JNI java/android support, by Michael Zucchi <notzed@gmail.com>

39 files changed, 3597 insertions, 66 deletions

diff --git a/Makefile.am b/Makefile.am
index 1e1a78d..8c68cf1 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1,6 +1,11 @@
 AUTOMAKE_OPTIONS = foreign
 SUBDIRS = src tests 
 EXTRA_DIST=COPYRIGHT ffts.pc.in
+ACLOCAL_AMFLAGS = -Im4
 
 pkgconfigdir = $(libdir)/pkgconfig
 pkgconfig_DATA = ffts.pc
+
+if ENABLE_JNI
+SUBDIRS += java
+endif
diff --git a/Makefile.in b/Makefile.in
index 328c949..4eea6fe 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -50,13 +50,21 @@ PRE_UNINSTALL = :
 POST_UNINSTALL = :
 build_triplet = @build@
 host_triplet = @host@
+@ENABLE_JNI_TRUE@am__append_1 = java
 subdir = .
 DIST_COMMON = README $(am__configure_deps) $(srcdir)/Makefile.am \
 	$(srcdir)/Makefile.in $(srcdir)/config.h.in \
 	$(srcdir)/ffts.pc.in $(top_srcdir)/configure config.guess \
 	config.sub depcomp install-sh ltmain.sh missing
 ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
-am__aclocal_m4_deps = $(top_srcdir)/configure.ac
+am__aclocal_m4_deps = $(top_srcdir)/m4/ax_check_classpath.m4 \
+	$(top_srcdir)/m4/ax_check_java_home.m4 \
+	$(top_srcdir)/m4/ax_java_options.m4 \
+	$(top_srcdir)/m4/ax_jni_include_dir.m4 \
+	$(top_srcdir)/m4/ax_prog_jar.m4 \
+	$(top_srcdir)/m4/ax_prog_javac.m4 \
+	$(top_srcdir)/m4/ax_prog_javac_works.m4 \
+	$(top_srcdir)/configure.ac
 am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
 	$(ACLOCAL_M4)
 am__CONFIG_DISTCLEAN_FILES = config.status config.cache config.log \
@@ -116,7 +124,7 @@ AM_RECURSIVE_TARGETS = $(RECURSIVE_TARGETS:-recursive=) \
 ETAGS = etags
 CTAGS = ctags
 CSCOPE = cscope
-DIST_SUBDIRS = $(SUBDIRS)
+DIST_SUBDIRS = src tests java
 DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
 distdir = $(PACKAGE)-$(VERSION)
 top_distdir = $(distdir)
@@ -196,6 +204,14 @@ INSTALL_DATA = @INSTALL_DATA@
 INSTALL_PROGRAM = @INSTALL_PROGRAM@
 INSTALL_SCRIPT = @INSTALL_SCRIPT@
 INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@
+JAR = @JAR@
+JAVA = @JAVA@
+JAVAC = @JAVAC@
+JAVACFLAGS = @JAVACFLAGS@
+JAVAFLAGS = @JAVAFLAGS@
+JAVAPREFIX = @JAVAPREFIX@
+JAVA_PATH_NAME = @JAVA_PATH_NAME@
+JNI_CPPFLAGS = @JNI_CPPFLAGS@
 LD = @LD@
 LDFLAGS = @LDFLAGS@
 LIBOBJS = @LIBOBJS@
@@ -227,6 +243,7 @@ SET_MAKE = @SET_MAKE@
 SHELL = @SHELL@
 STRIP = @STRIP@
 VERSION = @VERSION@
+_ACJNI_JAVAC = @_ACJNI_JAVAC@
 abs_builddir = @abs_builddir@
 abs_srcdir = @abs_srcdir@
 abs_top_builddir = @abs_top_builddir@
@@ -281,8 +298,9 @@ top_build_prefix = @top_build_prefix@
 top_builddir = @top_builddir@
 top_srcdir = @top_srcdir@
 AUTOMAKE_OPTIONS = foreign
-SUBDIRS = src tests 
+SUBDIRS = src tests $(am__append_1)
 EXTRA_DIST = COPYRIGHT ffts.pc.in
+ACLOCAL_AMFLAGS = -Im4
 pkgconfigdir = $(libdir)/pkgconfig
 pkgconfig_DATA = ffts.pc
 all: config.h
diff --git a/aclocal.m4 b/aclocal.m4
index 40d4613..52a5dff 100644
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -9549,3 +9549,10 @@ AC_SUBST([am__tar])
 AC_SUBST([am__untar])
 ]) # _AM_PROG_TAR
 
+m4_include([m4/ax_check_classpath.m4])
+m4_include([m4/ax_check_java_home.m4])
+m4_include([m4/ax_java_options.m4])
+m4_include([m4/ax_jni_include_dir.m4])
+m4_include([m4/ax_prog_jar.m4])
+m4_include([m4/ax_prog_javac.m4])
+m4_include([m4/ax_prog_javac_works.m4])
diff --git a/build_android.sh b/build_android.sh
index a9e6827..38e9d2c 100755
--- a/build_android.sh
+++ b/build_android.sh
@@ -3,7 +3,10 @@
 # Make sure you have NDK_ROOT defined in .bashrc or .bash_profile
 # Modify INSTALL_DIR to suit your situation
 
-INSTALL_DIR="`pwd`/jni/ffts"
+INSTALL_DIR="`pwd`/java/android/bin"
+
+PLATFORM=android-8
+TOOL="4.6"
 
 case $(uname -s) in
   Darwin)
@@ -11,8 +14,8 @@ case $(uname -s) in
     HOSTPLAT=darwin-x86
   ;;
   Linux)
-    CONFBUILD=i386-unknown-linux
-    HOSTPLAT=linux-x86
+    CONFBUILD=x86-unknown-linux
+    HOSTPLAT=linux-`uname -m`
   ;;
   *) echo $0: Unknown platform; exit
 esac
@@ -39,8 +42,10 @@ esac
 
 : ${NDK_ROOT:?}
 
-export PATH="$NDK_ROOT/toolchains/${TARGPLAT}-4.6/prebuilt/${HOSTPLAT}/bin/:$PATH"
-export SYS_ROOT="$NDK_ROOT/platforms/android-8/arch-${ARCH}/"
+echo "Using: $NDK_ROOT/toolchains/${TARGPLAT}-${TOOL}/prebuilt/${HOSTPLAT}/bin"
+
+export PATH="$NDK_ROOT/toolchains/${TARGPLAT}-${TOOL}/prebuilt/${HOSTPLAT}/bin/:$PATH"
+export SYS_ROOT="$NDK_ROOT/platforms/${PLATFORM}/arch-${ARCH}/"
 export CC="${TARGPLAT}-gcc --sysroot=$SYS_ROOT"
 export LD="${TARGPLAT}-ld"
 export AR="${TARGPLAT}-ar"
@@ -55,4 +60,21 @@ make clean
 make
 make install
 
+if [ -z "$ANDROID_HOME" ] ; then
+    echo ""
+    echo " No ANDROID_HOME defined"
+    echo " Android JNI interfaces will not be built"
+    echo
+else
+    echo
+    echo "Using android_home ${ANDROID_HOME}"
+    echo
+    ( cd java/android ; ${ANDROID_HOME}/tools/android update lib-project -p . ) || exit 1
+    ( cd java/android/jni ; ${NDK_ROOT}/ndk-build V=1 ) || exit 1
+    ( cd java/android ; ant release ) || exit 1
+    echo
+    echo "Android library project location:"
+    echo " `pwd`/java/android"
+    echo
+fi
 exit 0
diff --git a/config.h.in b/config.h.in
index b2bdf32..f91d8a9 100644
--- a/config.h.in
+++ b/config.h.in
@@ -3,9 +3,20 @@
 /* Define to disable dynamic code generation. */
 #undef DYNAMIC_DISABLED
 
+/* JNI being build. */
+#undef ENABLE_JNI
+
 /* Define to FFT in single precision. */
 #undef FFTS_PREC_SINGLE
 
+/* Define to 1 if you have the declaration of `memalign', and to 0 if you
+   don't. */
+#undef HAVE_DECL_MEMALIGN
+
+/* Define to 1 if you have the declaration of `posix_memalign', and to 0 if
+   you don't. */
+#undef HAVE_DECL_POSIX_MEMALIGN
+
 /* Define to 1 if you have the <dlfcn.h> header file. */
 #undef HAVE_DLFCN_H
 
diff --git a/configure b/configure
index 5ced898..01ec12e 100755
--- a/configure
+++ b/configure
@@ -635,6 +635,8 @@ ac_subst_vars='am__EXEEXT_FALSE
 am__EXEEXT_TRUE
 LTLIBOBJS
 LIBOBJS
+ENABLE_JNI_FALSE
+ENABLE_JNI_TRUE
 HAVE_VFP_FALSE
 HAVE_VFP_TRUE
 HAVE_NEON_FALSE
@@ -643,6 +645,15 @@ HAVE_SSE_FALSE
 HAVE_SSE_TRUE
 DYNAMIC_DISABLED_FALSE
 DYNAMIC_DISABLED_TRUE
+JNI_CPPFLAGS
+_ACJNI_JAVAC
+JAR
+JAVA_PATH_NAME
+JAVAC
+JAVA
+JAVAFLAGS
+JAVACFLAGS
+JAVAPREFIX
 am__fastdepCCAS_FALSE
 am__fastdepCCAS_TRUE
 CCASDEPMODE
@@ -774,11 +785,15 @@ enable_fast_install
 with_gnu_ld
 with_sysroot
 enable_libtool_lock
+with_java_prefix
+with_javac_flags
+with_java_flags
 enable_dynamic_code
 enable_single
 enable_sse
 enable_neon
 enable_vfp
+enable_jni
 '
       ac_precious_vars='build_alias
 host_alias
@@ -1427,6 +1442,7 @@ Optional Features:
   --enable-sse            enable SSE extensions
   --enable-neon           enable NEON extensions
   --enable-vfp            enable VFP extensions
+  --enable-jni            enable JNI binding
 
 Optional Packages:
   --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
@@ -1436,6 +1452,9 @@ Optional Packages:
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-sysroot=DIR Search for dependent libraries within DIR
                         (or the compiler's sysroot if not specified).
+  --with-java-prefix=PFX  prefix where Java runtime is installed (optional)
+  --with-javac-flags=FLAGS flags to pass to the Java compiler (optional)
+  --with-java-flags=FLAGS flags to pass to the Java VM (optional)
 
 Some influential environment variables:
   CXX         C++ compiler command
@@ -1914,6 +1933,52 @@ fi
 
 } # ac_fn_cxx_try_link
 
+# ac_fn_c_check_decl LINENO SYMBOL VAR INCLUDES
+# ---------------------------------------------
+# Tests whether SYMBOL is declared in INCLUDES, setting cache variable VAR
+# accordingly.
+ac_fn_c_check_decl ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  as_decl_name=`echo $2|sed 's/ *(.*//'`
+  as_decl_use=`echo $2|sed -e 's/(/((/' -e 's/)/) 0&/' -e 's/,/) 0& (/g'`
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $as_decl_name is declared" >&5
+$as_echo_n "checking whether $as_decl_name is declared... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+int
+main ()
+{
+#ifndef $as_decl_name
+#ifdef __cplusplus
+  (void) $as_decl_use;
+#else
+  (void) $as_decl_name;
+#endif
+#endif
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  eval "$3=yes"
+else
+  eval "$3=no"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} # ac_fn_c_check_decl
+
 # ac_fn_c_check_header_mongrel LINENO HEADER VAR INCLUDES
 # -------------------------------------------------------
 # Tests whether HEADER exists, giving a warning if it cannot be compiled using
@@ -3064,6 +3129,8 @@ am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'
 
 
 
+
+
 # AC_CONFIG_SRCDIR([include/common.h])
 ac_config_headers="$ac_config_headers config.h"
 
@@ -15347,6 +15414,441 @@ fi
 #CXX="clang++"
 #CXXFLAGS="$CXXFLAGS -stdlib=libc++"
 
+# Java stuff
+
+
+# Check whether --with-java-prefix was given.
+if test "${with_java_prefix+set}" = set; then :
+  withval=$with_java_prefix;
+fi
+
+
+# Check whether --with-javac-flags was given.
+if test "${with_javac_flags+set}" = set; then :
+  withval=$with_javac_flags;
+fi
+
+
+# Check whether --with-java-flags was given.
+if test "${with_java_flags+set}" = set; then :
+  withval=$with_java_flags;
+fi
+
+JAVAPREFIX=$with_java_prefix
+JAVACFLAGS=$with_javac_flags
+JAVAFLAGS=$with_java_flags
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for JAVA_HOME" >&5
+$as_echo_n "checking for JAVA_HOME... " >&6; }
+# We used a fake loop so that we can use "break" to exit when the result
+# is found.
+while true
+do
+  # If the user defined JAVA_HOME, don't touch it.
+  test "${JAVA_HOME+set}" = set && break
+
+  # On Mac OS X 10.5 and following, run /usr/libexec/java_home to get
+  # the value of JAVA_HOME to use.
+  # (http://developer.apple.com/library/mac/#qa/qa2001/qa1170.html).
+  JAVA_HOME=`/usr/libexec/java_home 2>/dev/null`
+  test x"$JAVA_HOME" != x && break
+
+  # See if we can find the java executable, and compute from there.
+  TRY_JAVA_HOME=`ls -dr /usr/java/* 2> /dev/null | head -n 1`
+  if test x$TRY_JAVA_HOME != x; then
+    PATH=$PATH:$TRY_JAVA_HOME/bin
+  fi
+  # Extract the first word of "java", so it can be a program name with args.
+set dummy java; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_path_JAVA_PATH_NAME+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  case $JAVA_PATH_NAME in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_JAVA_PATH_NAME="$JAVA_PATH_NAME" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_path_JAVA_PATH_NAME="$as_dir/$ac_word$ac_exec_ext"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+JAVA_PATH_NAME=$ac_cv_path_JAVA_PATH_NAME
+if test -n "$JAVA_PATH_NAME"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $JAVA_PATH_NAME" >&5
+$as_echo "$JAVA_PATH_NAME" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  if test "x$JAVA_PATH_NAME" != x; then
+    JAVA_HOME=`echo $JAVA_PATH_NAME | sed "s/\(.*\)[/]bin[/]java.*/\1/"`
+    break
+  fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: Could not compute JAVA_HOME" >&5
+$as_echo "$as_me: Could not compute JAVA_HOME" >&6;}
+  break
+done
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $JAVA_HOME" >&5
+$as_echo "$JAVA_HOME" >&6; }
+
+
+if test "x$CLASSPATH" = x; then
+        echo "You have no CLASSPATH, I hope it is good"
+else
+        echo "You have CLASSPATH $CLASSPATH, hope it is correct"
+fi
+
+
+if test "x$JAVAPREFIX" = x; then
+        test "x$JAVAC" = x && for ac_prog in "gcj -C" guavac jikes javac
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_JAVAC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$JAVAC"; then
+  ac_cv_prog_JAVAC="$JAVAC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_JAVAC="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+JAVAC=$ac_cv_prog_JAVAC
+if test -n "$JAVAC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $JAVAC" >&5
+$as_echo "$JAVAC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$JAVAC" && break
+done
+
+else
+        test "x$JAVAC" = x && for ac_prog in "gcj -C" guavac jikes javac
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_JAVAC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$JAVAC"; then
+  ac_cv_prog_JAVAC="$JAVAC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_JAVAC="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+JAVAC=$ac_cv_prog_JAVAC
+if test -n "$JAVAC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $JAVAC" >&5
+$as_echo "$JAVAC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$JAVAC" && break
+done
+test -n "$JAVAC" || JAVAC="$JAVAPREFIX"
+
+fi
+test "x$JAVAC" = x && as_fn_error $? "no acceptable Java compiler found in \$PATH" "$LINENO" 5
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $JAVAC works" >&5
+$as_echo_n "checking if $JAVAC works... " >&6; }
+if ${ac_cv_prog_javac_works+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+JAVA_TEST=Test.java
+CLASS_TEST=Test.class
+cat << \EOF > $JAVA_TEST
+/* #line 15620 "configure" */
+public class Test {
+}
+EOF
+if { ac_try='$JAVAC $JAVACFLAGS $JAVA_TEST'
+  { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; } >/dev/null 2>&1; then
+  ac_cv_prog_javac_works=yes
+else
+  as_fn_error $? "The Java compiler $JAVAC failed (see config.log, check the CLASSPATH?)" "$LINENO" 5
+  echo "configure: failed program was:" >&5
+  cat $JAVA_TEST >&5
+fi
+rm -f $JAVA_TEST $CLASS_TEST
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_javac_works" >&5
+$as_echo "$ac_cv_prog_javac_works" >&6; }
+
+
+# blah this whinges about something
+#AC_PROG_JAVAH
+
+
+if test "x$JAVAPREFIX" = x; then
+        test "x$JAR" = x && for ac_prog in jar$EXEEXT
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_JAR+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$JAR"; then
+  ac_cv_prog_JAR="$JAR" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_JAR="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+JAR=$ac_cv_prog_JAR
+if test -n "$JAR"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $JAR" >&5
+$as_echo "$JAR" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$JAR" && break
+done
+
+else
+        test "x$JAR" = x && for ac_prog in jar
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_JAR+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$JAR"; then
+  ac_cv_prog_JAR="$JAR" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_JAR="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+JAR=$ac_cv_prog_JAR
+if test -n "$JAR"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $JAR" >&5
+$as_echo "$JAR" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$JAR" && break
+done
+test -n "$JAR" || JAR="$JAVAPREFIX"
+
+fi
+test "x$JAR" = x && as_fn_error $? "no acceptable jar program found in \$PATH" "$LINENO" 5
+
+
+
+JNI_INCLUDE_DIRS=""
+
+test "x$JAVAC" = x && as_fn_error $? "'\$JAVAC' undefined" "$LINENO" 5
+# Extract the first word of "$JAVAC", so it can be a program name with args.
+set dummy $JAVAC; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_path__ACJNI_JAVAC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  case $_ACJNI_JAVAC in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path__ACJNI_JAVAC="$_ACJNI_JAVAC" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_path__ACJNI_JAVAC="$as_dir/$ac_word$ac_exec_ext"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  test -z "$ac_cv_path__ACJNI_JAVAC" && ac_cv_path__ACJNI_JAVAC="no"
+  ;;
+esac
+fi
+_ACJNI_JAVAC=$ac_cv_path__ACJNI_JAVAC
+if test -n "$_ACJNI_JAVAC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $_ACJNI_JAVAC" >&5
+$as_echo "$_ACJNI_JAVAC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+test "x$_ACJNI_JAVAC" = xno && as_fn_error $? "$JAVAC could not be found in path" "$LINENO" 5
+
+
+# find the include directory relative to the javac executable
+_cur=""$_ACJNI_JAVAC""
+while ls -ld "$_cur" 2>/dev/null | grep " -> " >/dev/null; do
+        { $as_echo "$as_me:${as_lineno-$LINENO}: checking symlink for $_cur" >&5
+$as_echo_n "checking symlink for $_cur... " >&6; }
+        _slink=`ls -ld "$_cur" | sed 's/.* -> //'`
+        case "$_slink" in
+        /*) _cur="$_slink";;
+        # 'X' avoids triggering unwanted echo options.
+        *) _cur=`echo "X$_cur" | sed -e 's/^X//' -e 's:[^/]*$::'`"$_slink";;
+        esac
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: $_cur" >&5
+$as_echo "$_cur" >&6; }
+done
+_ACJNI_FOLLOWED="$_cur"
+
+_JTOPDIR=`echo "$_ACJNI_FOLLOWED" | sed -e 's://*:/:g' -e 's:/[^/]*$::'`
+case "$host_os" in
+        darwin*)        _JTOPDIR=`echo "$_JTOPDIR" | sed -e 's:/[^/]*$::'`
+                        _JINC="$_JTOPDIR/Headers";;
+        *)              _JINC="$_JTOPDIR/include";;
+esac
+$as_echo "$as_me:${as_lineno-$LINENO}: _JTOPDIR=$_JTOPDIR" >&5
+$as_echo "$as_me:${as_lineno-$LINENO}: _JINC=$_JINC" >&5
+
+# On Mac OS X 10.6.4, jni.h is a symlink:
+# /System/Library/Frameworks/JavaVM.framework/Versions/Current/Headers/jni.h
+# -> ../../CurrentJDK/Headers/jni.h.
+if test -f "$_JINC/jni.h" || test -L "$_JINC/jni.h"; then
+        JNI_INCLUDE_DIRS="$JNI_INCLUDE_DIRS $_JINC"
+else
+        _JTOPDIR=`echo "$_JTOPDIR" | sed -e 's:/[^/]*$::'`
+        if test -f "$_JTOPDIR/include/jni.h"; then
+                JNI_INCLUDE_DIRS="$JNI_INCLUDE_DIRS $_JTOPDIR/include"
+        else
+                as_fn_error $? "cannot find java include files" "$LINENO" 5
+        fi
+fi
+
+# get the likely subdirectories for system specific java includes
+case "$host_os" in
+bsdi*)          _JNI_INC_SUBDIRS="bsdos";;
+freebsd*)       _JNI_INC_SUBDIRS="freebsd";;
+linux*)         _JNI_INC_SUBDIRS="linux genunix";;
+osf*)           _JNI_INC_SUBDIRS="alpha";;
+solaris*)       _JNI_INC_SUBDIRS="solaris";;
+mingw*)		_JNI_INC_SUBDIRS="win32";;
+cygwin*)	_JNI_INC_SUBDIRS="win32";;
+*)              _JNI_INC_SUBDIRS="genunix";;
+esac
+
+# add any subdirectories that are present
+for JINCSUBDIR in $_JNI_INC_SUBDIRS
+do
+    if test -d "$_JTOPDIR/include/$JINCSUBDIR"; then
+         JNI_INCLUDE_DIRS="$JNI_INCLUDE_DIRS $_JTOPDIR/include/$JINCSUBDIR"
+    fi
+done
+
+for JNI_INCLUDE_DIR in $JNI_INCLUDE_DIRS
+do
+    JNI_CPPFLAGS="$JNI_CPPFLAGS -I$JNI_INCLUDE_DIR"
+done
+JNI_CPPFLAGS=$JNI_CPPFLAGS
+
+
 #SFFT_AR="/usr/bin/ar"
 #SFFT_CFLAGS="$CFLAGS"
 #SFFT_CC="$CC"
@@ -15459,6 +15961,27 @@ else
 fi
 
 
+# Check whether --enable-jni was given.
+if test "${enable_jni+set}" = set; then :
+  enableval=$enable_jni; have_jni=$enableval
+else
+  have_jni=no
+fi
+
+if test "$have_jni" = "yes"; then
+
+$as_echo "#define ENABLE_JNI 1" >>confdefs.h
+
+fi
+ if test "$have_sse" = "yes"; then
+  ENABLE_JNI_TRUE=
+  ENABLE_JNI_FALSE='#'
+else
+  ENABLE_JNI_TRUE='#'
+  ENABLE_JNI_FALSE=
+fi
+
+
 #AC_CANONICAL_HOST
 { $as_echo "$as_me:${as_lineno-$LINENO}: host is \"${host}\"" >&5
 $as_echo "$as_me: host is \"${host}\"" >&6;}
@@ -15480,10 +16003,9 @@ esac
 #fi
 
 # Checks for libraries.
-# FIXME: Replace `main' with a function in `-lm':
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for main in -lm" >&5
-$as_echo_n "checking for main in -lm... " >&6; }
-if ${ac_cv_lib_m_main+:} false; then :
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for cos in -lm" >&5
+$as_echo_n "checking for cos in -lm... " >&6; }
+if ${ac_cv_lib_m_cos+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -15491,27 +16013,33 @@ LIBS="-lm  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
-
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char cos ();
 int
 main ()
 {
-return main ();
+return cos ();
   ;
   return 0;
 }
 _ACEOF
 if ac_fn_c_try_link "$LINENO"; then :
-  ac_cv_lib_m_main=yes
+  ac_cv_lib_m_cos=yes
 else
-  ac_cv_lib_m_main=no
+  ac_cv_lib_m_cos=no
 fi
 rm -f core conftest.err conftest.$ac_objext \
     conftest$ac_exeext conftest.$ac_ext
 LIBS=$ac_check_lib_save_LIBS
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_m_main" >&5
-$as_echo "$ac_cv_lib_m_main" >&6; }
-if test "x$ac_cv_lib_m_main" = xyes; then :
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_m_cos" >&5
+$as_echo "$ac_cv_lib_m_cos" >&6; }
+if test "x$ac_cv_lib_m_cos" = xyes; then :
   cat >>confdefs.h <<_ACEOF
 #define HAVE_LIBM 1
 _ACEOF
@@ -15520,6 +16048,33 @@ _ACEOF
 
 fi
 
+ac_fn_c_check_decl "$LINENO" "posix_memalign" "ac_cv_have_decl_posix_memalign" "#define _XOPEN_SOURCE 600
+                #include <stdlib.h>
+                #include <malloc.h>
+"
+if test "x$ac_cv_have_decl_posix_memalign" = xyes; then :
+  ac_have_decl=1
+else
+  ac_have_decl=0
+fi
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_POSIX_MEMALIGN $ac_have_decl
+_ACEOF
+ac_fn_c_check_decl "$LINENO" "memalign" "ac_cv_have_decl_memalign" "#define _XOPEN_SOURCE 600
+                #include <stdlib.h>
+                #include <malloc.h>
+"
+if test "x$ac_cv_have_decl_memalign" = xyes; then :
+  ac_have_decl=1
+else
+  ac_have_decl=0
+fi
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_MEMALIGN $ac_have_decl
+_ACEOF
+
 
 # Checks for header files.
 for ac_header in stdint.h stdlib.h string.h sys/socket.h sys/time.h unistd.h
@@ -16076,7 +16631,7 @@ done
 
 
 
-ac_config_files="$ac_config_files Makefile src/Makefile tests/Makefile ffts.pc"
+ac_config_files="$ac_config_files Makefile src/Makefile tests/Makefile ffts.pc java/Makefile"
 
 cat >confcache <<\_ACEOF
 # This file is a shell script that caches the results of configure
@@ -16235,6 +16790,10 @@ if test -z "${HAVE_VFP_TRUE}" && test -z "${HAVE_VFP_FALSE}"; then
   as_fn_error $? "conditional \"HAVE_VFP\" was never defined.
 Usually this means the macro was only invoked conditionally." "$LINENO" 5
 fi
+if test -z "${ENABLE_JNI_TRUE}" && test -z "${ENABLE_JNI_FALSE}"; then
+  as_fn_error $? "conditional \"ENABLE_JNI\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
 
 : "${CONFIG_STATUS=./config.status}"
 ac_write_fail=0
@@ -17209,6 +17768,7 @@ do
     "src/Makefile") CONFIG_FILES="$CONFIG_FILES src/Makefile" ;;
     "tests/Makefile") CONFIG_FILES="$CONFIG_FILES tests/Makefile" ;;
     "ffts.pc") CONFIG_FILES="$CONFIG_FILES ffts.pc" ;;
+    "java/Makefile") CONFIG_FILES="$CONFIG_FILES java/Makefile" ;;
 
   *) as_fn_error $? "invalid argument: \`$ac_config_target'" "$LINENO" 5;;
   esac
diff --git a/configure.ac b/configure.ac
index b4eb280..961c736 100644
--- a/configure.ac
+++ b/configure.ac
@@ -5,6 +5,8 @@ AC_PREREQ([2.68])
 AC_INIT(ffts, 0.7, amb@anthonix.com)
 AM_INIT_AUTOMAKE(ffts, 0.7)
 
+AC_CONFIG_MACRO_DIR([m4])
+
 # AC_CONFIG_SRCDIR([include/common.h])
 AC_CONFIG_HEADERS([config.h])
 
@@ -17,6 +19,21 @@ AM_PROG_AS
 #CXX="clang++"
 #CXXFLAGS="$CXXFLAGS -stdlib=libc++"
 
+# Java stuff
+AX_JAVA_OPTIONS
+AC_CHECK_JAVA_HOME
+AC_CHECK_CLASSPATH
+AC_PROG_JAVAC
+# blah this whinges about something
+#AC_PROG_JAVAH
+AC_PROG_JAR
+AX_JNI_INCLUDE_DIR
+for JNI_INCLUDE_DIR in $JNI_INCLUDE_DIRS
+do
+    JNI_CPPFLAGS="$JNI_CPPFLAGS -I$JNI_INCLUDE_DIR"
+done
+AC_SUBST(JNI_CPPFLAGS, [$JNI_CPPFLAGS])
+
 #SFFT_AR="/usr/bin/ar"
 #SFFT_CFLAGS="$CFLAGS"
 #SFFT_CC="$CC"
@@ -59,6 +76,12 @@ if test "$have_vfp" = "yes"; then
 fi
 AM_CONDITIONAL(HAVE_VFP, test "$have_vfp" = "yes")
 
+AC_ARG_ENABLE(jni, [AC_HELP_STRING([--enable-jni],[enable JNI binding])], have_jni=$enableval, have_jni=no)
+if test "$have_jni" = "yes"; then
+	AC_DEFINE(ENABLE_JNI,1,[JNI being build.])
+fi
+AM_CONDITIONAL(ENABLE_JNI, test "$have_sse" = "yes")
+
 #AC_CANONICAL_HOST
 AC_MSG_NOTICE([host is "${host}"])
 case "${host}" in
@@ -79,8 +102,12 @@ esac
 #fi
 
 # Checks for libraries.
-# FIXME: Replace `main' with a function in `-lm':
-AC_CHECK_LIB([m], [main])
+AC_CHECK_LIB([m], [cos])
+AC_CHECK_DECLS([posix_memalign,
+                memalign],,,
+               [#define _XOPEN_SOURCE 600
+                #include <stdlib.h>
+                #include <malloc.h>])
 
 # Checks for header files.
 AC_CHECK_HEADERS([stdint.h stdlib.h string.h sys/socket.h sys/time.h unistd.h])
@@ -105,6 +132,7 @@ AC_CHECK_FUNCS([gettimeofday pow])
 AC_CONFIG_FILES([Makefile
                  src/Makefile
                  tests/Makefile
-								 ffts.pc
+		 ffts.pc
+		 java/Makefile
                  ])
 AC_OUTPUT
diff --git a/java/Makefile.am b/java/Makefile.am
new file mode 100644
index 0000000..83ff5d8
--- /dev/null
+++ b/java/Makefile.am
@@ -0,0 +1,33 @@
+
+# TODO: the ax_prog_javah thing doesn't work so this
+# requires javah in the path
+
+if ENABLE_JNI
+JAVA_SRC=$(shell find $(srcdir)/src -name '*.java')
+
+BUILT_SOURCES = nz_ac_waikato_ffts_FFTS.h
+
+all: ffts.jar
+
+classes ffts.jar: $(JAVA_SRC)
+	-rm -rf classes
+	mkdir classes
+	$(JAVAC) -d classes -sourcepath src $(JAVA_SRC)
+	$(JAR) -cf ffts.jar -C classes .
+
+lib_LTLIBRARIES = libffts_jni.la
+libffts_jni_la_SOURCES = jni/ffts_jni.c
+nodist_include_HEADERS = nz_ac_waikato_ffts_FFTS.h
+libffts_jni_la_LIBADD = $(top_builddir)/src/libffts.la
+libffts_jni_la_CFLAGS = @JNI_CPPFLAGS@ $(AM_CFLAGS) -I$(top_srcdir)/include
+libffts_jni_la_LDFLAGS = -shared
+
+pkgdata_DATA = ffts.jar
+
+nz_ac_waikato_ffts_FFTS.h: classes
+	javah -cp $< nz.ac.waikato.ffts.FFTS
+
+CLEANFILES=ffts.jar nz_ac_waikato_ffts_FFTS.h
+clean-local:
+	-rm -rf classes
+endif
diff --git a/java/Makefile.in b/java/Makefile.in
new file mode 100644
index 0000000..45d41c4
--- /dev/null
+++ b/java/Makefile.in
@@ -0,0 +1,681 @@
+# Makefile.in generated by automake 1.12.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2012 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# TODO: the ax_prog_javah thing doesn't work so this
+# requires javah in the path
+
+
+
+VPATH = @srcdir@
+am__make_dryrun = \
+  { \
+    am__dry=no; \
+    case $$MAKEFLAGS in \
+      *\\[\ \	]*) \
+        echo 'am--echo: ; @echo "AM"  OK' | $(MAKE) -f - 2>/dev/null \
+          | grep '^AM OK$$' >/dev/null || am__dry=yes;; \
+      *) \
+        for am__flg in $$MAKEFLAGS; do \
+          case $$am__flg in \
+            *=*|--*) ;; \
+            *n*) am__dry=yes; break;; \
+          esac; \
+        done;; \
+    esac; \
+    test $$am__dry = yes; \
+  }
+pkgdatadir = $(datadir)/@PACKAGE@
+pkgincludedir = $(includedir)/@PACKAGE@
+pkglibdir = $(libdir)/@PACKAGE@
+pkglibexecdir = $(libexecdir)/@PACKAGE@
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = @build@
+host_triplet = @host@
+subdir = java
+DIST_COMMON = $(srcdir)/Makefile.am $(srcdir)/Makefile.in \
+	$(top_srcdir)/depcomp
+ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
+am__aclocal_m4_deps = $(top_srcdir)/m4/ax_check_classpath.m4 \
+	$(top_srcdir)/m4/ax_check_java_home.m4 \
+	$(top_srcdir)/m4/ax_java_options.m4 \
+	$(top_srcdir)/m4/ax_jni_include_dir.m4 \
+	$(top_srcdir)/m4/ax_prog_jar.m4 \
+	$(top_srcdir)/m4/ax_prog_javac.m4 \
+	$(top_srcdir)/m4/ax_prog_javac_works.m4 \
+	$(top_srcdir)/configure.ac
+am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
+	$(ACLOCAL_M4)
+mkinstalldirs = $(install_sh) -d
+CONFIG_HEADER = $(top_builddir)/config.h
+CONFIG_CLEAN_FILES =
+CONFIG_CLEAN_VPATH_FILES =
+am__vpath_adj_setup = srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`;
+am__vpath_adj = case $$p in \
+    $(srcdir)/*) f=`echo "$$p" | sed "s|^$$srcdirstrip/||"`;; \
+    *) f=$$p;; \
+  esac;
+am__strip_dir = f=`echo $$p | sed -e 's|^.*/||'`;
+am__install_max = 40
+am__nobase_strip_setup = \
+  srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*|]/\\\\&/g'`
+am__nobase_strip = \
+  for p in $$list; do echo "$$p"; done | sed -e "s|$$srcdirstrip/||"
+am__nobase_list = $(am__nobase_strip_setup); \
+  for p in $$list; do echo "$$p $$p"; done | \
+  sed "s| $$srcdirstrip/| |;"' / .*\//!s/ .*/ ./; s,\( .*\)/[^/]*$$,\1,' | \
+  $(AWK) 'BEGIN { files["."] = "" } { files[$$2] = files[$$2] " " $$1; \
+    if (++n[$$2] == $(am__install_max)) \
+      { print $$2, files[$$2]; n[$$2] = 0; files[$$2] = "" } } \
+    END { for (dir in files) print dir, files[dir] }'
+am__base_list = \
+  sed '$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;s/\n/ /g' | \
+  sed '$$!N;$$!N;$$!N;$$!N;s/\n/ /g'
+am__uninstall_files_from_dir = { \
+  test -z "$$files" \
+    || { test ! -d "$$dir" && test ! -f "$$dir" && test ! -r "$$dir"; } \
+    || { echo " ( cd '$$dir' && rm -f" $$files ")"; \
+         $(am__cd) "$$dir" && rm -f $$files; }; \
+  }
+am__installdirs = "$(DESTDIR)$(libdir)" "$(DESTDIR)$(pkgdatadir)" \
+	"$(DESTDIR)$(includedir)"
+LTLIBRARIES = $(lib_LTLIBRARIES)
+@ENABLE_JNI_TRUE@libffts_jni_la_DEPENDENCIES =  \
+@ENABLE_JNI_TRUE@	$(top_builddir)/src/libffts.la
+am__libffts_jni_la_SOURCES_DIST = jni/ffts_jni.c
+@ENABLE_JNI_TRUE@am_libffts_jni_la_OBJECTS =  \
+@ENABLE_JNI_TRUE@	libffts_jni_la-ffts_jni.lo
+libffts_jni_la_OBJECTS = $(am_libffts_jni_la_OBJECTS)
+libffts_jni_la_LINK = $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=link $(CCLD) $(libffts_jni_la_CFLAGS) \
+	$(CFLAGS) $(libffts_jni_la_LDFLAGS) $(LDFLAGS) -o $@
+@ENABLE_JNI_TRUE@am_libffts_jni_la_rpath = -rpath $(libdir)
+DEFAULT_INCLUDES = -I.@am__isrc@ -I$(top_builddir)
+depcomp = $(SHELL) $(top_srcdir)/depcomp
+am__depfiles_maybe = depfiles
+am__mv = mv -f
+COMPILE = $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) \
+	$(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
+LTCOMPILE = $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
+	--mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) \
+	$(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
+CCLD = $(CC)
+LINK = $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
+	--mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) \
+	$(LDFLAGS) -o $@
+SOURCES = $(libffts_jni_la_SOURCES)
+DIST_SOURCES = $(am__libffts_jni_la_SOURCES_DIST)
+am__can_run_installinfo = \
+  case $$AM_UPDATE_INFO_DIR in \
+    n|no|NO) false;; \
+    *) (install-info --version) >/dev/null 2>&1;; \
+  esac
+DATA = $(pkgdata_DATA)
+HEADERS = $(nodist_include_HEADERS)
+ETAGS = etags
+CTAGS = ctags
+DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
+ACLOCAL = @ACLOCAL@
+AMTAR = @AMTAR@
+AR = @AR@
+AUTOCONF = @AUTOCONF@
+AUTOHEADER = @AUTOHEADER@
+AUTOMAKE = @AUTOMAKE@
+AWK = @AWK@
+CC = @CC@
+CCAS = @CCAS@
+CCASDEPMODE = @CCASDEPMODE@
+CCASFLAGS = @CCASFLAGS@
+CCDEPMODE = @CCDEPMODE@
+CFLAGS = @CFLAGS@
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+.PHONY: CTAGS GTAGS all all-am check check-am clean clean-generic \
+	clean-libLTLIBRARIES clean-libtool clean-local cscopelist \
+	ctags distclean distclean-compile distclean-generic \
+	distclean-libtool distclean-tags distdir dvi dvi-am html \
+	html-am info info-am install install-am install-data \
+	install-data-am install-dvi install-dvi-am install-exec \
+	install-exec-am install-html install-html-am install-info \
+	install-info-am install-libLTLIBRARIES install-man \
+	install-nodist_includeHEADERS install-pdf install-pdf-am \
+	install-pkgdataDATA install-ps install-ps-am install-strip \
+	installcheck installcheck-am installdirs maintainer-clean \
+	maintainer-clean-generic mostlyclean mostlyclean-compile \
+	mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
+	tags uninstall uninstall-am uninstall-libLTLIBRARIES \
+	uninstall-nodist_includeHEADERS uninstall-pkgdataDATA
+
+
+@ENABLE_JNI_TRUE@all: ffts.jar
+
+@ENABLE_JNI_TRUE@classes ffts.jar: $(JAVA_SRC)
+@ENABLE_JNI_TRUE@	-rm -rf classes
+@ENABLE_JNI_TRUE@	mkdir classes
+@ENABLE_JNI_TRUE@	$(JAVAC) -d classes -sourcepath src $(JAVA_SRC)
+@ENABLE_JNI_TRUE@	$(JAR) -cf ffts.jar -C classes .
+
+@ENABLE_JNI_TRUE@nz_ac_waikato_ffts_FFTS.h: classes
+@ENABLE_JNI_TRUE@	javah -cp $< nz.ac.waikato.ffts.FFTS
+@ENABLE_JNI_TRUE@clean-local:
+@ENABLE_JNI_TRUE@	-rm -rf classes
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/java/android/AndroidManifest.xml b/java/android/AndroidManifest.xml
new file mode 100644
index 0000000..6475e8e
--- /dev/null
+++ b/java/android/AndroidManifest.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+      package="nz.waikato.ffts"
+      android:versionCode="1"
+      android:versionName="1.0">
+  <uses-sdk android:minSdkVersion="8" />
+</manifest> 
diff --git a/java/android/ant.properties b/java/android/ant.properties
new file mode 100644
index 0000000..95346d2
--- /dev/null
+++ b/java/android/ant.properties
@@ -0,0 +1,18 @@
+# This file is used to override default values used by the Ant build system.
+#
+# This file must be checked into Version Control Systems, as it is
+# integral to the build system of your project.
+
+# This file is only used by the Ant script.
+
+# You can use this to override default values such as
+#  'source.dir' for the location of your java source folder and
+#  'out.dir' for the location of your output folder.
+source.dir=../src
+
+# You can also use it define how the release builds are signed by declaring
+# the following properties:
+#  'key.store' for the location of your keystore and
+#  'key.alias' for the name of the key to use.
+# The password will be asked during the build when you use the 'release' target.
+
diff --git a/java/android/build.xml b/java/android/build.xml
new file mode 100644
index 0000000..4d6cc3d
--- /dev/null
+++ b/java/android/build.xml
@@ -0,0 +1,92 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project name="ffts" default="help">
+
+    <!-- The local.properties file is created and updated by the 'android' tool.
+         It contains the path to the SDK. It should *NOT* be checked into
+         Version Control Systems. -->
+    <property file="local.properties" />
+
+    <!-- The ant.properties file can be created by you. It is only edited by the
+         'android' tool to add properties to it.
+         This is the place to change some Ant specific build properties.
+         Here are some properties you may want to change/update:
+
+         source.dir
+             The name of the source directory. Default is 'src'.
+         out.dir
+             The name of the output directory. Default is 'bin'.
+
+         For other overridable properties, look at the beginning of the rules
+         files in the SDK, at tools/ant/build.xml
+
+         Properties related to the SDK location or the project target should
+         be updated using the 'android' tool with the 'update' action.
+
+         This file is an integral part of the build system for your
+         application and should be checked into Version Control Systems.
+
+         -->
+    <property file="ant.properties" />
+
+    <!-- if sdk.dir was not set from one of the property file, then
+         get it from the ANDROID_HOME env var.
+         This must be done before we load project.properties since
+         the proguard config can use sdk.dir -->
+    <property environment="env" />
+    <condition property="sdk.dir" value="${env.ANDROID_HOME}">
+        <isset property="env.ANDROID_HOME" />
+    </condition>
+
+    <!-- The project.properties file is created and updated by the 'android'
+         tool, as well as ADT.
+
+         This contains project specific properties such as project target, and library
+         dependencies. Lower level build properties are stored in ant.properties
+         (or in .classpath for Eclipse projects).
+
+         This file is an integral part of the build system for your
+         application and should be checked into Version Control Systems. -->
+    <loadproperties srcFile="project.properties" />
+
+    <!-- quick check on sdk.dir -->
+    <fail
+            message="sdk.dir is missing. Make sure to generate local.properties using 'android update project' or to inject it through the ANDROID_HOME environment variable."
+            unless="sdk.dir"
+    />
+
+    <!--
+        Import per project custom build rules if present at the root of the project.
+        This is the place to put custom intermediary targets such as:
+            -pre-build
+            -pre-compile
+            -post-compile (This is typically used for code obfuscation.
+                           Compiled code location: ${out.classes.absolute.dir}
+                           If this is not done in place, override ${out.dex.input.absolute.dir})
+            -post-package
+            -post-build
+            -pre-clean
+    -->
+    <import file="custom_rules.xml" optional="true" />
+
+    <!-- Import the actual build file.
+
+         To customize existing targets, there are two options:
+         - Customize only one target:
+             - copy/paste the target into this file, *before* the
+               <import> task.
+             - customize it to your needs.
+         - Customize the whole content of build.xml
+             - copy/paste the content of the rules files (minus the top node)
+               into this file, replacing the <import> task.
+             - customize to your needs.
+
+         ***********************
+         ****** IMPORTANT ******
+         ***********************
+         In all cases you must update the value of version-tag below to read 'custom' instead of an integer,
+         in order to avoid having your file be overridden by tools such as "android update project"
+    -->
+    <!-- version-tag: 1 -->
+    <import file="${sdk.dir}/tools/ant/build.xml" />
+
+</project>
diff --git a/java/android/jni/Android.mk b/java/android/jni/Android.mk
new file mode 100644
index 0000000..a304781
--- /dev/null
+++ b/java/android/jni/Android.mk
@@ -0,0 +1,25 @@
+LOCAL_PATH := $(call my-dir)
+
+TOP=../../..
+
+# Include the shared library
+#include $(CLEAR_VARS)
+#LOCAL_MODULE := ffts
+#LOCAL_SRC_FILES :=  ../../../src/.libs/libffts.so
+#include $(PREBUILT_SHARED_LIBRARY)
+
+# Include the static library in shared lib
+include $(CLEAR_VARS)
+LOCAL_MODULE := ffts
+LOCAL_SRC_FILES := $(TOP)/java/android/bin/lib/libffts.a
+LOCAL_EXPORT_C_INCLUDES := $(TOP)/include
+include $(PREBUILT_STATIC_LIBRARY)
+
+include $(CLEAR_VARS)
+LOCAL_MODULE := ffts_jni
+LOCAL_CFLAGS := -I$(TOP)/include -I$(TOP)/java/jni -I$(TOP) -Wno-pointer-to-int-cast -Wno-int-to-pointer-cast
+LOCAL_SRC_FILES := $(TOP)/java/jni/ffts_jni.c
+LOCAL_LDLIBS := 
+LOCAL_STATIC_LIBRARIES := ffts
+
+include $(BUILD_SHARED_LIBRARY)
diff --git a/java/android/jni/Application.mk b/java/android/jni/Application.mk
new file mode 100644
index 0000000..12c9df6
--- /dev/null
+++ b/java/android/jni/Application.mk
@@ -0,0 +1,2 @@
+# requires NEON atm
+APP_ABI := armeabi-v7a
diff --git a/java/android/proguard-project.txt b/java/android/proguard-project.txt
new file mode 100644
index 0000000..f2fe155
--- /dev/null
+++ b/java/android/proguard-project.txt
@@ -0,0 +1,20 @@
+# To enable ProGuard in your project, edit project.properties
+# to define the proguard.config property as described in that file.
+#
+# Add project specific ProGuard rules here.
+# By default, the flags in this file are appended to flags specified
+# in ${sdk.dir}/tools/proguard/proguard-android.txt
+# You can edit the include path and order by changing the ProGuard
+# include property in project.properties.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# Add any project specific keep options here:
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
diff --git a/java/android/project.properties b/java/android/project.properties
new file mode 100644
index 0000000..88ca83f
--- /dev/null
+++ b/java/android/project.properties
@@ -0,0 +1,15 @@
+# This file is automatically generated by Android Tools.
+# Do not modify this file -- YOUR CHANGES WILL BE ERASED!
+#
+# This file must be checked in Version Control Systems.
+#
+# To customize properties used by the Ant build system edit
+# "ant.properties", and override values to adapt the script to your
+# project structure.
+#
+# To enable ProGuard to shrink and obfuscate your code, uncomment this (available properties: sdk.dir, user.home):
+#proguard.config=${sdk.dir}/tools/proguard/proguard-android.txt:proguard-project.txt
+
+android.library=true
+# Project target.
+target=android-10
diff --git a/java/jni/ffts_jni.c b/java/jni/ffts_jni.c
new file mode 100644
index 0000000..41fdf76
--- /dev/null
+++ b/java/jni/ffts_jni.c
@@ -0,0 +1,233 @@
+/*
+ * This file is part of FFTS -- The Fastest Fourier Transform in the South
+ *
+ * Copyright (c) 2013, Michael Zucchi <notzed@gmail.com>
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ *   * Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ *   * Neither the name of the organization nor the
+ *     names of its contributors may be used to endorse or promote products
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL ANTHONY M. BLAKE BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+
+#include <ffts.h>
+#include <alloca.h>
+
+// Bit of a hack for android, as we can't build the *.h without
+// the classes ... but we can't build the project without the jni.
+#ifdef ANDROID
+#include <jni.h>
+#else
+#include "nz_ac_waikato_ffts_FFTS.h"
+#endif
+
+// TODO: feature tests instead
+#ifdef HAVE_SSE
+#define NEEDS_ALIGNED
+#endif
+
+#ifdef NEEDS_ALIGNED
+#define ALIGN_MASK 15
+
+static void *
+xmemalign(size_t align, size_t size) {
+#if defined(HAVE_DECL_POSIX_MEMALIGN)
+	void *r;
+
+	if (posix_memalign(&r, align, size) != 0)
+		return NULL;
+	return r;	
+#elif defined(HAVE_DECL_MEMALIGN)
+	return memalign(align, size);
+#else
+#error "Require an aligning malloc"
+#endif
+}
+#endif
+
+static void
+throwOutOfMemoryError(JNIEnv *env, const char *msg) {
+	jclass jc = (*env)->FindClass(env, "java/lang/OutOfMemoryError");
+
+	if (jc)
+		(*env)->ThrowNew(env, jc, msg);
+}
+
+JNIEXPORT jlong JNICALL Java_nz_ac_waikato_ffts_FFTS_complex_11d
+(JNIEnv *env, jclass jc, jint N, jint sign) {
+	ffts_plan_t *plan;
+
+	plan = ffts_init_1d(N, sign);
+	if (!plan)
+		throwOutOfMemoryError(env, NULL);
+
+	return (jlong)plan;
+}
+
+JNIEXPORT jlong JNICALL Java_nz_ac_waikato_ffts_FFTS_complex_12d
+(JNIEnv *env, jclass jc, jint N1, jint N2, jint sign) {
+	ffts_plan_t *plan;
+
+	plan = ffts_init_2d(N1, N2, sign);
+	if (!plan)
+		throwOutOfMemoryError(env, NULL);
+
+	return (jlong)plan;
+}
+
+JNIEXPORT jlong JNICALL Java_nz_ac_waikato_ffts_FFTS_complex_1nd
+(JNIEnv *env, jclass jc, jintArray jNs, jint sign) {
+	ffts_plan_t *plan;
+	int n = (*env)->GetArrayLength(env, jNs);
+	int *cNs;
+	size_t *Ns;
+	int i;
+
+	// Needs to convert java int array to size_t array
+	// Get the int elements and conver to C type
+	Ns = alloca(sizeof(*Ns) * n);
+	cNs = alloca(sizeof(int) * n);
+	(*env)->GetIntArrayRegion(env, jNs, 0, n, cNs);
+	for (i=0;i<n;i++)
+		Ns[i] = cNs[i];
+
+	plan = ffts_init_nd(n, Ns, sign);
+	if (!plan)
+		throwOutOfMemoryError(env, NULL);
+
+	return (jlong)plan;
+}
+
+JNIEXPORT jlong JNICALL Java_nz_ac_waikato_ffts_FFTS_real_11d
+(JNIEnv *env, jclass jc, jint N, jint sign) {
+	ffts_plan_t *plan;
+
+	plan = ffts_init_1d_real(N, sign);
+	if (!plan)
+		throwOutOfMemoryError(env, NULL);
+
+	return (jlong)plan;
+}
+
+JNIEXPORT jlong JNICALL Java_nz_ac_waikato_ffts_FFTS_real_12d
+(JNIEnv *env, jclass jc, jint N1, jint N2, jint sign) {
+	ffts_plan_t *plan;
+
+	plan = ffts_init_2d_real(N1, N2, sign);
+	if (!plan)
+		throwOutOfMemoryError(env, NULL);
+
+	return (jlong)plan;
+}
+
+JNIEXPORT jlong JNICALL Java_nz_ac_waikato_ffts_FFTS_real_1nd
+(JNIEnv *env, jclass jc, jintArray jNs, jint sign) {
+	ffts_plan_t *plan;
+	int n = (*env)->GetArrayLength(env, jNs);
+	int *cNs;
+	size_t *Ns;
+	int i;
+
+	// Needs to convert java int array to size_t array
+	// Get the int elements and conver to C type
+	Ns = alloca(sizeof(*Ns) * n);
+	cNs = alloca(sizeof(int) * n);
+	(*env)->GetIntArrayRegion(env, jNs, 0, n, cNs);
+	for (i=0;i<n;i++)
+		Ns[i] = cNs[i];
+
+	plan = ffts_init_nd_real(n, Ns, sign);
+	if (!plan)
+		throwOutOfMemoryError(env, NULL);
+
+	return (jlong)plan;
+}
+
+JNIEXPORT void JNICALL Java_nz_ac_waikato_ffts_FFTS_execute__JJ_3FI_3FI
+(JNIEnv *env, jclass jc, jlong p, jlong size, jfloatArray jsrc, jint soff, jfloatArray jdst, jint doff) {
+	ffts_plan_t *plan = (ffts_plan_t *)p;
+
+	// TODO: check performance on android/arm
+#ifdef NEEDS_ALIGNED
+	// On oracle jvm this is faster than GetFloatArrayElements()
+	void *src, *dst;
+
+	src = xmemalign(64, size * 4);
+	if (!src) {
+		throwOutOfMemoryError(env, NULL);
+		return;
+	}
+	dst = xmemalign(64, size * 4);
+	if (!dst) {
+		free(src);
+		throwOutOfMemoryError(env, NULL);
+		return;
+	}
+
+	(*env)->GetFloatArrayRegion(env, jsrc, 0, size, src + soff);
+	ffts_execute(plan, src, dst);
+	(*env)->SetFloatArrayRegion(env, jdst, 0, size, dst + doff);
+
+	free(dst);
+	free(src);
+#else
+	// This is the fastest with oracle jvm, but doesn't work with sse ...
+	void *src = (*env)->GetPrimitiveArrayCritical(env, jsrc, NULL);
+	void *dst = (*env)->GetPrimitiveArrayCritical(env, jdst, NULL);
+
+	ffts_execute(plan, src + soff, dst + doff);
+
+	(*env)->ReleasePrimitiveArrayCritical(env, jdst, dst, 0);
+	(*env)->ReleasePrimitiveArrayCritical(env, jsrc, src, 0);
+#endif
+
+#if 0
+	// This is the slowest
+	void *src = (*env)->GetFloatArrayElements(env, jsrc, NULL);
+	void *dst = (*env)->GetFloatArrayElements(env, jdst, NULL);
+
+	ffts_execute(plan, src + soff, dst + doff);
+
+	(*env)->ReleaseFloatArrayElements(env, jdst, dst, 0);
+	(*env)->ReleaseFloatArrayElements(env, jsrc, src, 0);
+#endif
+}
+
+JNIEXPORT void JNICALL Java_nz_ac_waikato_ffts_FFTS_execute__JJLjava_nio_FloatBuffer_2Ljava_nio_FloatBuffer_2
+(JNIEnv *env, jclass jc, jlong p, jlong size, jobject jsrc, jobject jdst) {
+	ffts_plan_t *plan = (ffts_plan_t *)p;
+	void *src = (*env)->GetDirectBufferAddress(env, jsrc);
+	void *dst = (*env)->GetDirectBufferAddress(env, jdst);
+
+	// Bounds checking etc is in java side.
+
+	ffts_execute(plan, src, dst);
+}
+
+JNIEXPORT void JNICALL Java_nz_ac_waikato_ffts_FFTS_free
+(JNIEnv *env, jclass jc, jlong p) {
+	ffts_plan_t *plan = (ffts_plan_t *)p;
+
+	ffts_free(plan);
+}
diff --git a/java/src/nz/ac/waikato/ffts/FFTS.java b/java/src/nz/ac/waikato/ffts/FFTS.java
new file mode 100644
index 0000000..62cbbac
--- /dev/null
+++ b/java/src/nz/ac/waikato/ffts/FFTS.java
@@ -0,0 +1,203 @@
+/*
+ *  This file is part of FFTS -- The Fastest Fourier Transform in the South
+ *
+ * Copyright (c) 2013, Michael Zucchi <notzed@gmail.com>
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ *   * Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ *   * Neither the name of the organization nor the
+ *     names of its contributors may be used to endorse or promote products
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL ANTHONY M. BLAKE BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package nz.ac.waikato.ffts;
+
+import java.nio.FloatBuffer;
+
+/**
+ * A java wrapper for ffts plans.
+ *
+ * Plans must currently be freed explicitly.
+ *
+ * @author notzed
+ */
+public class FFTS {
+
+	/**
+	 * C pointer
+	 */
+	private long p;
+	/**
+	 * Minimum size of input
+	 */
+	final protected long inSize;
+	/**
+	 * Minimum size of output
+	 */
+	final protected long outSize;
+
+	private FFTS(long p, long inSize) {
+		this(p, inSize, inSize);
+	}
+
+	private FFTS(long p, long inSize, long outSize) {
+		this.p = p;
+		this.inSize = inSize;
+		this.outSize = inSize;
+	}
+	/**
+	 * The sign to use for a forward transform.
+	 */
+	public static final int FORWARD = 1;
+	/**
+	 * The sign to use for a backward transform.
+	 */
+	public static final int BACKWARD = -1;
+
+	/**
+	 * Create a FFT plan for a 1-dimensional complex transform.
+	 *
+	 * The src and dst parameters to execute() use complex data.
+	 *
+	 * @param sign The direction of the transform.
+	 * @param N The size of the transform.
+	 * @return
+	 */
+	public static FFTS complex(int sign, int N) {
+		return new FFTS(complex_1d(N, sign), N * 2);
+	}
+
+	/**
+	 * Create a FFT plan for a 2-dimensional complex transform.
+	 * @param sign The direction of the transform.
+	 * @param N1 The size of the transform.
+	 * @param N2 The size of the transform.
+	 * @return
+	 */
+	public static FFTS complex(int sign, int N1, int N2) {
+		return new FFTS(complex_2d(N1, N2, sign), N1 * N2 * 2);
+	}
+
+	public static FFTS complex(int sign, int... Ns) {
+		return new FFTS(complex_nd(Ns, sign), size(Ns) * 2);
+	}
+
+	public static FFTS real(int sign, int N) {
+		return new FFTS(real_1d(N, sign), sign == FORWARD ? N : (N / 2 + 1) * 2, sign == FORWARD ? (N / 2 + 1) * 2 : N);
+	}
+
+	public static FFTS real(int sign, int N1, int N2) {
+		return new FFTS(real_2d(N1, N2, sign), sign == FORWARD ? N1 * N2 : (N1 * N2 / 2 + 1) * 2, sign == FORWARD ? (N1 * N2 / 2 + 1) * 2 : N1 * N2);
+	}
+
+	public static FFTS real(int sign, int... Ns) {
+		return new FFTS(real_nd(Ns, sign), sign == FORWARD ? size(Ns) : (size(Ns) / 2 + 1) * 2, sign == FORWARD ? (size(Ns) / 2 + 1) * 2 : size(Ns));
+	}
+
+	/**
+	 * Execute this plan with the given array data.
+	 *
+	 * @param src
+	 * @param dst
+	 */
+	public void execute(float[] src, float[] dst) {
+		execute(src, 0, dst, 0);
+	}
+
+	/**
+	 * Execute this plan with the given array data.
+	 * @param src
+	 * @param soff Start offset into src array.
+	 * @param dst
+	 * @param doff Start offset into dst array.
+	 */
+	public void execute(float[] src, int soff, float[] dst, int doff) {
+		if (src.length - soff < inSize || dst.length - doff < outSize)
+			throw new ArrayIndexOutOfBoundsException();
+		if (p == 0)
+			throw new NullPointerException();
+
+		execute(p, inSize, src, soff, dst, doff);
+	}
+
+	/**
+	 * Execute this plan with the given nio buffers.  The bufffers
+	 * must be derived from direct buffers.
+	 *
+	 * The buffer position and limits are ignored.
+	 *
+	 * @param src
+	 * @param dst
+	 */
+	public void execute(FloatBuffer src, FloatBuffer dst) {
+		if (src.capacity() < inSize || dst.capacity() < outSize)
+			throw new ArrayIndexOutOfBoundsException();
+		if (p == 0)
+			throw new NullPointerException();
+
+		execute(p, inSize, src, dst);
+	}
+
+	/**
+	 * Free the plan.
+	 */
+	public void free() {
+		if (p == 0)
+			throw new NullPointerException();
+		free(p);
+	}
+
+	/*
+	 * Calculate the number of elements required to store one
+	 * set of n-dimensional data.
+	 */
+	protected static long size(int[] Ns) {
+		long s = Ns[0];
+		for (int i = 1; i < Ns.length; i++)
+			s *= Ns[i];
+		return s;
+	}
+
+	static {
+		System.loadLibrary("ffts-jni");
+	}
+
+	/*
+	 * Native interface
+	 */
+	protected static native long complex_1d(int N, int sign);
+
+	protected static native long complex_2d(int N1, int N2, int sign);
+
+	protected static native long complex_nd(int[] Ns, int sign);
+
+	protected static native long real_1d(int N, int sign);
+
+	protected static native long real_2d(int N1, int N2, int sign);
+
+	protected static native long real_nd(int[] Ns, int sign);
+
+	protected static native void execute(long p, long size, float[] src, int soff, float[] dst, int doff);
+
+	protected static native void execute(long p, long size, FloatBuffer src, FloatBuffer dst);
+
+	protected static native void free(long p);
+}
diff --git a/m4/ax_check_class.m4 b/m4/ax_check_class.m4
new file mode 100644
index 0000000..098aa77
--- /dev/null
+++ b/m4/ax_check_class.m4
@@ -0,0 +1,144 @@
+# ===========================================================================
+#      http://www.gnu.org/software/autoconf-archive/ax_check_class.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AX_CHECK_CLASS
+#
+# DESCRIPTION
+#
+#   AX_CHECK_CLASS tests the existence of a given Java class, either in a
+#   jar or in a '.class' file.
+#
+#   *Warning*: its success or failure can depend on a proper setting of the
+#   CLASSPATH env. variable.
+#
+#   Note: This is part of the set of autoconf M4 macros for Java programs.
+#   It is VERY IMPORTANT that you download the whole set, some macros depend
+#   on other. Unfortunately, the autoconf archive does not support the
+#   concept of set of macros, so I had to break it for submission. The
+#   general documentation, as well as the sample configure.in, is included
+#   in the AX_PROG_JAVA macro.
+#
+# LICENSE
+#
+#   Copyright (c) 2008 Stephane Bortzmeyer <bortzmeyer@pasteur.fr>
+#
+#   This program is free software; you can redistribute it and/or modify it
+#   under the terms of the GNU General Public License as published by the
+#   Free Software Foundation; either version 2 of the License, or (at your
+#   option) any later version.
+#
+#   This program is distributed in the hope that it will be useful, but
+#   WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
+#   Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License along
+#   with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+#   As a special exception, the respective Autoconf Macro's copyright owner
+#   gives unlimited permission to copy, distribute and modify the configure
+#   scripts that are the output of Autoconf when processing the Macro. You
+#   need not follow the terms of the GNU General Public License when using
+#   or distributing such scripts, even though portions of the text of the
+#   Macro appear in them. The GNU General Public License (GPL) does govern
+#   all other use of the material that constitutes the Autoconf Macro.
+#
+#   This special exception to the GPL applies to versions of the Autoconf
+#   Macro released by the Autoconf Archive. When you make and distribute a
+#   modified version of the Autoconf Macro, you may extend this special
+#   exception to the GPL to apply to your modified version as well.
+
+#serial 7
+
+AU_ALIAS([AC_CHECK_CLASS], [AX_CHECK_CLASS])
+AC_DEFUN([AX_CHECK_CLASS],[
+AC_REQUIRE([AX_PROG_JAVA])
+ac_var_name=`echo $1 | sed 's/\./_/g'`
+dnl Normaly I'd use a AC_CACHE_CHECK here but since the variable name is
+dnl dynamic I need an extra level of extraction
+AC_MSG_CHECKING([for $1 class])
+AC_CACHE_VAL(ax_cv_class_$ac_var_name, [
+if test x$ac_cv_prog_uudecode_base64 = xyes; then
+dnl /**
+dnl  * Test.java: used to test dynamicaly if a class exists.
+dnl  */
+dnl public class Test
+dnl {
+dnl
+dnl public static void
+dnl main( String[] argv )
+dnl {
+dnl     Class lib;
+dnl     if (argv.length < 1)
+dnl      {
+dnl             System.err.println ("Missing argument");
+dnl             System.exit (77);
+dnl      }
+dnl     try
+dnl      {
+dnl             lib = Class.forName (argv[0]);
+dnl      }
+dnl     catch (ClassNotFoundException e)
+dnl      {
+dnl             System.exit (1);
+dnl      }
+dnl     lib = null;
+dnl     System.exit (0);
+dnl }
+dnl
+dnl }
+cat << \EOF > Test.uue
+begin-base64 644 Test.class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+====
+EOF
+                if $UUDECODE Test.uue; then
+                        :
+                else
+                        echo "configure: __oline__: uudecode had trouble decoding base 64 file 'Test.uue'" >&AS_MESSAGE_LOG_FD
+                        echo "configure: failed file was:" >&AS_MESSAGE_LOG_FD
+                        cat Test.uue >&AS_MESSAGE_LOG_FD
+                        ac_cv_prog_uudecode_base64=no
+                fi
+        rm -f Test.uue
+        if AC_TRY_COMMAND($JAVA $JAVAFLAGS Test $1) >/dev/null 2>&1; then
+                eval "ac_cv_class_$ac_var_name=yes"
+        else
+                eval "ac_cv_class_$ac_var_name=no"
+        fi
+        rm -f Test.class
+else
+        AX_TRY_COMPILE_JAVA([$1], , [eval "ac_cv_class_$ac_var_name=yes"],
+                [eval "ac_cv_class_$ac_var_name=no"])
+fi
+eval "ac_var_val=$`eval echo ac_cv_class_$ac_var_name`"
+eval "HAVE_$ac_var_name=$`echo ac_cv_class_$ac_var_val`"
+HAVE_LAST_CLASS=$ac_var_val
+if test x$ac_var_val = xyes; then
+        ifelse([$2], , :, [$2])
+else
+        ifelse([$3], , :, [$3])
+fi
+])
+dnl for some reason the above statment didn't fall though here?
+dnl do scripts have variable scoping?
+eval "ac_var_val=$`eval echo ac_cv_class_$ac_var_name`"
+AC_MSG_RESULT($ac_var_val)
+])
diff --git a/m4/ax_check_classpath.m4 b/m4/ax_check_classpath.m4
new file mode 100644
index 0000000..3c9081a
--- /dev/null
+++ b/m4/ax_check_classpath.m4
@@ -0,0 +1,60 @@
+# ===========================================================================
+#    http://www.gnu.org/software/autoconf-archive/ax_check_classpath.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AX_CHECK_CLASSPATH
+#
+# DESCRIPTION
+#
+#   AX_CHECK_CLASSPATH just displays the CLASSPATH, for the edification of
+#   the user.
+#
+#   Note: This is part of the set of autoconf M4 macros for Java programs.
+#   It is VERY IMPORTANT that you download the whole set, some macros depend
+#   on other. Unfortunately, the autoconf archive does not support the
+#   concept of set of macros, so I had to break it for submission. The
+#   general documentation, as well as the sample configure.in, is included
+#   in the AX_PROG_JAVA macro.
+#
+# LICENSE
+#
+#   Copyright (c) 2008 Stephane Bortzmeyer <bortzmeyer@pasteur.fr>
+#
+#   This program is free software; you can redistribute it and/or modify it
+#   under the terms of the GNU General Public License as published by the
+#   Free Software Foundation; either version 2 of the License, or (at your
+#   option) any later version.
+#
+#   This program is distributed in the hope that it will be useful, but
+#   WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
+#   Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License along
+#   with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+#   As a special exception, the respective Autoconf Macro's copyright owner
+#   gives unlimited permission to copy, distribute and modify the configure
+#   scripts that are the output of Autoconf when processing the Macro. You
+#   need not follow the terms of the GNU General Public License when using
+#   or distributing such scripts, even though portions of the text of the
+#   Macro appear in them. The GNU General Public License (GPL) does govern
+#   all other use of the material that constitutes the Autoconf Macro.
+#
+#   This special exception to the GPL applies to versions of the Autoconf
+#   Macro released by the Autoconf Archive. When you make and distribute a
+#   modified version of the Autoconf Macro, you may extend this special
+#   exception to the GPL to apply to your modified version as well.
+
+#serial 5
+
+AU_ALIAS([AC_CHECK_CLASSPATH], [AX_CHECK_CLASSPATH])
+AC_DEFUN([AX_CHECK_CLASSPATH],[
+if test "x$CLASSPATH" = x; then
+        echo "You have no CLASSPATH, I hope it is good"
+else
+        echo "You have CLASSPATH $CLASSPATH, hope it is correct"
+fi
+])
diff --git a/m4/ax_check_java_home.m4 b/m4/ax_check_java_home.m4
new file mode 100644
index 0000000..cfe8f58
--- /dev/null
+++ b/m4/ax_check_java_home.m4
@@ -0,0 +1,80 @@
+# ===========================================================================
+#    http://www.gnu.org/software/autoconf-archive/ax_check_java_home.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AX_CHECK_JAVA_HOME
+#
+# DESCRIPTION
+#
+#   Check for Sun Java (JDK / JRE) installation, where the 'java' VM is in.
+#   If found, set environment variable JAVA_HOME = Java installation home,
+#   else left JAVA_HOME untouch, which in most case means JAVA_HOME is
+#   empty.
+#
+# LICENSE
+#
+#   Copyright (c) 2008 Gleen Salmon <gleensalmon@yahoo.com>
+#
+#   This program is free software; you can redistribute it and/or modify it
+#   under the terms of the GNU General Public License as published by the
+#   Free Software Foundation; either version 2 of the License, or (at your
+#   option) any later version.
+#
+#   This program is distributed in the hope that it will be useful, but
+#   WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
+#   Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License along
+#   with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+#   As a special exception, the respective Autoconf Macro's copyright owner
+#   gives unlimited permission to copy, distribute and modify the configure
+#   scripts that are the output of Autoconf when processing the Macro. You
+#   need not follow the terms of the GNU General Public License when using
+#   or distributing such scripts, even though portions of the text of the
+#   Macro appear in them. The GNU General Public License (GPL) does govern
+#   all other use of the material that constitutes the Autoconf Macro.
+#
+#   This special exception to the GPL applies to versions of the Autoconf
+#   Macro released by the Autoconf Archive. When you make and distribute a
+#   modified version of the Autoconf Macro, you may extend this special
+#   exception to the GPL to apply to your modified version as well.
+
+#serial 6
+
+AU_ALIAS([AC_CHECK_JAVA_HOME], [AX_CHECK_JAVA_HOME])
+
+AC_DEFUN([AX_CHECK_JAVA_HOME],
+[AC_MSG_CHECKING([for JAVA_HOME])
+# We used a fake loop so that we can use "break" to exit when the result
+# is found.
+while true
+do
+  # If the user defined JAVA_HOME, don't touch it.
+  test "${JAVA_HOME+set}" = set && break
+
+  # On Mac OS X 10.5 and following, run /usr/libexec/java_home to get
+  # the value of JAVA_HOME to use.
+  # (http://developer.apple.com/library/mac/#qa/qa2001/qa1170.html).
+  JAVA_HOME=`/usr/libexec/java_home 2>/dev/null`
+  test x"$JAVA_HOME" != x && break
+
+  # See if we can find the java executable, and compute from there.
+  TRY_JAVA_HOME=`ls -dr /usr/java/* 2> /dev/null | head -n 1`
+  if test x$TRY_JAVA_HOME != x; then
+    PATH=$PATH:$TRY_JAVA_HOME/bin
+  fi
+  AC_PATH_PROG([JAVA_PATH_NAME], [java])
+  if test "x$JAVA_PATH_NAME" != x; then
+    JAVA_HOME=`echo $JAVA_PATH_NAME | sed "s/\(.*\)[[/]]bin[[/]]java.*/\1/"`
+    break
+  fi
+
+  AC_MSG_NOTICE([Could not compute JAVA_HOME])
+  break
+done
+AC_MSG_RESULT([$JAVA_HOME])
+])
diff --git a/m4/ax_check_java_plugin.m4 b/m4/ax_check_java_plugin.m4
new file mode 100644
index 0000000..34f3dc6
--- /dev/null
+++ b/m4/ax_check_java_plugin.m4
@@ -0,0 +1,101 @@
+# ===========================================================================
+#   http://www.gnu.org/software/autoconf-archive/ax_check_java_plugin.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AX_CHECK_JAVA_PLUGIN(<shell-variable>)
+#
+# DESCRIPTION
+#
+#   This macro sets <shell-variable> to empty on failure and to a compatible
+#   version of plugin.jar otherwise. Directories searched are /usr/java/*
+#   and /usr/local/java/*, which are assumed to be j{dk,re} installations.
+#   Apply the shell variable as you see fit. If sun changes things so
+#   <jre>/lib/plugin.jar is not the magic file it will stop working.
+#
+#   This macro assumes that unzip, zipinfo or pkzipc is avialable (and can
+#   list the contents of the jar archive). The first two are assumed to work
+#   similarly enough to the infozip versisonms. The pkzipc version is
+#   assumed to work if I undertstand the documentation on pkware's site but
+#   YMMV. I do not have access to pwkware's version to test it.
+#
+# LICENSE
+#
+#   Copyright (c) 2008 Duncan Simpson <dps@simpson.demon.co.uk>
+#
+#   This program is free software; you can redistribute it and/or modify it
+#   under the terms of the GNU General Public License as published by the
+#   Free Software Foundation; either version 2 of the License, or (at your
+#   option) any later version.
+#
+#   This program is distributed in the hope that it will be useful, but
+#   WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
+#   Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License along
+#   with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+#   As a special exception, the respective Autoconf Macro's copyright owner
+#   gives unlimited permission to copy, distribute and modify the configure
+#   scripts that are the output of Autoconf when processing the Macro. You
+#   need not follow the terms of the GNU General Public License when using
+#   or distributing such scripts, even though portions of the text of the
+#   Macro appear in them. The GNU General Public License (GPL) does govern
+#   all other use of the material that constitutes the Autoconf Macro.
+#
+#   This special exception to the GPL applies to versions of the Autoconf
+#   Macro released by the Autoconf Archive. When you make and distribute a
+#   modified version of the Autoconf Macro, you may extend this special
+#   exception to the GPL to apply to your modified version as well.
+
+#serial 6
+
+AU_ALIAS([DPS_CHECK_PLUGIN], [AX_CHECK_JAVA_PLUGIN])
+AC_DEFUN([AX_CHECK_JAVA_PLUGIN],
+[AC_REQUIRE([AC_PROG_AWK])
+AC_REQUIRE([AC_PROG_FGREP])
+AC_CHECK_PROG(ZIPINFO,[zipinfo unzip pkzipc])
+AC_MSG_CHECKING([for the java plugin])
+case "x$ZIPINFO" in
+[*/zipinfo)]
+	zipinf="zipinfo -1" ;;
+[*/unzip)]
+	zipinf="unzip -l";;
+[*/pkzipc)]
+	ziping="unzipc -view";;
+[x*)]
+	AC_MSG_RESULT([skiped, none of zipinfo, unzip and pkzipc found])
+	AC_SUBST($1,[])
+	zipinf="";;
+esac
+if test "x$zipinf" != "x"; then
+jplugin=""
+for jhome in `ls -dr /usr/java/* /usr/local/java/* 2> /dev/null`; do
+for jfile in lib/plugin.jar jre/lib/plugin.jar; do
+if test "x$jplugin" = "x" && test -f "$jhome/$jfile"; then
+eval "$zipinf $jhome/$jfile | $AWK '{ print \$NF; }' | $FGREP netscape/javascript/JSObject" >/dev/null 2>/dev/null
+if test $? -eq 0; then
+dnl Some version of gcj (and javac) refuse to work with some files
+dnl that pass this test. To stop this problem make sure that the compiler
+dnl still works with this jar file in the classpath
+cat << \EOF > Test.java
+/* [#]line __oline__ "configure" */
+public class Test {
+}
+EOF
+if eval "$JAVAC -classpath $jhome/$jfile Test.java 2>/dev/null >/dev/null" && test -f Test.class; then
+jplugin="$jhome/$jfile"
+fi
+rm -f Test.java Test.class
+fi; fi; done; done
+if test "x$jplugin" != "x"; then
+AC_SUBST($1,$jplugin)
+AC_MSG_RESULT($jplugin)
+else
+AC_MSG_RESULT([java plugin not found])
+AC_SUBST($1,[])
+fi
+fi
+])
diff --git a/m4/ax_java_check_class.m4 b/m4/ax_java_check_class.m4
new file mode 100644
index 0000000..bd5052a
--- /dev/null
+++ b/m4/ax_java_check_class.m4
@@ -0,0 +1,85 @@
+# ===========================================================================
+#    http://www.gnu.org/software/autoconf-archive/ax_java_check_class.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AX_JAVA_CHECK_CLASS(<class>,<action-if-found>,<action-if-not-found>)
+#
+# DESCRIPTION
+#
+#   Test if a Java class is available. Based on AX_PROG_JAVAC_WORKS. This
+#   version uses a cache variable which is both compiler, options and
+#   classpath dependent (so if you switch from javac to gcj it correctly
+#   notices and redoes the test).
+#
+#   The macro tries to compile a minimal program importing <class>. Some
+#   newer compilers moan about the failure to use this but fail or produce a
+#   class file anyway. All moaing is sunk to /dev/null since I only wanted
+#   to know if the class could be imported. This is a recommended followup
+#   to AX_CHECK_JAVA_PLUGIN with classpath appropriately adjusted.
+#
+# LICENSE
+#
+#   Copyright (c) 2008 Duncan Simpson <dps@simpson.demon.co.uk>
+#
+#   This program is free software; you can redistribute it and/or modify it
+#   under the terms of the GNU General Public License as published by the
+#   Free Software Foundation; either version 2 of the License, or (at your
+#   option) any later version.
+#
+#   This program is distributed in the hope that it will be useful, but
+#   WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
+#   Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License along
+#   with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+#   As a special exception, the respective Autoconf Macro's copyright owner
+#   gives unlimited permission to copy, distribute and modify the configure
+#   scripts that are the output of Autoconf when processing the Macro. You
+#   need not follow the terms of the GNU General Public License when using
+#   or distributing such scripts, even though portions of the text of the
+#   Macro appear in them. The GNU General Public License (GPL) does govern
+#   all other use of the material that constitutes the Autoconf Macro.
+#
+#   This special exception to the GPL applies to versions of the Autoconf
+#   Macro released by the Autoconf Archive. When you make and distribute a
+#   modified version of the Autoconf Macro, you may extend this special
+#   exception to the GPL to apply to your modified version as well.
+
+#serial 8
+
+AU_ALIAS([DPS_JAVA_CHECK_CLASS], [AX_JAVA_CHECK_CLASS])
+AC_DEFUN([AX_JAVA_CHECK_CLASS],[
+m4_define([cache_val],[m4_translit(ax_cv_have_java_class_$1, " ." ,"__")])
+if test "x$CLASSPATH" != "x"; then
+xtra=" with classpath ${CLASSPATH}"
+xopts=`echo ${CLASSPATH} | ${SED} 's/^ *://'`
+xopts="-classpath $xopts"
+else xtra=""; xopts=""; fi
+cache_var="cache_val"AS_TR_SH([_Jc_${JAVAC}_Cp_${CLASSPATH}])
+AC_CACHE_CHECK([if the $1 class is avialable$xtra], [$cache_var], [
+JAVA_TEST=Test.java
+CLASS_TEST=Test.class
+cat << \EOF > $JAVA_TEST
+/* [#]xline __oline__ "configure" */
+import $1;
+public class Test {
+}
+EOF
+if AC_TRY_COMMAND($JAVAC $JAVACFLAGS $xopts $JAVA_TEST) >/dev/null 2>&1; then
+  eval "${cache_var}=yes"
+else
+  eval "${cache_var}=no"
+  echo "configure: failed program was:" >&AS_MESSAGE_LOG_FD
+  cat $JAVA_TEST >&AS_MESSAGE_LOG_FD
+fi
+rm -f $JAVA_TEST $CLASS_TEST
+])
+if eval 'test "x$'${cache_var}'" = "xyes"'; then
+$2
+true; else
+$3
+false; fi])
diff --git a/m4/ax_java_options.m4 b/m4/ax_java_options.m4
new file mode 100644
index 0000000..36c10d9
--- /dev/null
+++ b/m4/ax_java_options.m4
@@ -0,0 +1,48 @@
+# ===========================================================================
+#      http://www.gnu.org/software/autoconf-archive/ax_java_options.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AX_JAVA_OPTIONS
+#
+# DESCRIPTION
+#
+#   AX_JAVA_OPTIONS adds configure command line options used for Java m4
+#   macros. This Macro is optional.
+#
+#   Note: This is part of the set of autoconf M4 macros for Java programs.
+#   It is VERY IMPORTANT that you download the whole set, some macros depend
+#   on other. Unfortunately, the autoconf archive does not support the
+#   concept of set of macros, so I had to break it for submission. The
+#   general documentation, as well as the sample configure.in, is included
+#   in the AX_PROG_JAVA macro.
+#
+# LICENSE
+#
+#   Copyright (c) 2008 Devin Weaver <ktohg@tritarget.com>
+#
+#   Copying and distribution of this file, with or without modification, are
+#   permitted in any medium without royalty provided the copyright notice
+#   and this notice are preserved. This file is offered as-is, without any
+#   warranty.
+
+#serial 6
+
+AU_ALIAS([AC_JAVA_OPTIONS], [AX_JAVA_OPTIONS])
+AC_DEFUN([AX_JAVA_OPTIONS],[
+AC_ARG_WITH(java-prefix,
+                        [  --with-java-prefix=PFX  prefix where Java runtime is installed (optional)])
+AC_ARG_WITH(javac-flags,
+                        [  --with-javac-flags=FLAGS flags to pass to the Java compiler (optional)])
+AC_ARG_WITH(java-flags,
+                        [  --with-java-flags=FLAGS flags to pass to the Java VM (optional)])
+JAVAPREFIX=$with_java_prefix
+JAVACFLAGS=$with_javac_flags
+JAVAFLAGS=$with_java_flags
+AC_SUBST(JAVAPREFIX)dnl
+AC_SUBST(JAVACFLAGS)dnl
+AC_SUBST(JAVAFLAGS)dnl
+AC_SUBST(JAVA)dnl
+AC_SUBST(JAVAC)dnl
+])
diff --git a/m4/ax_jni_include_dir.m4 b/m4/ax_jni_include_dir.m4
new file mode 100644
index 0000000..5769895
--- /dev/null
+++ b/m4/ax_jni_include_dir.m4
@@ -0,0 +1,120 @@
+# ===========================================================================
+#    http://www.gnu.org/software/autoconf-archive/ax_jni_include_dir.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AX_JNI_INCLUDE_DIR
+#
+# DESCRIPTION
+#
+#   AX_JNI_INCLUDE_DIR finds include directories needed for compiling
+#   programs using the JNI interface.
+#
+#   JNI include directories are usually in the java distribution This is
+#   deduced from the value of JAVAC. When this macro completes, a list of
+#   directories is left in the variable JNI_INCLUDE_DIRS.
+#
+#   Example usage follows:
+#
+#     AX_JNI_INCLUDE_DIR
+#
+#     for JNI_INCLUDE_DIR in $JNI_INCLUDE_DIRS
+#     do
+#             CPPFLAGS="$CPPFLAGS -I$JNI_INCLUDE_DIR"
+#     done
+#
+#   If you want to force a specific compiler:
+#
+#   - at the configure.in level, set JAVAC=yourcompiler before calling
+#   AX_JNI_INCLUDE_DIR
+#
+#   - at the configure level, setenv JAVAC
+#
+#   Note: This macro can work with the autoconf M4 macros for Java programs.
+#   This particular macro is not part of the original set of macros.
+#
+# LICENSE
+#
+#   Copyright (c) 2008 Don Anderson <dda@sleepycat.com>
+#
+#   Copying and distribution of this file, with or without modification, are
+#   permitted in any medium without royalty provided the copyright notice
+#   and this notice are preserved. This file is offered as-is, without any
+#   warranty.
+
+#serial 8
+
+AU_ALIAS([AC_JNI_INCLUDE_DIR], [AX_JNI_INCLUDE_DIR])
+AC_DEFUN([AX_JNI_INCLUDE_DIR],[
+
+JNI_INCLUDE_DIRS=""
+
+test "x$JAVAC" = x && AC_MSG_ERROR(['\$JAVAC' undefined])
+AC_PATH_PROG([_ACJNI_JAVAC], [$JAVAC], [no])
+test "x$_ACJNI_JAVAC" = xno && AC_MSG_ERROR([$JAVAC could not be found in path])
+
+_ACJNI_FOLLOW_SYMLINKS("$_ACJNI_JAVAC")
+_JTOPDIR=`echo "$_ACJNI_FOLLOWED" | sed -e 's://*:/:g' -e 's:/[[^/]]*$::'`
+case "$host_os" in
+        darwin*)        _JTOPDIR=`echo "$_JTOPDIR" | sed -e 's:/[[^/]]*$::'`
+                        _JINC="$_JTOPDIR/Headers";;
+        *)              _JINC="$_JTOPDIR/include";;
+esac
+_AS_ECHO_LOG([_JTOPDIR=$_JTOPDIR])
+_AS_ECHO_LOG([_JINC=$_JINC])
+
+# On Mac OS X 10.6.4, jni.h is a symlink:
+# /System/Library/Frameworks/JavaVM.framework/Versions/Current/Headers/jni.h
+# -> ../../CurrentJDK/Headers/jni.h.
+if test -f "$_JINC/jni.h" || test -L "$_JINC/jni.h"; then
+        JNI_INCLUDE_DIRS="$JNI_INCLUDE_DIRS $_JINC"
+else
+        _JTOPDIR=`echo "$_JTOPDIR" | sed -e 's:/[[^/]]*$::'`
+        if test -f "$_JTOPDIR/include/jni.h"; then
+                JNI_INCLUDE_DIRS="$JNI_INCLUDE_DIRS $_JTOPDIR/include"
+        else
+                AC_MSG_ERROR([cannot find java include files])
+        fi
+fi
+
+# get the likely subdirectories for system specific java includes
+case "$host_os" in
+bsdi*)          _JNI_INC_SUBDIRS="bsdos";;
+freebsd*)       _JNI_INC_SUBDIRS="freebsd";;
+linux*)         _JNI_INC_SUBDIRS="linux genunix";;
+osf*)           _JNI_INC_SUBDIRS="alpha";;
+solaris*)       _JNI_INC_SUBDIRS="solaris";;
+mingw*)		_JNI_INC_SUBDIRS="win32";;
+cygwin*)	_JNI_INC_SUBDIRS="win32";;
+*)              _JNI_INC_SUBDIRS="genunix";;
+esac
+
+# add any subdirectories that are present
+for JINCSUBDIR in $_JNI_INC_SUBDIRS
+do
+    if test -d "$_JTOPDIR/include/$JINCSUBDIR"; then
+         JNI_INCLUDE_DIRS="$JNI_INCLUDE_DIRS $_JTOPDIR/include/$JINCSUBDIR"
+    fi
+done
+])
+
+# _ACJNI_FOLLOW_SYMLINKS <path>
+# Follows symbolic links on <path>,
+# finally setting variable _ACJNI_FOLLOWED
+# ----------------------------------------
+AC_DEFUN([_ACJNI_FOLLOW_SYMLINKS],[
+# find the include directory relative to the javac executable
+_cur="$1"
+while ls -ld "$_cur" 2>/dev/null | grep " -> " >/dev/null; do
+        AC_MSG_CHECKING([symlink for $_cur])
+        _slink=`ls -ld "$_cur" | sed 's/.* -> //'`
+        case "$_slink" in
+        /*) _cur="$_slink";;
+        # 'X' avoids triggering unwanted echo options.
+        *) _cur=`echo "X$_cur" | sed -e 's/^X//' -e 's:[[^/]]*$::'`"$_slink";;
+        esac
+        AC_MSG_RESULT([$_cur])
+done
+_ACJNI_FOLLOWED="$_cur"
+])# _ACJNI
diff --git a/m4/ax_prog_jar.m4 b/m4/ax_prog_jar.m4
new file mode 100644
index 0000000..776e804
--- /dev/null
+++ b/m4/ax_prog_jar.m4
@@ -0,0 +1,52 @@
+# ===========================================================================
+#        http://www.gnu.org/software/autoconf-archive/ax_prog_jar.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AX_PROG_JAR
+#
+# DESCRIPTION
+#
+#   AX_PROG_JAR tests for an existing jar program. It uses the environment
+#   variable JAR then tests in sequence various common jar programs.
+#
+#   If you want to force a specific compiler:
+#
+#   - at the configure.in level, set JAR=yourcompiler before calling
+#   AX_PROG_JAR
+#
+#   - at the configure level, setenv JAR
+#
+#   You can use the JAR variable in your Makefile.in, with @JAR@.
+#
+#   Note: This macro depends on the autoconf M4 macros for Java programs. It
+#   is VERY IMPORTANT that you download that whole set, some macros depend
+#   on other. Unfortunately, the autoconf archive does not support the
+#   concept of set of macros, so I had to break it for submission.
+#
+#   The general documentation of those macros, as well as the sample
+#   configure.in, is included in the AX_PROG_JAVA macro.
+#
+# LICENSE
+#
+#   Copyright (c) 2008 Egon Willighagen <e.willighagen@science.ru.nl>
+#
+#   Copying and distribution of this file, with or without modification, are
+#   permitted in any medium without royalty provided the copyright notice
+#   and this notice are preserved. This file is offered as-is, without any
+#   warranty.
+
+#serial 6
+
+AU_ALIAS([AC_PROG_JAR], [AX_PROG_JAR])
+AC_DEFUN([AX_PROG_JAR],[
+AC_REQUIRE([AC_EXEEXT])dnl
+if test "x$JAVAPREFIX" = x; then
+        test "x$JAR" = x && AC_CHECK_PROGS(JAR, jar$EXEEXT)
+else
+        test "x$JAR" = x && AC_CHECK_PROGS(JAR, jar, $JAVAPREFIX)
+fi
+test "x$JAR" = x && AC_MSG_ERROR([no acceptable jar program found in \$PATH])
+AC_PROVIDE([$0])dnl
+])
diff --git a/m4/ax_prog_java.m4 b/m4/ax_prog_java.m4
new file mode 100644
index 0000000..5471f32
--- /dev/null
+++ b/m4/ax_prog_java.m4
@@ -0,0 +1,115 @@
+# ===========================================================================
+#       http://www.gnu.org/software/autoconf-archive/ax_prog_java.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AX_PROG_JAVA
+#
+# DESCRIPTION
+#
+#   Here is a summary of the main macros:
+#
+#   AX_PROG_JAVAC: finds a Java compiler.
+#
+#   AX_PROG_JAVA: finds a Java virtual machine.
+#
+#   AX_CHECK_CLASS: finds if we have the given class (beware of CLASSPATH!).
+#
+#   AX_CHECK_RQRD_CLASS: finds if we have the given class and stops
+#   otherwise.
+#
+#   AX_TRY_COMPILE_JAVA: attempt to compile user given source.
+#
+#   AX_TRY_RUN_JAVA: attempt to compile and run user given source.
+#
+#   AX_JAVA_OPTIONS: adds Java configure options.
+#
+#   AX_PROG_JAVA tests an existing Java virtual machine. It uses the
+#   environment variable JAVA then tests in sequence various common Java
+#   virtual machines. For political reasons, it starts with the free ones.
+#   You *must* call [AX_PROG_JAVAC] before.
+#
+#   If you want to force a specific VM:
+#
+#   - at the configure.in level, set JAVA=yourvm before calling AX_PROG_JAVA
+#
+#     (but after AC_INIT)
+#
+#   - at the configure level, setenv JAVA
+#
+#   You can use the JAVA variable in your Makefile.in, with @JAVA@.
+#
+#   *Warning*: its success or failure can depend on a proper setting of the
+#   CLASSPATH env. variable.
+#
+#   TODO: allow to exclude virtual machines (rationale: most Java programs
+#   cannot run with some VM like kaffe).
+#
+#   Note: This is part of the set of autoconf M4 macros for Java programs.
+#   It is VERY IMPORTANT that you download the whole set, some macros depend
+#   on other. Unfortunately, the autoconf archive does not support the
+#   concept of set of macros, so I had to break it for submission.
+#
+#   A Web page, with a link to the latest CVS snapshot is at
+#   <http://www.internatif.org/bortzmeyer/autoconf-Java/>.
+#
+#   This is a sample configure.in Process this file with autoconf to produce
+#   a configure script.
+#
+#     AC_INIT(UnTag.java)
+#
+#     dnl Checks for programs.
+#     AC_CHECK_CLASSPATH
+#     AX_PROG_JAVAC
+#     AX_PROG_JAVA
+#
+#     dnl Checks for classes
+#     AX_CHECK_RQRD_CLASS(org.xml.sax.Parser)
+#     AX_CHECK_RQRD_CLASS(com.jclark.xml.sax.Driver)
+#
+#     AC_OUTPUT(Makefile)
+#
+# LICENSE
+#
+#   Copyright (c) 2008 Stephane Bortzmeyer <bortzmeyer@pasteur.fr>
+#
+#   This program is free software; you can redistribute it and/or modify it
+#   under the terms of the GNU General Public License as published by the
+#   Free Software Foundation; either version 2 of the License, or (at your
+#   option) any later version.
+#
+#   This program is distributed in the hope that it will be useful, but
+#   WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
+#   Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License along
+#   with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+#   As a special exception, the respective Autoconf Macro's copyright owner
+#   gives unlimited permission to copy, distribute and modify the configure
+#   scripts that are the output of Autoconf when processing the Macro. You
+#   need not follow the terms of the GNU General Public License when using
+#   or distributing such scripts, even though portions of the text of the
+#   Macro appear in them. The GNU General Public License (GPL) does govern
+#   all other use of the material that constitutes the Autoconf Macro.
+#
+#   This special exception to the GPL applies to versions of the Autoconf
+#   Macro released by the Autoconf Archive. When you make and distribute a
+#   modified version of the Autoconf Macro, you may extend this special
+#   exception to the GPL to apply to your modified version as well.
+
+#serial 8
+
+AU_ALIAS([AC_PROG_JAVA], [AX_PROG_JAVA])
+AC_DEFUN([AX_PROG_JAVA],[
+if test x$JAVAPREFIX = x; then
+        test x$JAVA = x && AC_CHECK_PROGS(JAVA, kaffe java)
+else
+        test x$JAVA = x && AC_CHECK_PROGS(JAVA, kaffe java, $JAVAPREFIX)
+fi
+test x$JAVA = x && AC_MSG_ERROR([no acceptable Java virtual machine found in \$PATH])
+AX_PROG_JAVA_WORKS
+AC_PROVIDE([$0])dnl
+])
diff --git a/m4/ax_prog_java_cc.m4 b/m4/ax_prog_java_cc.m4
new file mode 100644
index 0000000..3df064f
--- /dev/null
+++ b/m4/ax_prog_java_cc.m4
@@ -0,0 +1,104 @@
+# ===========================================================================
+#      http://www.gnu.org/software/autoconf-archive/ax_prog_java_cc.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AX_PROG_JAVA_CC
+#
+# DESCRIPTION
+#
+#   Finds the appropriate java compiler on your path. By preference the java
+#   compiler is gcj, then jikes then javac.
+#
+#   The macro can take one argument specifying a space separated list of
+#   java compiler names.
+#
+#   For example:
+#
+#     AX_PROG_JAVA_CC(javac, gcj)
+#
+#   The macro also sets the compiler options variable: JAVA_CC_OPTS to
+#   something sensible:
+#
+#    - for GCJ it sets it to: @GCJ_OPTS@
+#      (if GCJ_OPTS is not yet defined then it is set to "-C")
+#
+#    - no other compiler has applicable options yet
+#
+#   Here's an example configure.in:
+#
+#     AC_INIT(Makefile.in)
+#     AX_PROG_JAVA_CC()
+#     AC_OUTPUT(Makefile)
+#     dnl End.
+#
+#   And here's the start of the Makefile.in:
+#
+#     PROJECT_ROOT      := @srcdir@
+#     # Tool definitions.
+#     JAVAC             := @JAVA_CC@
+#     JAVAC_OPTS        := @JAVA_CC_OPTS@
+#     JAR_TOOL          := @jar_tool@
+#
+# LICENSE
+#
+#   Copyright (c) 2008 Nic Ferrier <nferrier@tapsellferrier.co.uk>
+#
+#   This program is free software; you can redistribute it and/or modify it
+#   under the terms of the GNU General Public License as published by the
+#   Free Software Foundation; either version 2 of the License, or (at your
+#   option) any later version.
+#
+#   This program is distributed in the hope that it will be useful, but
+#   WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
+#   Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License along
+#   with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+#   As a special exception, the respective Autoconf Macro's copyright owner
+#   gives unlimited permission to copy, distribute and modify the configure
+#   scripts that are the output of Autoconf when processing the Macro. You
+#   need not follow the terms of the GNU General Public License when using
+#   or distributing such scripts, even though portions of the text of the
+#   Macro appear in them. The GNU General Public License (GPL) does govern
+#   all other use of the material that constitutes the Autoconf Macro.
+#
+#   This special exception to the GPL applies to versions of the Autoconf
+#   Macro released by the Autoconf Archive. When you make and distribute a
+#   modified version of the Autoconf Macro, you may extend this special
+#   exception to the GPL to apply to your modified version as well.
+
+#serial 4
+
+# AX_PROG_JAVA_CC([COMPILER ...])
+# --------------------------
+# COMPILER ... is a space separated list of java compilers to search for.
+# This just gives the user an opportunity to specify an alternative
+# search list for the java compiler.
+AU_ALIAS([AC_PROG_JAVA_CC], [AX_PROG_JAVA_CC])
+AC_DEFUN([AX_PROG_JAVA_CC],
+[AC_ARG_VAR([JAVA_CC],                [java compiler command])dnl
+AC_ARG_VAR([JAVA_CC_FLAGS],           [java compiler flags])dnl
+m4_ifval([$1],
+      [AC_CHECK_TOOLS(JAVA_CC, [$1])],
+[AC_CHECK_TOOL(JAVA_CC, gcj)
+if test -z "$JAVA_CC"; then
+  AC_CHECK_TOOL(JAVA_CC, javac)
+fi
+if test -z "$JAVA_CC"; then
+  AC_CHECK_TOOL(JAVA_CC, jikes)
+fi
+])
+
+if test "$JAVA_CC" = "gcj"; then
+   if test "$GCJ_OPTS" = ""; then
+      AC_SUBST(GCJ_OPTS,-C)
+   fi
+   AC_SUBST(JAVA_CC_OPTS, @GCJ_OPTS@,
+        [Define the compilation options for GCJ])
+fi
+test -z "$JAVA_CC" && AC_MSG_ERROR([no acceptable java compiler found in \$PATH])
+])# AX_PROG_JAVA_CC
diff --git a/m4/ax_prog_java_works.m4 b/m4/ax_prog_java_works.m4
new file mode 100644
index 0000000..741bd56
--- /dev/null
+++ b/m4/ax_prog_java_works.m4
@@ -0,0 +1,134 @@
+# ===========================================================================
+#    http://www.gnu.org/software/autoconf-archive/ax_prog_java_works.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AX_PROG_JAVA_WORKS
+#
+# DESCRIPTION
+#
+#   Internal use ONLY.
+#
+#   Note: This is part of the set of autoconf M4 macros for Java programs.
+#   It is VERY IMPORTANT that you download the whole set, some macros depend
+#   on other. Unfortunately, the autoconf archive does not support the
+#   concept of set of macros, so I had to break it for submission. The
+#   general documentation, as well as the sample configure.in, is included
+#   in the AX_PROG_JAVA macro.
+#
+# LICENSE
+#
+#   Copyright (c) 2008 Stephane Bortzmeyer <bortzmeyer@pasteur.fr>
+#
+#   This program is free software; you can redistribute it and/or modify it
+#   under the terms of the GNU General Public License as published by the
+#   Free Software Foundation; either version 2 of the License, or (at your
+#   option) any later version.
+#
+#   This program is distributed in the hope that it will be useful, but
+#   WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
+#   Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License along
+#   with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+#   As a special exception, the respective Autoconf Macro's copyright owner
+#   gives unlimited permission to copy, distribute and modify the configure
+#   scripts that are the output of Autoconf when processing the Macro. You
+#   need not follow the terms of the GNU General Public License when using
+#   or distributing such scripts, even though portions of the text of the
+#   Macro appear in them. The GNU General Public License (GPL) does govern
+#   all other use of the material that constitutes the Autoconf Macro.
+#
+#   This special exception to the GPL applies to versions of the Autoconf
+#   Macro released by the Autoconf Archive. When you make and distribute a
+#   modified version of the Autoconf Macro, you may extend this special
+#   exception to the GPL to apply to your modified version as well.
+
+#serial 8
+
+AU_ALIAS([AC_PROG_JAVA_WORKS], [AX_PROG_JAVA_WORKS])
+AC_DEFUN([AX_PROG_JAVA_WORKS], [
+AC_PATH_PROG(UUDECODE, uudecode, [no])
+if test x$UUDECODE != xno; then
+AC_CACHE_CHECK([if uudecode can decode base 64 file], ac_cv_prog_uudecode_base64, [
+dnl /**
+dnl  * Test.java: used to test if java compiler works.
+dnl  */
+dnl public class Test
+dnl {
+dnl
+dnl public static void
+dnl main( String[] argv )
+dnl {
+dnl     System.exit (0);
+dnl }
+dnl
+dnl }
+cat << \EOF > Test.uue
+begin-base64 644 Test.class
+yv66vgADAC0AFQcAAgEABFRlc3QHAAQBABBqYXZhL2xhbmcvT2JqZWN0AQAE
+bWFpbgEAFihbTGphdmEvbGFuZy9TdHJpbmc7KVYBAARDb2RlAQAPTGluZU51
+bWJlclRhYmxlDAAKAAsBAARleGl0AQAEKEkpVgoADQAJBwAOAQAQamF2YS9s
+YW5nL1N5c3RlbQEABjxpbml0PgEAAygpVgwADwAQCgADABEBAApTb3VyY2VG
+aWxlAQAJVGVzdC5qYXZhACEAAQADAAAAAAACAAkABQAGAAEABwAAACEAAQAB
+AAAABQO4AAyxAAAAAQAIAAAACgACAAAACgAEAAsAAQAPABAAAQAHAAAAIQAB
+AAEAAAAFKrcAErEAAAABAAgAAAAKAAIAAAAEAAQABAABABMAAAACABQ=
+====
+EOF
+if $UUDECODE Test.uue; then
+        ac_cv_prog_uudecode_base64=yes
+else
+        echo "configure: __oline__: uudecode had trouble decoding base 64 file 'Test.uue'" >&AS_MESSAGE_LOG_FD
+        echo "configure: failed file was:" >&AS_MESSAGE_LOG_FD
+        cat Test.uue >&AS_MESSAGE_LOG_FD
+        ac_cv_prog_uudecode_base64=no
+fi
+rm -f Test.uue])
+fi
+if test x$ac_cv_prog_uudecode_base64 != xyes; then
+        rm -f Test.class
+        AC_MSG_WARN([I have to compile Test.class from scratch])
+        if test x$ac_cv_prog_javac_works = xno; then
+                AC_MSG_ERROR([Cannot compile java source. $JAVAC does not work properly])
+        fi
+        if test x$ac_cv_prog_javac_works = x; then
+                AX_PROG_JAVAC
+        fi
+fi
+AC_CACHE_CHECK(if $JAVA works, ac_cv_prog_java_works, [
+JAVA_TEST=Test.java
+CLASS_TEST=Test.class
+TEST=Test
+changequote(, )dnl
+cat << \EOF > $JAVA_TEST
+/* [#]line __oline__ "configure" */
+public class Test {
+public static void main (String args[]) {
+        System.exit (0);
+} }
+EOF
+changequote([, ])dnl
+if test x$ac_cv_prog_uudecode_base64 != xyes; then
+        if AC_TRY_COMMAND($JAVAC $JAVACFLAGS $JAVA_TEST) && test -s $CLASS_TEST; then
+                :
+        else
+          echo "configure: failed program was:" >&AS_MESSAGE_LOG_FD
+          cat $JAVA_TEST >&AS_MESSAGE_LOG_FD
+          AC_MSG_ERROR(The Java compiler $JAVAC failed (see config.log, check the CLASSPATH?))
+        fi
+fi
+if AC_TRY_COMMAND($JAVA $JAVAFLAGS $TEST) >/dev/null 2>&1; then
+  ac_cv_prog_java_works=yes
+else
+  echo "configure: failed program was:" >&AS_MESSAGE_LOG_FD
+  cat $JAVA_TEST >&AS_MESSAGE_LOG_FD
+  AC_MSG_ERROR(The Java VM $JAVA failed (see config.log, check the CLASSPATH?))
+fi
+rm -fr $JAVA_TEST $CLASS_TEST Test.uue
+])
+AC_PROVIDE([$0])dnl
+]
+)
diff --git a/m4/ax_prog_javac.m4 b/m4/ax_prog_javac.m4
new file mode 100644
index 0000000..d9bcc2d
--- /dev/null
+++ b/m4/ax_prog_javac.m4
@@ -0,0 +1,79 @@
+# ===========================================================================
+#       http://www.gnu.org/software/autoconf-archive/ax_prog_javac.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AX_PROG_JAVAC
+#
+# DESCRIPTION
+#
+#   AX_PROG_JAVAC tests an existing Java compiler. It uses the environment
+#   variable JAVAC then tests in sequence various common Java compilers. For
+#   political reasons, it starts with the free ones.
+#
+#   If you want to force a specific compiler:
+#
+#   - at the configure.in level, set JAVAC=yourcompiler before calling
+#   AX_PROG_JAVAC
+#
+#   - at the configure level, setenv JAVAC
+#
+#   You can use the JAVAC variable in your Makefile.in, with @JAVAC@.
+#
+#   *Warning*: its success or failure can depend on a proper setting of the
+#   CLASSPATH env. variable.
+#
+#   TODO: allow to exclude compilers (rationale: most Java programs cannot
+#   compile with some compilers like guavac).
+#
+#   Note: This is part of the set of autoconf M4 macros for Java programs.
+#   It is VERY IMPORTANT that you download the whole set, some macros depend
+#   on other. Unfortunately, the autoconf archive does not support the
+#   concept of set of macros, so I had to break it for submission. The
+#   general documentation, as well as the sample configure.in, is included
+#   in the AX_PROG_JAVA macro.
+#
+# LICENSE
+#
+#   Copyright (c) 2008 Stephane Bortzmeyer <bortzmeyer@pasteur.fr>
+#
+#   This program is free software; you can redistribute it and/or modify it
+#   under the terms of the GNU General Public License as published by the
+#   Free Software Foundation; either version 2 of the License, or (at your
+#   option) any later version.
+#
+#   This program is distributed in the hope that it will be useful, but
+#   WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
+#   Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License along
+#   with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+#   As a special exception, the respective Autoconf Macro's copyright owner
+#   gives unlimited permission to copy, distribute and modify the configure
+#   scripts that are the output of Autoconf when processing the Macro. You
+#   need not follow the terms of the GNU General Public License when using
+#   or distributing such scripts, even though portions of the text of the
+#   Macro appear in them. The GNU General Public License (GPL) does govern
+#   all other use of the material that constitutes the Autoconf Macro.
+#
+#   This special exception to the GPL applies to versions of the Autoconf
+#   Macro released by the Autoconf Archive. When you make and distribute a
+#   modified version of the Autoconf Macro, you may extend this special
+#   exception to the GPL to apply to your modified version as well.
+
+#serial 6
+
+AU_ALIAS([AC_PROG_JAVAC], [AX_PROG_JAVAC])
+AC_DEFUN([AX_PROG_JAVAC],[
+if test "x$JAVAPREFIX" = x; then
+        test "x$JAVAC" = x && AC_CHECK_PROGS(JAVAC, "gcj -C" guavac jikes javac)
+else
+        test "x$JAVAC" = x && AC_CHECK_PROGS(JAVAC, "gcj -C" guavac jikes javac, $JAVAPREFIX)
+fi
+test "x$JAVAC" = x && AC_MSG_ERROR([no acceptable Java compiler found in \$PATH])
+AX_PROG_JAVAC_WORKS
+AC_PROVIDE([$0])dnl
+])
diff --git a/m4/ax_prog_javac_works.m4 b/m4/ax_prog_javac_works.m4
new file mode 100644
index 0000000..7dfa1e3
--- /dev/null
+++ b/m4/ax_prog_javac_works.m4
@@ -0,0 +1,72 @@
+# ===========================================================================
+#    http://www.gnu.org/software/autoconf-archive/ax_prog_javac_works.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AX_PROG_JAVAC_WORKS
+#
+# DESCRIPTION
+#
+#   Internal use ONLY.
+#
+#   Note: This is part of the set of autoconf M4 macros for Java programs.
+#   It is VERY IMPORTANT that you download the whole set, some macros depend
+#   on other. Unfortunately, the autoconf archive does not support the
+#   concept of set of macros, so I had to break it for submission. The
+#   general documentation, as well as the sample configure.in, is included
+#   in the AX_PROG_JAVA macro.
+#
+# LICENSE
+#
+#   Copyright (c) 2008 Stephane Bortzmeyer <bortzmeyer@pasteur.fr>
+#
+#   This program is free software; you can redistribute it and/or modify it
+#   under the terms of the GNU General Public License as published by the
+#   Free Software Foundation; either version 2 of the License, or (at your
+#   option) any later version.
+#
+#   This program is distributed in the hope that it will be useful, but
+#   WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
+#   Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License along
+#   with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+#   As a special exception, the respective Autoconf Macro's copyright owner
+#   gives unlimited permission to copy, distribute and modify the configure
+#   scripts that are the output of Autoconf when processing the Macro. You
+#   need not follow the terms of the GNU General Public License when using
+#   or distributing such scripts, even though portions of the text of the
+#   Macro appear in them. The GNU General Public License (GPL) does govern
+#   all other use of the material that constitutes the Autoconf Macro.
+#
+#   This special exception to the GPL applies to versions of the Autoconf
+#   Macro released by the Autoconf Archive. When you make and distribute a
+#   modified version of the Autoconf Macro, you may extend this special
+#   exception to the GPL to apply to your modified version as well.
+
+#serial 6
+
+AU_ALIAS([AC_PROG_JAVAC_WORKS], [AX_PROG_JAVAC_WORKS])
+AC_DEFUN([AX_PROG_JAVAC_WORKS],[
+AC_CACHE_CHECK([if $JAVAC works], ac_cv_prog_javac_works, [
+JAVA_TEST=Test.java
+CLASS_TEST=Test.class
+cat << \EOF > $JAVA_TEST
+/* [#]line __oline__ "configure" */
+public class Test {
+}
+EOF
+if AC_TRY_COMMAND($JAVAC $JAVACFLAGS $JAVA_TEST) >/dev/null 2>&1; then
+  ac_cv_prog_javac_works=yes
+else
+  AC_MSG_ERROR([The Java compiler $JAVAC failed (see config.log, check the CLASSPATH?)])
+  echo "configure: failed program was:" >&AS_MESSAGE_LOG_FD
+  cat $JAVA_TEST >&AS_MESSAGE_LOG_FD
+fi
+rm -f $JAVA_TEST $CLASS_TEST
+])
+AC_PROVIDE([$0])dnl
+])
diff --git a/m4/ax_prog_javadoc.m4 b/m4/ax_prog_javadoc.m4
new file mode 100644
index 0000000..508375d
--- /dev/null
+++ b/m4/ax_prog_javadoc.m4
@@ -0,0 +1,52 @@
+# ===========================================================================
+#      http://www.gnu.org/software/autoconf-archive/ax_prog_javadoc.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AX_PROG_JAVADOC
+#
+# DESCRIPTION
+#
+#   AX_PROG_JAVADOC tests for an existing javadoc generator. It uses the
+#   environment variable JAVADOC then tests in sequence various common
+#   javadoc generator.
+#
+#   If you want to force a specific compiler:
+#
+#   - at the configure.in level, set JAVADOC=yourgenerator before calling
+#   AX_PROG_JAVADOC
+#
+#   - at the configure level, setenv JAVADOC
+#
+#   You can use the JAVADOC variable in your Makefile.in, with @JAVADOC@.
+#
+#   Note: This macro depends on the autoconf M4 macros for Java programs. It
+#   is VERY IMPORTANT that you download that whole set, some macros depend
+#   on other. Unfortunately, the autoconf archive does not support the
+#   concept of set of macros, so I had to break it for submission.
+#
+#   The general documentation of those macros, as well as the sample
+#   configure.in, is included in the AX_PROG_JAVA macro.
+#
+# LICENSE
+#
+#   Copyright (c) 2008 Egon Willighagen <e.willighagen@science.ru.nl>
+#
+#   Copying and distribution of this file, with or without modification, are
+#   permitted in any medium without royalty provided the copyright notice
+#   and this notice are preserved. This file is offered as-is, without any
+#   warranty.
+
+#serial 7
+
+AU_ALIAS([AC_PROG_JAVADOC], [AX_PROG_JAVADOC])
+AC_DEFUN([AX_PROG_JAVADOC],[
+if test "x$JAVAPREFIX" = x; then
+        test "x$JAVADOC" = x && AC_CHECK_PROGS(JAVADOC, javadoc)
+else
+        test "x$JAVADOC" = x && AC_CHECK_PROGS(JAVADOC, javadoc, $JAVAPREFIX)
+fi
+test "x$JAVADOC" = x && AC_MSG_ERROR([no acceptable javadoc generator found in \$PATH])
+AC_PROVIDE([$0])dnl
+])
diff --git a/m4/ax_prog_javah.m4 b/m4/ax_prog_javah.m4
new file mode 100644
index 0000000..7afe410
--- /dev/null
+++ b/m4/ax_prog_javah.m4
@@ -0,0 +1,43 @@
+# ===========================================================================
+#       http://www.gnu.org/software/autoconf-archive/ax_prog_javah.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AX_PROG_JAVAH
+#
+# DESCRIPTION
+#
+#   AX_PROG_JAVAH tests the availability of the javah header generator and
+#   looks for the jni.h header file. If available, JAVAH is set to the full
+#   path of javah and CPPFLAGS is updated accordingly.
+#
+# LICENSE
+#
+#   Copyright (c) 2008 Luc Maisonobe <luc@spaceroots.org>
+#
+#   Copying and distribution of this file, with or without modification, are
+#   permitted in any medium without royalty provided the copyright notice
+#   and this notice are preserved. This file is offered as-is, without any
+#   warranty.
+
+#serial 5
+
+AU_ALIAS([AC_PROG_JAVAH], [AX_PROG_JAVAH])
+AC_DEFUN([AX_PROG_JAVAH],[
+AC_REQUIRE([AC_CANONICAL_SYSTEM])dnl
+AC_REQUIRE([AC_PROG_CPP])dnl
+AC_PATH_PROG(JAVAH,javah)
+if test x"`eval 'echo $ac_cv_path_JAVAH'`" != x ; then
+  AC_TRY_CPP([#include <jni.h>],,[
+    ac_save_CPPFLAGS="$CPPFLAGS"
+changequote(, )dnl
+    ac_dir=`echo $ac_cv_path_JAVAH | sed 's,\(.*\)/[^/]*/[^/]*$,\1/include,'`
+    ac_machdep=`echo $build_os | sed 's,[-0-9].*,,' | sed 's,cygwin,win32,'`
+changequote([, ])dnl
+    CPPFLAGS="$ac_save_CPPFLAGS -I$ac_dir -I$ac_dir/$ac_machdep"
+    AC_TRY_CPP([#include <jni.h>],
+               ac_save_CPPFLAGS="$CPPFLAGS",
+               AC_MSG_WARN([unable to include <jni.h>]))
+    CPPFLAGS="$ac_save_CPPFLAGS"])
+fi])
diff --git a/m4/ax_try_compile_java.m4 b/m4/ax_try_compile_java.m4
new file mode 100644
index 0000000..8efd091
--- /dev/null
+++ b/m4/ax_try_compile_java.m4
@@ -0,0 +1,55 @@
+# ===========================================================================
+#    http://www.gnu.org/software/autoconf-archive/ax_try_compile_java.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AX_TRY_COMPILE_JAVA
+#
+# DESCRIPTION
+#
+#   AX_TRY_COMPILE_JAVA attempt to compile user given source.
+#
+#   *Warning*: its success or failure can depend on a proper setting of the
+#   CLASSPATH env. variable.
+#
+#   Note: This is part of the set of autoconf M4 macros for Java programs.
+#   It is VERY IMPORTANT that you download the whole set, some macros depend
+#   on other. Unfortunately, the autoconf archive does not support the
+#   concept of set of macros, so I had to break it for submission. The
+#   general documentation, as well as the sample configure.in, is included
+#   in the AX_PROG_JAVA macro.
+#
+# LICENSE
+#
+#   Copyright (c) 2008 Devin Weaver <ktohg@tritarget.com>
+#
+#   Copying and distribution of this file, with or without modification, are
+#   permitted in any medium without royalty provided the copyright notice
+#   and this notice are preserved. This file is offered as-is, without any
+#   warranty.
+
+#serial 7
+
+AU_ALIAS([AC_TRY_COMPILE_JAVA], [AX_TRY_COMPILE_JAVA])
+AC_DEFUN([AX_TRY_COMPILE_JAVA],[
+AC_REQUIRE([AX_PROG_JAVAC])dnl
+cat << \EOF > Test.java
+/* [#]line __oline__ "configure" */
+ifelse([$1], , , [import $1;])
+public class Test {
+[$2]
+}
+EOF
+if AC_TRY_COMMAND($JAVAC $JAVACFLAGS Test.java) && test -s Test.class
+then
+dnl Don't remove the temporary files here, so they can be examined.
+  ifelse([$3], , :, [$3])
+else
+  echo "configure: failed program was:" >&AS_MESSAGE_LOG_FD
+  cat Test.java >&AS_MESSAGE_LOG_FD
+ifelse([$4], , , [  rm -fr Test*
+  $4
+])dnl
+fi
+rm -fr Test*])
diff --git a/m4/ax_try_run_java.m4 b/m4/ax_try_run_java.m4
new file mode 100644
index 0000000..80ec934
--- /dev/null
+++ b/m4/ax_try_run_java.m4
@@ -0,0 +1,56 @@
+# ===========================================================================
+#      http://www.gnu.org/software/autoconf-archive/ax_try_run_java.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AX_TRY_RUN_JAVA
+#
+# DESCRIPTION
+#
+#   AX_TRY_RUN_JAVA attempt to compile and run user given source.
+#
+#   *Warning*: its success or failure can depend on a proper setting of the
+#   CLASSPATH env. variable.
+#
+#   Note: This is part of the set of autoconf M4 macros for Java programs.
+#   It is VERY IMPORTANT that you download the whole set, some macros depend
+#   on other. Unfortunately, the autoconf archive does not support the
+#   concept of set of macros, so I had to break it for submission. The
+#   general documentation, as well as the sample configure.in, is included
+#   in the AX_PROG_JAVA macro.
+#
+# LICENSE
+#
+#   Copyright (c) 2008 Devin Weaver <ktohg@tritarget.com>
+#
+#   Copying and distribution of this file, with or without modification, are
+#   permitted in any medium without royalty provided the copyright notice
+#   and this notice are preserved. This file is offered as-is, without any
+#   warranty.
+
+#serial 1
+
+AU_ALIAS([AC_TRY_RUN_JAVA], [AX_TRY_RUN_JAVA])
+AC_DEFUN([AX_TRY_RUN_JAVA],[
+AC_REQUIRE([AX_PROG_JAVAC])dnl
+AC_REQUIRE([AX_PROG_JAVA])dnl
+cat << \EOF > Test.java
+/* [#]line __oline__ "configure" */
+ifelse([$1], , , [include $1;])
+public class Test {
+[$2]
+}
+EOF
+if AC_TRY_COMMAND($JAVAC $JAVACFLAGS Test.java) && test -s Test.class && ($JAVA $JAVAFLAGS Test; exit) 2>/dev/null
+then
+dnl Don't remove the temporary files here, so they can be examined.
+  ifelse([$3], , :, [$3])
+else
+  echo "configure: failed program was:" >&AS_MESSAGE_LOG_FD
+  cat Test.java >&AS_MESSAGE_LOG_FD
+ifelse([$4], , , [  rm -fr Test*
+  $4
+])dnl
+fi
+rm -fr Test*])
diff --git a/src/Makefile.in b/src/Makefile.in
index 97bb79f..ee0214b 100644
--- a/src/Makefile.in
+++ b/src/Makefile.in
@@ -61,7 +61,14 @@ subdir = src
 DIST_COMMON = $(libffts_include_HEADERS) $(srcdir)/Makefile.am \
 	$(srcdir)/Makefile.in $(top_srcdir)/depcomp
 ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
-am__aclocal_m4_deps = $(top_srcdir)/configure.ac
+am__aclocal_m4_deps = $(top_srcdir)/m4/ax_check_classpath.m4 \
+	$(top_srcdir)/m4/ax_check_java_home.m4 \
+	$(top_srcdir)/m4/ax_java_options.m4 \
+	$(top_srcdir)/m4/ax_jni_include_dir.m4 \
+	$(top_srcdir)/m4/ax_prog_jar.m4 \
+	$(top_srcdir)/m4/ax_prog_javac.m4 \
+	$(top_srcdir)/m4/ax_prog_javac_works.m4 \
+	$(top_srcdir)/configure.ac
 am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
 	$(ACLOCAL_M4)
 mkinstalldirs = $(install_sh) -d
@@ -179,6 +186,14 @@ INSTALL_DATA = @INSTALL_DATA@
 INSTALL_PROGRAM = @INSTALL_PROGRAM@
 INSTALL_SCRIPT = @INSTALL_SCRIPT@
 INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@
+JAR = @JAR@
+JAVA = @JAVA@
+JAVAC = @JAVAC@
+JAVACFLAGS = @JAVACFLAGS@
+JAVAFLAGS = @JAVAFLAGS@
+JAVAPREFIX = @JAVAPREFIX@
+JAVA_PATH_NAME = @JAVA_PATH_NAME@
+JNI_CPPFLAGS = @JNI_CPPFLAGS@
 LD = @LD@
 LDFLAGS = @LDFLAGS@
 LIBOBJS = @LIBOBJS@
@@ -210,6 +225,7 @@ SET_MAKE = @SET_MAKE@
 SHELL = @SHELL@
 STRIP = @STRIP@
 VERSION = @VERSION@
+_ACJNI_JAVAC = @_ACJNI_JAVAC@
 abs_builddir = @abs_builddir@
 abs_srcdir = @abs_srcdir@
 abs_top_builddir = @abs_top_builddir@
diff --git a/tests/Makefile.am b/tests/Makefile.am
index 77f4cc5..208685c 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -1,11 +1,4 @@
-all: test
-
-test: test.c ../src/.libs/libffts.a
-	$(CC) $(CFLAGS) test.c -o test -lm ../src/.libs/libffts.a -I../include
-
-clean:
-	-$(RM) -f test.o test
-
-distclean:
-
 
+noinst_PROGRAMS = test
+test_SOURCES = test.c
+test_LDADD = $(top_builddir)/src/libffts.la
diff --git a/tests/Makefile.in b/tests/Makefile.in
index 13f2e07..1bdace5 100644
--- a/tests/Makefile.in
+++ b/tests/Makefile.in
@@ -13,6 +13,7 @@
 # PARTICULAR PURPOSE.
 
 @SET_MAKE@
+
 VPATH = @srcdir@
 am__make_dryrun = \
   { \
@@ -49,23 +50,51 @@ PRE_UNINSTALL = :
 POST_UNINSTALL = :
 build_triplet = @build@
 host_triplet = @host@
+noinst_PROGRAMS = test$(EXEEXT)
 subdir = tests
-DIST_COMMON = $(srcdir)/Makefile.am $(srcdir)/Makefile.in
+DIST_COMMON = $(srcdir)/Makefile.am $(srcdir)/Makefile.in \
+	$(top_srcdir)/depcomp
 ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
-am__aclocal_m4_deps = $(top_srcdir)/configure.ac
+am__aclocal_m4_deps = $(top_srcdir)/m4/ax_check_classpath.m4 \
+	$(top_srcdir)/m4/ax_check_java_home.m4 \
+	$(top_srcdir)/m4/ax_java_options.m4 \
+	$(top_srcdir)/m4/ax_jni_include_dir.m4 \
+	$(top_srcdir)/m4/ax_prog_jar.m4 \
+	$(top_srcdir)/m4/ax_prog_javac.m4 \
+	$(top_srcdir)/m4/ax_prog_javac_works.m4 \
+	$(top_srcdir)/configure.ac
 am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
 	$(ACLOCAL_M4)
 mkinstalldirs = $(install_sh) -d
 CONFIG_HEADER = $(top_builddir)/config.h
 CONFIG_CLEAN_FILES =
 CONFIG_CLEAN_VPATH_FILES =
-SOURCES =
-DIST_SOURCES =
+PROGRAMS = $(noinst_PROGRAMS)
+am_test_OBJECTS = test.$(OBJEXT)
+test_OBJECTS = $(am_test_OBJECTS)
+test_DEPENDENCIES = $(top_builddir)/src/libffts.la
+DEFAULT_INCLUDES = -I.@am__isrc@ -I$(top_builddir)
+depcomp = $(SHELL) $(top_srcdir)/depcomp
+am__depfiles_maybe = depfiles
+am__mv = mv -f
+COMPILE = $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) \
+	$(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
+LTCOMPILE = $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
+	--mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) \
+	$(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
+CCLD = $(CC)
+LINK = $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
+	--mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) \
+	$(LDFLAGS) -o $@
+SOURCES = $(test_SOURCES)
+DIST_SOURCES = $(test_SOURCES)
 am__can_run_installinfo = \
   case $$AM_UPDATE_INFO_DIR in \
     n|no|NO) false;; \
     *) (install-info --version) >/dev/null 2>&1;; \
   esac
+ETAGS = etags
+CTAGS = ctags
 DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
 ACLOCAL = @ACLOCAL@
 AMTAR = @AMTAR@
@@ -104,6 +133,14 @@ INSTALL_DATA = @INSTALL_DATA@
 INSTALL_PROGRAM = @INSTALL_PROGRAM@
 INSTALL_SCRIPT = @INSTALL_SCRIPT@
 INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@
+JAR = @JAR@
+JAVA = @JAVA@
+JAVAC = @JAVAC@
+JAVACFLAGS = @JAVACFLAGS@
+JAVAFLAGS = @JAVAFLAGS@
+JAVAPREFIX = @JAVAPREFIX@
+JAVA_PATH_NAME = @JAVA_PATH_NAME@
+JNI_CPPFLAGS = @JNI_CPPFLAGS@
 LD = @LD@
 LDFLAGS = @LDFLAGS@
 LIBOBJS = @LIBOBJS@
@@ -135,6 +172,7 @@ SET_MAKE = @SET_MAKE@
 SHELL = @SHELL@
 STRIP = @STRIP@
 VERSION = @VERSION@
+_ACJNI_JAVAC = @_ACJNI_JAVAC@
 abs_builddir = @abs_builddir@
 abs_srcdir = @abs_srcdir@
 abs_top_builddir = @abs_top_builddir@
@@ -188,9 +226,12 @@ target_alias = @target_alias@
 top_build_prefix = @top_build_prefix@
 top_builddir = @top_builddir@
 top_srcdir = @top_srcdir@
+test_SOURCES = test.c
+test_LDADD = $(top_builddir)/src/libffts.la
 all: all-am
 
 .SUFFIXES:
+.SUFFIXES: .c .lo .o .obj
 $(srcdir)/Makefile.in:  $(srcdir)/Makefile.am  $(am__configure_deps)
 	@for dep in $?; do \
 	  case '$(am__configure_deps)' in \
@@ -222,19 +263,118 @@ $(ACLOCAL_M4):  $(am__aclocal_m4_deps)
 	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
 $(am__aclocal_m4_deps):
 
+clean-noinstPROGRAMS:
+	@list='$(noinst_PROGRAMS)'; test -n "$$list" || exit 0; \
+	echo " rm -f" $$list; \
+	rm -f $$list || exit $$?; \
+	test -n "$(EXEEXT)" || exit 0; \
+	list=`for p in $$list; do echo "$$p"; done | sed 's/$(EXEEXT)$$//'`; \
+	echo " rm -f" $$list; \
+	rm -f $$list
+test$(EXEEXT): $(test_OBJECTS) $(test_DEPENDENCIES) $(EXTRA_test_DEPENDENCIES) 
+	@rm -f test$(EXEEXT)
+	$(LINK) $(test_OBJECTS) $(test_LDADD) $(LIBS)
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
+	-rm -f *.tab.c
+
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/test.Po@am__quote@
+
+.c.o:
+@am__fastdepCC_TRUE@	$(COMPILE) -MT $@ -MD -MP -MF $(DEPDIR)/$*.Tpo -c -o $@ $<
+@am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/$*.Tpo $(DEPDIR)/$*.Po
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@	$(COMPILE) -c $<
+
+.c.obj:
+@am__fastdepCC_TRUE@	$(COMPILE) -MT $@ -MD -MP -MF $(DEPDIR)/$*.Tpo -c -o $@ `$(CYGPATH_W) '$<'`
+@am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/$*.Tpo $(DEPDIR)/$*.Po
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@	$(COMPILE) -c `$(CYGPATH_W) '$<'`
+
+.c.lo:
+@am__fastdepCC_TRUE@	$(LTCOMPILE) -MT $@ -MD -MP -MF $(DEPDIR)/$*.Tpo -c -o $@ $<
+@am__fastdepCC_TRUE@	$(am__mv) $(DEPDIR)/$*.Tpo $(DEPDIR)/$*.Plo
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='$<' object='$@' libtool=yes @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@	$(LTCOMPILE) -c -o $@ $<
+
 mostlyclean-libtool:
 	-rm -f *.lo
 
 clean-libtool:
 	-rm -rf .libs _libs
+
+ID: $(HEADERS) $(SOURCES) $(LISP) $(TAGS_FILES)
+	list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \
+	unique=`for i in $$list; do \
+	    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+	  done | \
+	  $(AWK) '{ files[$$0] = 1; nonempty = 1; } \
+	      END { if (nonempty) { for (i in files) print i; }; }'`; \
+	mkid -fID $$unique
 tags: TAGS
-TAGS:
 
+TAGS:  $(HEADERS) $(SOURCES)  $(TAGS_DEPENDENCIES) \
+		$(TAGS_FILES) $(LISP)
+	set x; \
+	here=`pwd`; \
+	list='$(SOURCES) $(HEADERS)  $(LISP) $(TAGS_FILES)'; \
+	unique=`for i in $$list; do \
+	    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+	  done | \
+	  $(AWK) '{ files[$$0] = 1; nonempty = 1; } \
+	      END { if (nonempty) { for (i in files) print i; }; }'`; \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
 ctags: CTAGS
-CTAGS:
-
-cscope cscopelist:
+CTAGS:  $(HEADERS) $(SOURCES)  $(TAGS_DEPENDENCIES) \
+		$(TAGS_FILES) $(LISP)
+	list='$(SOURCES) $(HEADERS)  $(LISP) $(TAGS_FILES)'; \
+	unique=`for i in $$list; do \
+	    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+	  done | \
+	  $(AWK) '{ files[$$0] = 1; nonempty = 1; } \
+	      END { if (nonempty) { for (i in files) print i; }; }'`; \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
+
+cscopelist:  $(HEADERS) $(SOURCES) $(LISP)
+	list='$(SOURCES) $(HEADERS) $(LISP)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
 
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
 
 distdir: $(DISTFILES)
 	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
@@ -268,7 +408,7 @@ distdir: $(DISTFILES)
 	done
 check-am: all-am
 check: check-am
-all-am: Makefile
+all-am: Makefile $(PROGRAMS)
 installdirs:
 install: install-am
 install-exec: install-exec-am
@@ -300,9 +440,16 @@ distclean-generic:
 maintainer-clean-generic:
 	@echo "This command is intended for maintainers to use"
 	@echo "it deletes files that may require special tools to rebuild."
-clean-am: clean-generic clean-libtool mostlyclean-am
+clean: clean-am
 
-distclean-am: clean-am distclean-generic
+clean-am: clean-generic clean-libtool clean-noinstPROGRAMS \
+	mostlyclean-am
+
+distclean: distclean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
 
 dvi: dvi-am
 
@@ -345,12 +492,14 @@ install-ps-am:
 installcheck-am:
 
 maintainer-clean: maintainer-clean-am
+	-rm -rf ./$(DEPDIR)
 	-rm -f Makefile
 maintainer-clean-am: distclean-am maintainer-clean-generic
 
 mostlyclean: mostlyclean-am
 
-mostlyclean-am: mostlyclean-generic mostlyclean-libtool
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
 
 pdf: pdf-am
 
@@ -364,26 +513,19 @@ uninstall-am:
 
 .MAKE: install-am install-strip
 
-.PHONY: all all-am check check-am clean clean-generic clean-libtool \
-	distclean distclean-generic distclean-libtool distdir dvi \
-	dvi-am html html-am info info-am install install-am \
-	install-data install-data-am install-dvi install-dvi-am \
-	install-exec install-exec-am install-html install-html-am \
-	install-info install-info-am install-man install-pdf \
-	install-pdf-am install-ps install-ps-am install-strip \
-	installcheck installcheck-am installdirs maintainer-clean \
-	maintainer-clean-generic mostlyclean mostlyclean-generic \
-	mostlyclean-libtool pdf pdf-am ps ps-am uninstall uninstall-am
-
-all: test
-
-test: test.c ../src/.libs/libffts.a
-	$(CC) $(CFLAGS) test.c -o test -lm ../src/.libs/libffts.a -I../include
-
-clean:
-	-$(RM) -f test.o test
+.PHONY: CTAGS GTAGS all all-am check check-am clean clean-generic \
+	clean-libtool clean-noinstPROGRAMS cscopelist ctags distclean \
+	distclean-compile distclean-generic distclean-libtool \
+	distclean-tags distdir dvi dvi-am html html-am info info-am \
+	install install-am install-data install-data-am install-dvi \
+	install-dvi-am install-exec install-exec-am install-html \
+	install-html-am install-info install-info-am install-man \
+	install-pdf install-pdf-am install-ps install-ps-am \
+	install-strip installcheck installcheck-am installdirs \
+	maintainer-clean maintainer-clean-generic mostlyclean \
+	mostlyclean-compile mostlyclean-generic mostlyclean-libtool \
+	pdf pdf-am ps ps-am tags uninstall uninstall-am
 
-distclean:
 
 # Tell versions [3.59,3.63) of GNU make to not export all variables.
 # Otherwise a system limit (for SysV at least) may be exceeded.
diff --git a/tests/test.c b/tests/test.c
index f3ffcf7..03f8f7a 100644
--- a/tests/test.c
+++ b/tests/test.c
@@ -38,7 +38,7 @@
 	#include <xmmintrin.h>
 #endif 
 
-#include "ffts.h"
+#include "../include/ffts.h"
 
 
 #define PI 3.1415926535897932384626433832795028841971693993751058209