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dnl
dnl $Id: shared-libs.m4,v 1.4 1999/07/13 17:47:09 assar Exp $
dnl
dnl Shared library stuff has to be different everywhere
dnl
AC_DEFUN(AC_SHARED_LIBS, [
dnl Check if we want to use shared libraries
AC_ARG_ENABLE(shared,
[ --enable-shared create shared libraries for Kerberos])
AC_SUBST(CFLAGS)dnl
AC_SUBST(LDFLAGS)dnl
case ${enable_shared} in
yes ) enable_shared=yes;;
no ) enable_shared=no;;
* ) enable_shared=no;;
esac
# NOTE: Building shared libraries may not work if you do not use gcc!
#
# OS $SHLIBEXT
# HP-UX sl
# Linux so
# NetBSD so
# FreeBSD so
# OSF so
# SunOS5 so
# SunOS4 so.0.5
# Irix so
#
# LIBEXT is the extension we should build (.a or $SHLIBEXT)
LINK='$(CC)'
AC_SUBST(LINK)
lib_deps=yes
REAL_PICFLAGS="-fpic"
LDSHARED='$(CC) $(PICFLAGS) -shared'
LIBPREFIX=lib
build_symlink_command=@true
install_symlink_command=@true
install_symlink_command2=@true
REAL_SHLIBEXT=so
changequote({,})dnl
SHLIB_VERSION=`echo $VERSION | sed 's/\([0-9.]*\).*/\1/'`
SHLIB_SONAME=`echo $VERSION | sed 's/\([0-9]*\).*/\1/'`
changequote([,])dnl
case "${host}" in
*-*-hpux*)
REAL_SHLIBEXT=sl
REAL_LD_FLAGS='-Wl,+b$(libdir)'
if test -z "$GCC"; then
LDSHARED="ld -b"
REAL_PICFLAGS="+z"
fi
lib_deps=no
;;
*-*-linux*)
LDSHARED='$(CC) -shared -Wl,-soname,$(LIBNAME).so.'"${SHLIB_SONAME}"
REAL_LD_FLAGS='-Wl,-rpath,$(libdir)'
REAL_SHLIBEXT=so.$SHLIB_VERSION
build_symlink_command='$(LN_S) -f [$][@] $(LIBNAME).so'
install_symlink_command='$(LN_S) -f $(LIB) $(DESTDIR)$(libdir)/$(LIBNAME).so.'"${SHLIB_SONAME}"';$(LN_S) -f $(LIB) $(DESTDIR)$(libdir)/$(LIBNAME).so'
install_symlink_command2='$(LN_S) -f $(LIB2) $(DESTDIR)$(libdir)/$(LIBNAME2).so.'"${SHLIB_SONAME}"';$(LN_S) -f $(LIB2) $(DESTDIR)$(libdir)/$(LIBNAME2).so'
;;
changequote(,)dnl
*-*-freebsd[34]*)
changequote([,])dnl
REAL_SHLIBEXT=so.$SHLIB_VERSION
REAL_LD_FLAGS='-Wl,-R$(libdir)'
build_symlink_command='$(LN_S) -f [$][@] $(LIBNAME).so'
install_symlink_command='$(LN_S) -f $(LIB) $(DESTDIR)$(libdir)/$(LIBNAME).so'
install_symlink_command2='$(LN_S) -f $(LIB2) $(DESTDIR)$(libdir)/$(LIBNAME2).so'
;;
*-*-*bsd*)
REAL_SHLIBEXT=so.$SHLIB_VERSION
LDSHARED='ld -Bshareable'
REAL_LD_FLAGS='-Wl,-R$(libdir)'
;;
*-*-osf*)
REAL_LD_FLAGS='-Wl,-rpath,$(libdir)'
REAL_PICFLAGS=
LDSHARED='ld -shared -expect_unresolved \*'
;;
*-*-solaris2*)
REAL_LD_FLAGS='-Wl,-R$(libdir)'
if test -z "$GCC"; then
LDSHARED='$(CC) -G'
REAL_PICFLAGS="-Kpic"
fi
;;
*-fujitsu-uxpv*)
REAL_LD_FLAGS='' # really: LD_RUN_PATH=$(libdir) cc -o ...
REAL_LINK='LD_RUN_PATH=$(libdir) $(CC)'
LDSHARED='$(CC) -G'
REAL_PICFLAGS="-Kpic"
lib_deps=no # fails in mysterious ways
;;
*-*-sunos*)
REAL_SHLIBEXT=so.$SHLIB_VERSION
REAL_LD_FLAGS='-Wl,-L$(libdir)'
lib_deps=no
;;
*-*-irix*)
libdir="${libdir}${abilibdirext}"
REAL_LD_FLAGS="${abi} -Wl,-rpath,\$(libdir)"
LD_FLAGS="${abi} -Wl,-rpath,\$(libdir)"
LDSHARED="\$(CC) -shared ${abi}"
REAL_PICFLAGS=
CFLAGS="${abi} ${CFLAGS}"
;;
*-*-os2*)
LIBPREFIX=
EXECSUFFIX='.exe'
RANLIB=EMXOMF
LD_FLAGS=-Zcrtdll
REAL_SHLIBEXT=nobuild
;;
*-*-cygwin32*)
EXECSUFFIX='.exe'
REAL_SHLIBEXT=nobuild
;;
*) REAL_SHLIBEXT=nobuild
REAL_PICFLAGS=
;;
esac
if test "${enable_shared}" != "yes" ; then
PICFLAGS=""
SHLIBEXT="nobuild"
LIBEXT="a"
build_symlink_command=@true
install_symlink_command=@true
install_symlink_command2=@true
else
PICFLAGS="$REAL_PICFLAGS"
SHLIBEXT="$REAL_SHLIBEXT"
LIBEXT="$SHLIBEXT"
AC_MSG_CHECKING(whether to use -rpath)
case "$libdir" in
/lib | /usr/lib | /usr/local/lib)
AC_MSG_RESULT(no)
REAL_LD_FLAGS=
LD_FLAGS=
;;
*)
LD_FLAGS="$REAL_LD_FLAGS"
test "$REAL_LINK" && LINK="$REAL_LINK"
AC_MSG_RESULT($LD_FLAGS)
;;
esac
fi
if test "$lib_deps" = yes; then
lib_deps_yes=""
lib_deps_no="# "
else
lib_deps_yes="# "
lib_deps_no=""
fi
AC_SUBST(lib_deps_yes)
AC_SUBST(lib_deps_no)
# use supplied ld-flags, or none if `no'
if test "$with_ld_flags" = no; then
LD_FLAGS=
elif test -n "$with_ld_flags"; then
LD_FLAGS="$with_ld_flags"
fi
AC_SUBST(REAL_PICFLAGS) dnl
AC_SUBST(REAL_SHLIBEXT) dnl
AC_SUBST(REAL_LD_FLAGS) dnl
AC_SUBST(PICFLAGS) dnl
AC_SUBST(SHLIBEXT) dnl
AC_SUBST(LDSHARED) dnl
AC_SUBST(LD_FLAGS) dnl
AC_SUBST(LIBEXT) dnl
AC_SUBST(LIBPREFIX) dnl
AC_SUBST(EXECSUFFIX) dnl
AC_SUBST(build_symlink_command)dnl
AC_SUBST(install_symlink_command)dnl
AC_SUBST(install_symlink_command2)dnl
])
|
