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dnl $Id: check-compile-et.m4,v 1.7.2.1 2003/08/15 14:40:42 lha Exp $
dnl
dnl CHECK_COMPILE_ET
AC_DEFUN([CHECK_COMPILE_ET], [
AC_CHECK_PROG(COMPILE_ET, compile_et, [compile_et])
krb_cv_compile_et="no"
krb_cv_com_err_need_r=""
if test "${COMPILE_ET}" = "compile_et"; then
dnl We have compile_et. Now let's see if it supports `prefix' and `index'.
AC_MSG_CHECKING(whether compile_et has the features we need)
cat > conftest_et.et <<'EOF'
error_table test conf
prefix CONFTEST
index 1
error_code CODE1, "CODE1"
index 128
error_code CODE2, "CODE2"
end
EOF
if ${COMPILE_ET} conftest_et.et >/dev/null 2>&1; then
dnl XXX Some systems have <et/com_err.h>.
save_CPPFLAGS="${CPPFLAGS}"
if test -d "/usr/include/et"; then
CPPFLAGS="-I/usr/include/et ${CPPFLAGS}"
fi
dnl Check that the `prefix' and `index' directives were honored.
AC_TRY_RUN([
#include <com_err.h>
#include <string.h>
#include "conftest_et.h"
int main(){
#ifndef ERROR_TABLE_BASE_conf
#error compile_et does not handle error_table N M
#endif
return (CONFTEST_CODE2 - CONFTEST_CODE1) != 127;}
], [krb_cv_compile_et="yes"],[CPPFLAGS="${save_CPPFLAGS}"])
fi
AC_MSG_RESULT(${krb_cv_compile_et})
if test "${krb_cv_compile_et}" = "yes"; then
AC_MSG_CHECKING(for if com_err needs to have a initialize_error_table_r)
AC_EGREP_CPP(initialize_error_table_r,[#include "conftest_et.c"],
[krb_cv_com_err_need_r="initialize_error_table_r(0,0,0,0);"])
if test X"$krb_cv_com_err_need_r" = X ; then
AC_MSG_RESULT(no)
else
AC_MSG_RESULT(yes)
fi
fi
rm -fr conftest*
fi
if test "${krb_cv_compile_et}" = "yes"; then
dnl Since compile_et seems to work, let's check libcom_err
krb_cv_save_LIBS="${LIBS}"
LIBS="${LIBS} -lcom_err"
AC_MSG_CHECKING(for com_err)
AC_TRY_LINK([#include <com_err.h>],[
const char *p;
p = error_message(0);
$krb_cv_com_err_need_r
],[krb_cv_com_err="yes"],[krb_cv_com_err="no"; CPPFLAGS="${save_CPPFLAGS}"])
AC_MSG_RESULT(${krb_cv_com_err})
LIBS="${krb_cv_save_LIBS}"
else
dnl Since compile_et doesn't work, forget about libcom_err
krb_cv_com_err="no"
fi
dnl Only use the system's com_err if we found compile_et, libcom_err, and
dnl com_err.h.
if test "${krb_cv_com_err}" = "yes"; then
DIR_com_err=""
LIB_com_err="-lcom_err"
LIB_com_err_a=""
LIB_com_err_so=""
AC_MSG_NOTICE(Using the already-installed com_err)
else
COMPILE_ET="\$(top_builddir)/lib/com_err/compile_et"
DIR_com_err="com_err"
LIB_com_err="\$(top_builddir)/lib/com_err/libcom_err.la"
LIB_com_err_a="\$(top_builddir)/lib/com_err/.libs/libcom_err.a"
LIB_com_err_so="\$(top_builddir)/lib/com_err/.libs/libcom_err.so"
AC_MSG_NOTICE(Using our own com_err)
fi
AC_SUBST(DIR_com_err)
AC_SUBST(LIB_com_err)
AC_SUBST(LIB_com_err_a)
AC_SUBST(LIB_com_err_so)
])
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