-dnl $Id: aclocal.m4,v 1.107 2002/07/23 10:08:58 simonmar Exp $
+dnl $Id: aclocal.m4,v 1.111 2003/01/08 12:03:28 simonmar Exp $
dnl
dnl Extra autoconf macros for the Glasgow fptools
dnl
fptools_cv_have_gcc='no'
else
changequote(, )dnl
- is_gcc_v1="`$CC -v 2>&1 | grep 'version ' | sed -e 's/.*version [^0-9]*\([0-9][0-9]*\)\.\([0-9][0-9]*\).*/expr 2000 \\\>= \1 \\\* 1000 + \2/g' `"
+ gcc_version_str="`$CC -v 2>&1 | grep 'version ' | sed -e 's/.*version [^0-9]*\([0-9][0-9]*\)\.\([0-9][0-9]*\).*/\1\.\2/g' `"
changequote([, ])dnl
fptools_cv_have_gcc='yes'
- if test `eval $is_gcc_v1 2>/dev/null` = "1"; then
+ FPTOOLS_PROG_CHECK_VERSION($gcc_version_str, -lt, "2.0",
fptools_cv_have_gcc='no'
echo ""
echo "your gcc version appears to be ..."
echo "gcc prior to 2.0 and have never worked with ghc."
echo "we recommend 2.95.3, although versions back to 2.7.2 should be ok."
AC_MSG_ERROR([gcc 1.X has never been supported])
- fi
+ )
fi
])
HaveGcc=`echo $fptools_cv_have_gcc | sed 'y/yesno/YESNO/'`
AC_SUBST(HaveGcc)
])
+dnl
+dnl Some OSs (Mandrake Linux, in particular) configure GCC with
+dnl -momit-leaf-frame-pointer on by default. If this is the case, we
+dnl need to turn it off for mangling to work. The test is currently a bit
+dnl crude, using only the version number of gcc.
+dnl
+AC_DEFUN(FPTOOLS_GCC_NEEDS_NO_OMIT_LFPTR,
+[AC_CACHE_CHECK([whether gcc needs -mno-omit-leaf-frame-pointer], fptools_cv_gcc_needs_no_omit_lfptr,
+[
+ fptools_cv_gcc_needs_no_omit_lfptr='no'
+ FPTOOLS_PROG_CHECK_VERSION($gcc_version_str, -ge, "3.2",
+ fptools_cv_gcc_needs_no_omit_lfptr='yes')
+])
+if test "$fptools_cv_gcc_needs_no_omit_lfptr" = "yes"; then
+ AC_DEFINE(HAVE_GCC_MNO_OMIT_LFPTR)
+fi
+])
+
dnl Small feature test for perl version. Assumes PerlCmd
dnl contains path to perl binary
dnl
if grep "version 5" conftest.out >/dev/null 2>&1; then
:
else
- if grep "v5.6" conftest.out >/dev/null 2>&1; then
- :
- else
- if grep "version 6" conftest.out >/dev/null 2>&1; then
- :
- else
- echo "Your version of perl probably won't work."
- fi
- fi
+ if grep "v5.6" conftest.out >/dev/null 2>&1; then
+ :
+ else
+ if grep "v5.8" conftest.out >/dev/null 2>&1; then
+ :
+ else
+ if grep "version 6" conftest.out >/dev/null 2>&1; then
+ :
+ else
+ echo "Your version of perl probably won't work."
+ fi
+ fi
+ fi
fi
rm -fr conftest*
])
dnl
AC_DEFUN(FPTOOLS_CHECK_CCONST,
[
-eval "def_name=CCONST_$1"
eval "cv_name=ac_cv_cconst_$1"
AC_MSG_CHECKING(value of $1)
AC_CACHE_VAL($cv_name,
eval "$cv_name=-1")])dnl
eval "fptools_check_cconst_result=`echo '$'{$cv_name}`"
AC_MSG_RESULT($fptools_check_cconst_result)
-AC_DEFINE_UNQUOTED($def_name, $fptools_check_cconst_result)
+AC_DEFINE_UNQUOTED(CCONST_$1, $fptools_check_cconst_result)
unset fptools_check_cconst_result
])
fi
])
-dnl *** Which one comes first, .text or .data? ***
-dnl
-AC_DEFUN(FPTOOLS_CODE_BEFORE_DATA,
-[AC_CACHE_CHECK([if code section appears before data], fptools_cv_code_bef_data,
-[AC_TRY_RUN([
-int f() { return 1; }
-int i;
-int main() { return ((char*)&f > (char*)&i); }
-
-],
-fptools_cv_code_bef_data=yes, fptools_cv_code_bef_data=no,false)])
-if test "$fptools_cv_code_bef_data" = yes; then
- AC_DEFINE(CODE_BEFORE_DATA)
-fi
-])
-
dnl *** Helper function **
dnl
AC_DEFUN(FPTOOLS_IN_SCOPE,
[AC_TRY_LINK([extern char* $1;],[return (int)&$2], $3=yes, $3=no)
])
-dnl *** What's the end-of-text-section marker called? ***
-dnl
-AC_DEFUN([FPTOOLS_END_TEXT_SECTION],
-[AC_CACHE_CHECK([for end of text section marker],
- [fptools_cv_end_of_text],
- [fptools_cv_end_of_text=""
- not_done=1
- for i in data_start _data_start etext _etext __etext; do
- FPTOOLS_IN_SCOPE($i,$i,fptools_end_of_text)
- if test "$fptools_end_of_text" = yes; then
- fptools_cv_end_of_text=$i
- not_done=0
- break
- fi
- done
- if test "$not_done" = 1; then
- FPTOOLS_IN_SCOPE(etext asm("etext"),etext,fptools_end_of_text)
- if test "$fptools_end_of_text" = yes; then
- fptools_cv_end_of_text="etext"
- fi
- fi])
- if test -n "$fptools_cv_end_of_text"; then
- AC_DEFINE_UNQUOTED([TEXT_SECTION_END_MARKER], $fptools_cv_end_of_text)
- else
- AC_DEFINE_UNQUOTED([TEXT_SECTION_END_MARKER], dunno_end_of_text)
- fi
- AC_CACHE_CHECK([for end of text section marker declaration],
- [fptools_cv_end_of_text_decl],
- [fptools_cv_end_of_text_decl=""
- not_done=1
- for i in data_start _data_start etext _etext __etext; do
- FPTOOLS_IN_SCOPE($i,$i,fptools_end_of_text_decl)
- if test "$fptools_end_of_text_decl" = yes; then
- fptools_cv_end_of_text_decl=$i
- not_done=0
- break
- fi
- done
- if test "$not_done" = 1; then
- FPTOOLS_IN_SCOPE(etext asm("etext"),etext,fptools_end_of_text_decl)
- if test "$fptools_end_of_text_decl" = yes; then
- fptools_cv_end_of_text_decl="etext asm(\"etext\")"
- fi
- fi])
- if test -n "$fptools_cv_end_of_text_decl"; then
- AC_DEFINE_UNQUOTED([TEXT_SECTION_END_MARKER_DECL], $fptools_cv_end_of_text_decl)
- else
- AC_DEFINE_UNQUOTED([TEXT_SECTION_END_MARKER_DECL], dunno_end_of_text_decl)
- fi
-])
-
-dnl *** What's the end-of-data-section marker called? ***
-dnl
-AC_DEFUN([FPTOOLS_END_DATA_SECTION],
-[AC_CACHE_CHECK([for end of data section marker],
- [fptools_cv_end_of_data],
- [fptools_cv_end_of_data=""
- not_done=1
- for i in end _end __end; do
- FPTOOLS_IN_SCOPE($i,$i,fptools_end_of_data)
- if test "$fptools_end_of_data" = yes; then
- fptools_cv_end_of_data=$i
- not_done=0
- break
- fi
- done
- if test "$not_done" = 1; then
- FPTOOLS_IN_SCOPE(end asm("end"),end,fptools_end_of_data)
- if test "$fptools_end_of_data" = yes; then
- fptools_cv_end_of_data="end"
- fi
- fi])
- if test -n "$fptools_cv_end_of_data"; then
- AC_DEFINE_UNQUOTED([DATA_SECTION_END_MARKER], $fptools_cv_end_of_data)
- else
- AC_DEFINE_UNQUOTED([DATA_SECTION_END_MARKER], dunno_end_of_data)
- fi
- AC_CACHE_CHECK([for end of data section marker declaration],
- [fptools_cv_end_of_data_decl],
- [fptools_cv_end_of_data_decl=""
- not_done=1
- for i in end _end __end; do
- FPTOOLS_IN_SCOPE($i,$i,fptools_end_of_data_decl)
- if test "$fptools_end_of_data_decl" = yes; then
- fptools_cv_end_of_data_decl=$i
- not_done=0
- break
- fi
- done
- if test "$not_done" = 1; then
- FPTOOLS_IN_SCOPE(end asm("end"),end,fptools_end_of_data_decl)
- if test "$fptools_end_of_data_decl" = yes; then
- fptools_cv_end_of_data_decl="end asm(\"end\")"
- fi
- fi])
- if test -n "$fptools_cv_end_of_data_decl"; then
- AC_DEFINE_UNQUOTED([DATA_SECTION_END_MARKER_DECL], $fptools_cv_end_of_data_decl)
- else
- AC_DEFINE_UNQUOTED([DATA_SECTION_END_MARKER_DECL], dunno_end_of_data_decl)
- fi
-])
-
dnl Based on AC_TRY_LINK - run iftrue if links cleanly with no warning
projects / ghc-hetmet.git / blobdiff