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* configure.ac: Set the MCMODEL_MEDIUM conditional to false if

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using a version of gcc before 4.1.
	* configure: Rebuild.
This commit is contained in:
Ian Lance Taylor 2009-12-29 22:49:13 +00:00
parent 250acde31a
commit 084e2665e2
3 changed files with 45 additions and 2 deletions
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6
gold/ChangeLog
View file

@ -1,3 +1,9 @@
2009-12-29 Ian Lance Taylor <iant@google.com>
* configure.ac: Set the MCMODEL_MEDIUM conditional to false if
using a version of gcc before 4.1.
* configure: Rebuild.
2009-12-28 Chris Demetriou <cgd@google.com>
* attributes.cc (Output_attributes_section_data::do_write): Use

27
gold/configure vendored
View file

@ -6045,7 +6045,32 @@ else
fi
if test "$target_cpu" = "x86_64"; then
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for gcc >= 4.1" >&5
$as_echo_n "checking for gcc >= 4.1... " >&6; }
if test "${gold_cv_prog_gcc41+set}" = set; then :
$as_echo_n "(cached) " >&6
else
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
#if !defined __GNUC__
error
#elif __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 1)
error
#endif
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
gold_cv_prog_gcc41=yes
else
gold_cv_prog_gcc41=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gold_cv_prog_gcc41" >&5
$as_echo "$gold_cv_prog_gcc41" >&6; }
if test "$target_cpu" = "x86_64" -a "$gold_cv_prog_gcc41" = "yes"; then
MCMODEL_MEDIUM_TRUE=
MCMODEL_MEDIUM_FALSE='#'
else

14
gold/configure.ac
View file

@ -227,8 +227,20 @@ AM_CONDITIONAL(FN_PTRS_IN_SO_WITHOUT_PIC, [
*) true;;
esac])
dnl Test for gcc 4.1 or later. Full support for -mcmodel=medium is
dnl only available in gcc 4.1.
AC_CACHE_CHECK([for gcc >= 4.1], [gold_cv_prog_gcc41],
[AC_COMPILE_IFELSE([
#if !defined __GNUC__
error
#elif __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 1)
error
#endif
], [gold_cv_prog_gcc41=yes], [gold_cv_prog_gcc41=no])])
dnl Whether we can test -mcmodel=medium.
AM_CONDITIONAL(MCMODEL_MEDIUM, [test "$target_cpu" = "x86_64"])
AM_CONDITIONAL(MCMODEL_MEDIUM,
[test "$target_cpu" = "x86_64" -a "$gold_cv_prog_gcc41" = "yes"])
dnl Test for __thread support.
AC_CACHE_CHECK([for thread support], [gold_cv_c_thread],