diff options
Diffstat (limited to 'gold/configure.ac')
| -rw-r--r-- | gold/configure.ac | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/gold/configure.ac b/gold/configure.ac index eca4f01..6e3978b 100644 --- a/gold/configure.ac +++ b/gold/configure.ac @@ -372,6 +372,26 @@ dnl Whether we can test -mcmodel=medium. AM_CONDITIONAL(MCMODEL_MEDIUM, [test "$target_cpu" = "x86_64" -a "$have_mcmodel_medium" = "yes" -a "$gold_cv_prog_gcc41" = "yes"]) +dnl Test for gcc 9 or later. Some incremental tests fail with GCC 9 or +dnl later. +AC_CACHE_CHECK([for gcc >= 9], [gold_cv_prog_gcc9], +[AC_COMPILE_IFELSE([AC_LANG_SOURCE([ +#if !defined __GNUC__ || __GNUC__ < 9 +error +#endif +])], [gold_cv_prog_gcc9=yes], [gold_cv_prog_gcc9=no])]) +AM_CONDITIONAL(GCC9, [test "$gold_cv_prog_gcc9" = "yes"]) + +dnl Test for -fcf-protection on x86-64. Some incremental tests fail with +dnl -fcf-protection. +AC_CACHE_CHECK([for -fcf-protection], [gold_cv_cflags_cf_protection], +[AC_COMPILE_IFELSE([AC_LANG_SOURCE([ +#if !defined __x86_64__ || !defined __CET__ +error +#endif +])], [gold_cv_cflags_cf_protection=yes], [gold_cv_cflags_cf_protection=no])]) +AM_CONDITIONAL(CFLAGS_CF_PROTECTION, [test "$gold_cv_cflags_cf_protection" = "yes"]) + AC_CACHE_CHECK([whether $CC supports -fmerge-constants], [gold_cv_merge_constants], [ save_CFLAGS="$CFLAGS" |