diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 973fe59e81..c5c4b383a3 100644 --- a/configure.ac +++ b/configure.ac @@ -1488,6 +1488,16 @@ if test -n "$submachine"; then fi AC_SUBST(libc_cv_cc_submachine) +dnl Determine if compiler supports -fsignaling-nans +AC_CACHE_CHECK([for compiler option that -fsignaling-nans], + libc_cv_cc_signaling_nans, [dnl +LIBC_TRY_CC_OPTION([-Werror -fsignaling-nans], + [libc_cv_cc_signaling_nans=-fsignaling-nans], + [libc_cv_cc_signaling_nans=]) +]) +LIBC_CONFIG_VAR([config-cflags-signaling-nans], + [$libc_cv_cc_signaling_nans]) + AC_CACHE_CHECK(if $CC accepts -fno-tree-loop-distribute-patterns with \ __attribute__ ((__optimize__)), libc_cv_cc_loop_to_function, [dnl cat > conftest.c <<EOF |