diff options
Diffstat (limited to 'sysdeps/x86_64/configure.ac')
| -rw-r--r-- | sysdeps/x86_64/configure.ac | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/sysdeps/x86_64/configure.ac b/sysdeps/x86_64/configure.ac index 57caf63826..112d1542cd 100644 --- a/sysdeps/x86_64/configure.ac +++ b/sysdeps/x86_64/configure.ac @@ -103,5 +103,25 @@ if test $libc_cv_x86_have_apx = yes; then fi LIBC_CONFIG_VAR([have-x86-apx], [$libc_cv_x86_have_apx]) +dnl Check if compiler standard library provides __sfp_handle_exceptions, used on +dnl float128 implementation. +AC_CACHE_CHECK(whether compiler standard library provides __sfp_handle_exceptions, + libc_cv_sfp_handle_exceptions, [dnl +cat > conftest.c <<EOF +int _start (void) { return 0; } +int __start (void) { return 0; } +void __sfp_handle_exceptions (int); +int main (void) { __sfp_handle_exceptions (0); return 0; } +EOF + if AC_TRY_COMMAND(${CC-cc} $CFLAGS $CPPFLAGS $no_ssp -o conftest conftest.c -static -nostartfiles 1>&AS_MESSAGE_LOG_FD); then + libc_cv_sfp_handle_exceptions=yes + else + libc_cv_sfp_handle_exceptions=no + fi + rm -rf conftest*]) +if test x"$libc_cv_sfp_handle_exceptions" == xyes; then + AC_DEFINE(HAVE_X86_64_SFP_HANDLE_EXCEPTIONS) +fi + test -n "$critic_missing" && AC_MSG_ERROR([ *** $critic_missing]) |