diff options
| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2022-03-24 14:24:08 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2024-04-17 16:12:40 -0300 |
| commit | e66d55582371553254d4e1893c0a43faf7bce001 (patch) | |
| tree | c1489467180b22cdd6e8defb39c635da9097d25c /configure.ac | |
| parent | 932dda54e72f468f287ec3c8176598830757e334 (diff) | |
| download | glibc-e66d55582371553254d4e1893c0a43faf7bce001.tar.gz glibc-e66d55582371553254d4e1893c0a43faf7bce001.tar.xz glibc-e66d55582371553254d4e1893c0a43faf7bce001.zip | |
math: Only build tests for _Complex __int128 iff compiler supports it
clang fails building test-tgmath3-atan2.c: error: '_Complex __int128' is invalid _Complex __int128 var__Complex___int128 __attribute__ ((unused)); since it does not support _Complex with __int128. So disable the test in such case.
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index ff3f62c063..2f90025a1a 100644 --- a/configure.ac +++ b/configure.ac @@ -1491,6 +1491,23 @@ LIBC_TRY_CC_OPTION([-Werror -ffloat-store], LIBC_CONFIG_VAR([config-cflags-float-store], [$libc_cv_cc_float_store]) +AC_CACHE_CHECK([whether compiler supports _Complex with __int128], + [libc_cv_complex_int128], [dnl +cat > conftest.c <<EOF +#ifndef __SIZEOF_INT128__ +# error "__int128 not supported" +#endif +_Complex __int128 var; +EOF +libc_cv_complex_int128=no +if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS -c conftest.c 1>&AS_MESSAGE_LOG_FD]) +then + libc_cv_complex_int128=yes +fi +rm -f conftest*]) +LIBC_CONFIG_VAR([config-complex-int128], + [$libc_cv_complex_int128]) + 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 |