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| author | Jakub Jelinek <jakub@redhat.com> | 2022-01-03 17:16:26 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@redhat.com> | 2022-01-03 17:16:26 +0100 |
| commit | 08ae457dfdfff1dcf93033f8cab1d5a1a1a51f52 (patch) | |
| tree | 94f69dad00ff836b1abff85d5d88e6430cb15ecd | |
| parent | 1425c6d36f83cd34e7ea72f3e0f423b6da010ab6 (diff) | |
libquadmath: Use -mno-gnu-attribute in libquadmath
Testing found that we also need libquadmath to be built with
-mno-gnu-attribute, otherwise -mabi=ieeelongdouble programs don't link.
2022-01-03 Jakub Jelinek <jakub@redhat.com>
* configure.ac: Set XCFLAGS to -mno-gnu-attribute on
powerpc64le*-linux*.
* configure: Regenerated.
| -rwxr-xr-x | libquadmath/configure | 24 | ||||
| -rw-r--r-- | libquadmath/configure.ac | 13 |
2 files changed, 37 insertions, 0 deletions
diff --git a/libquadmath/configure b/libquadmath/configure index 6e8e3982594..603f2f13140 100755 --- a/libquadmath/configure +++ b/libquadmath/configure @@ -13096,6 +13096,30 @@ fi XCFLAGS="$XCFLAGS $CET_FLAGS" +case x$target in + xpowerpc64le*-linux*) + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#if __SIZEOF_LONG_DOUBLE__ != 16 + #error long double is double + #endif +int +main () +{ +(void) 0; + ; + return 0; +} +_ACEOF +if ac_fn_c_try_cpp "$LINENO"; then : + XCFLAGS="$XCFLAGS -mno-gnu-attribute" +fi +rm -f conftest.err conftest.i conftest.$ac_ext + ;; + *) + ;; +esac + cat >confcache <<\_ACEOF # This file is a shell script that caches the results of configure diff --git a/libquadmath/configure.ac b/libquadmath/configure.ac index f9d745e60ca..eec4084a45f 100644 --- a/libquadmath/configure.ac +++ b/libquadmath/configure.ac @@ -352,6 +352,19 @@ fi # Add CET specific flags if CET is enabled GCC_CET_FLAGS(CET_FLAGS) XCFLAGS="$XCFLAGS $CET_FLAGS" + +case x$target in + xpowerpc64le*-linux*) + AC_PREPROC_IFELSE( + [AC_LANG_PROGRAM([[#if __SIZEOF_LONG_DOUBLE__ != 16 + #error long double is double + #endif]], + [[(void) 0;]])], + [XCFLAGS="$XCFLAGS -mno-gnu-attribute"]) + ;; + *) + ;; +esac AC_SUBST(XCFLAGS) AC_CACHE_SAVE |