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| author | Jonathan Wakely <jwakely@redhat.com> | 2022-09-20 11:57:28 +0100 |
|---|---|---|
| committer | Jonathan Wakely <jwakely@redhat.com> | 2022-10-03 15:43:48 +0100 |
| commit | f1b51f68f8ac6c63e352dda8599aed01634212de (patch) | |
| tree | 18496da44408ad8f7e0fb72263e2edf7523eb61e /libstdc++-v3/acinclude.m4 | |
| parent | 77d0627c244f7520bf74ec9cf2a8b69c32b6d30d (diff) | |
| download | gcc-f1b51f68f8ac6c63e352dda8599aed01634212de.zip gcc-f1b51f68f8ac6c63e352dda8599aed01634212de.tar.gz gcc-f1b51f68f8ac6c63e352dda8599aed01634212de.tar.bz2 | |
libstdc++: Make _GLIBCXX_HOSTED respect -ffreestanding [PR103626]
This allows the library to switch to freestanding mode when compiling
with the -ffreestanding flag. This means you don't need a separate
libstdc++ build configured with --disable-hosted-libstdcxx in order to
compile for a freestanding environment.
The testsuite support files cannot be compiled for freestanding, so add
-fno-freestanding to override any -ffreestanding in the test flags.
libstdc++-v3/ChangeLog:
PR libstdc++/103626
* acinclude.m4 (GLIBCXX_ENABLE_HOSTED): Define _GLIBCXX_HOSTED
to __STDC_HOSTED__ for non-freestanding installations.
* configure: Regenerate.
* include/Makefile.am (${host_builddir}/c++config.h): Adjust
grep pattern.
* include/Makefile.in: Regenerate.
* testsuite/lib/libstdc++.exp (v3-build_support): Use
-fno-freestanding.
* testsuite/libstdc++-abi/abi.exp: Likewise.
Diffstat (limited to 'libstdc++-v3/acinclude.m4')
| -rw-r--r-- | libstdc++-v3/acinclude.m4 | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libstdc++-v3/acinclude.m4 b/libstdc++-v3/acinclude.m4 index 9aa81e1..1b404d7 100644 --- a/libstdc++-v3/acinclude.m4 +++ b/libstdc++-v3/acinclude.m4 @@ -2992,7 +2992,7 @@ AC_DEFUN([GLIBCXX_ENABLE_HOSTED], [ fi else is_hosted=yes - hosted_define=1 + hosted_define=__STDC_HOSTED__ fi GLIBCXX_CONDITIONAL(GLIBCXX_HOSTED, test $is_hosted = yes) AC_DEFINE_UNQUOTED(_GLIBCXX_HOSTED, $hosted_define, |