On 22/09/16 09:41 +0200, Sebastian Huber wrote:
libstdc++-v3/
        * config/cpu/m68k/atomicity.h: Adjust comment.
        * acinclude.m4 (GLIBCXX_ENABLE_ATOMIC_BUILTINS): Honor
        explicit atomicity_dir setup via configure.host.
        * configure.host (rtems-*): Set atomicity_dir.
        * configure: Regenerate.
---
libstdc++-v3/acinclude.m4                |  5 +++--
libstdc++-v3/config/cpu/m68k/atomicity.h |  3 +++
libstdc++-v3/configure                   | 11 ++++++-----
libstdc++-v3/configure.host              |  4 ++++
4 files changed, 16 insertions(+), 7 deletions(-)

diff --git a/libstdc++-v3/acinclude.m4 b/libstdc++-v3/acinclude.m4
index 6d897be..3256ce4 100644
--- a/libstdc++-v3/acinclude.m4
+++ b/libstdc++-v3/acinclude.m4
@@ -3490,9 +3490,10 @@ EOF
  AC_LANG_RESTORE

  # Set atomicity_dir to builtins if all but the long long test above passes.
-  if test "$glibcxx_cv_atomic_bool" = yes \
+  if ( test "$glibcxx_cv_atomic_bool" = yes \
     && test "$glibcxx_cv_atomic_short" = yes \
-     && test "$glibcxx_cv_atomic_int" = yes; then
+     && test "$glibcxx_cv_atomic_int" = yes ) \
+     || test "$atomicity_dir" = "cpu/generic/atomicity_builtins"; then

Could you adjust the comment too please? Maybe something like:

  # Set atomicity_dir to builtins if all but the long long test above passes,
  # or if the builtins were already chosen (e.g. by configure.host).

OK with an adjusted comment, thanks.



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