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| author | Richard Sandiford <richard@codesourcery.com> | 2007-10-03 14:16:57 +0000 |
|---|---|---|
| committer | Kazu Hirata <kazu@gcc.gnu.org> | 2007-10-03 14:16:57 +0000 |
| commit | b6f914f633d45a1f8cae627a52f60f20d6fdf021 (patch) | |
| tree | 5cd207e557ef35d5ff0fb9416fe61097d15d6d8d /config | |
| parent | 6d2c26dec4f9bc41c92f25326cedb60509d2aa1a (diff) | |
| download | gcc-b6f914f633d45a1f8cae627a52f60f20d6fdf021.tar.gz | |
no-executables.m4 (GCC_TRY_COMPILE_OR_LINK): New function.
config/
* no-executables.m4 (GCC_TRY_COMPILE_OR_LINK): New function.
libstdc++-v3/
libstdc++/
* acinclude.m4 (GLIBCXX_ENABLE_C99): Temporarily add
-fno-exceptions to CXXFLAGS. Use GCC_TRY_COMPILE_OR_LINK.
Make the tests assign results to volatile variables. Use -lm
for link tests in GCC_TRY_COMPILE_OR_LINK. Fall back to
compile-only tests if -lm is not available.
* configure: Regenerate.
From-SVN: r128982
Diffstat (limited to 'config')
| -rw-r--r-- | config/ChangeLog | 5 | ||||
| -rw-r--r-- | config/no-executables.m4 | 8 |
2 files changed, 13 insertions, 0 deletions
diff --git a/config/ChangeLog b/config/ChangeLog index 089fc82b2d7..add98751de9 100644 --- a/config/ChangeLog +++ b/config/ChangeLog @@ -1,3 +1,8 @@ +2007-10-03 Richard Sandiford <richard@codesourcery.com> + + * no-executables.m4 (GCC_TRY_COMPILE_OR_LINK): New function. + libstdc++-v3/ + 2007-10-03 Kazu Hirata <kazu@codesourcery.com> Revert: diff --git a/config/no-executables.m4 b/config/no-executables.m4 index 54e5a024288..c4d0b70c375 100644 --- a/config/no-executables.m4 +++ b/config/no-executables.m4 @@ -59,3 +59,11 @@ fi) m4_divert_pop()dnl ])# GCC_NO_EXECUTABLES + +# Use the strongest available test out of AC_TRY_COMPILE and AC_TRY_LINK. +AC_DEFUN([GCC_TRY_COMPILE_OR_LINK], +[if test x$gcc_no_link = xyes; then + AC_TRY_COMPILE([$1], [$2], [$3], [$4]) +else + AC_TRY_LINK([$1], [$2], [$3], [$4]) +fi]) |