diff options
| author | Ulrich Drepper <drepper@gmail.com> | 2012-09-09 17:20:42 +0000 |
|---|---|---|
| committer | Jonathan Wakely <jwakely.gcc@gmail.com> | 2012-09-09 17:20:42 +0000 |
| commit | 3dda660e291d13b7900a3cdc535669c4f5924163 (patch) | |
| tree | 8969affc89fdebd06b8f119befc16b15679f6256 /libstdc++-v3/configure.ac | |
| parent | 3b9cec89bc67b45d2850fe9dc9fcd877127794ce (diff) | |
2012-09-09 Ulrich Drepper <drepper@gmail.com>
Dominique d'Humieres <dominiq@lps.ens.fr>
Jack Howarth <howarth@bromo.med.uc.edu>
PR bootstrap/54419
* acinclude.m4: Define GLIBCXX_CHECK_X86_RDRAND.
* configure.ac: Use GLIBCXX_CHECK_X86_RDRAND to test for rdrand
support in assembler.
* src/c++11/random.cc (__x86_rdrand): Depend on _GLIBCXX_X86_RDRAND.
(random_device::_M_init): Likewise.
(random_device::_M_getval): Likewise.
* configure: Regenerated.
* config.h.in: Regenerated.
git-svn-id: https://gcc.gnu.org/svn/gcc/trunk@191111 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'libstdc++-v3/configure.ac')
| -rw-r--r-- | libstdc++-v3/configure.ac | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libstdc++-v3/configure.ac b/libstdc++-v3/configure.ac index 5c86bb97589..555f380495b 100644 --- a/libstdc++-v3/configure.ac +++ b/libstdc++-v3/configure.ac @@ -330,6 +330,9 @@ case "$target" in esac GLIBCXX_CONDITIONAL(GLIBCXX_LDBL_COMPAT, test $ac_ldbl_compat = yes) +# Check if assembler supports rdrand opcode. +GLIBCXX_CHECK_X86_RDRAND + # This depends on GLIBCXX_ENABLE_SYMVERS and GLIBCXX_IS_NATIVE. GLIBCXX_CONFIGURE_TESTSUITE |