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Bug 1073709 - Disable C++11 <atomic> when using GCC with libc++. r=waldo

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This commit is contained in:
Jan Beich 2014-09-26 15:15:00 +02:00
parent b6f78246ff
commit 96a0c24b2a
1 changed files with 3 additions and 1 deletions
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4
mfbt/Atomics.h
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@ -34,10 +34,12 @@
* loose typing of the atomic builtins. GCC 4.5 and 4.6 lacks inline * loose typing of the atomic builtins. GCC 4.5 and 4.6 lacks inline
* definitions for unspecialized std::atomic and causes linking errors. * definitions for unspecialized std::atomic and causes linking errors.
* Therefore, we require at least 4.7.0 for using libstdc++. * Therefore, we require at least 4.7.0 for using libstdc++.
*
* libc++ <atomic> is only functional with clang.
*/ */
# if MOZ_USING_LIBSTDCXX && MOZ_LIBSTDCXX_VERSION_AT_LEAST(4, 7, 0) # if MOZ_USING_LIBSTDCXX && MOZ_LIBSTDCXX_VERSION_AT_LEAST(4, 7, 0)
# define MOZ_HAVE_CXX11_ATOMICS # define MOZ_HAVE_CXX11_ATOMICS
# elif MOZ_USING_LIBCXX # elif MOZ_USING_LIBCXX && defined(__clang__)
# define MOZ_HAVE_CXX11_ATOMICS # define MOZ_HAVE_CXX11_ATOMICS
# endif # endif
/* /*