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Limit catopen usage to unix-like OSes 

Operating systems that are not unix-like are unlikely to have access to
catopen. Instead of black-listing each one, we now filter out all non-unix
operating systems first. We then exclude the unix-like operating systems
that don't have catopen. _WIN32 counts as a unix-like operating system
because of cygwin.

http://reviews.llvm.org/D16639

llvm-svn: 260381
This commit is contained in:
Ben Craig 2016-02-10 13:47:25 +00:00
parent 156ed8ddd7
commit d32611211d
1 changed files with 4 additions and 2 deletions
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6
libcxx/include/__config
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@ -719,10 +719,12 @@ template <unsigned> struct __static_assert_check {};
#define _LIBCPP_LOCALE__L_EXTENSIONS 1
#endif
#if !defined(_WIN32) && !defined(__ANDROID__) && !defined(_NEWLIB_VERSION) && \
!defined(__CloudABI__)
#if defined(__unix__) || (defined(__APPLE__) && defined(__MACH__))
// Most unix variants have catopen. These are the specific ones that don't.
#if !defined(_WIN32) && !defined(__ANDROID__) && !defined(_NEWLIB_VERSION)
#define _LIBCPP_HAS_CATOPEN 1
#endif
#endif
#ifdef __FreeBSD__
#define _DECLARE_C99_LDBL_MATH 1