Support building on FreeBSD
SetFlags.cmake Add -lexecinfo to linker flags for FreeBSD to resolve backtrace() lib/sqlite/CMakeLists.txt Define _XOPEN_SOURCE to 600 instead of __POSIX_VISIBLE to 200112 for POSIX 1-2001 support. For POSIX standards, the _XOPEN_SOURCE define controls the eventual value of __POSIX_VISIBLE. _XOPEN_SOURCE is defined to 500 in sqlite.c if not already defined, which sets up _POSIX_C_SOURCE and __POSIX_VISIBLE to the 199506 for POSIX.1c lib/tolua++/CMakeLists.txt src/CMakeLists.txt Add /usr/local/lib to the library search path for FreeBSD builds src/OSSupport/Errors.cpp Correct the strerror_r() implementation determination to check whether _GNU_SOURCE is defined, not what it evaluates to
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@@ -22,7 +22,7 @@ AString GetOSErrorString( int a_ErrNo)
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// According to http://linux.die.net/man/3/strerror_r there are two versions of strerror_r():
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#if !defined(__APPLE__) && ( _GNU_SOURCE) && !defined(ANDROID_NDK) // GNU version of strerror_r()
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#if !defined(__APPLE__) && defined( _GNU_SOURCE) && !defined(ANDROID_NDK) // GNU version of strerror_r()
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char * res = strerror_r( errno, buffer, ARRAYCOUNT(buffer));
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if (res != nullptr)
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