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Changed preprocessor statements to provide clarity.

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git-svn-id: svn://svn.code.sf.net/p/loki-lib/code/trunk@1087 7ec92016-0320-0410-acc4-a06ded1c099a
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rich_sposato 2011-06-21 03:35:30 +00:00
parent 1137319d54
commit 4a7c383116
1 changed files with 19 additions and 10 deletions
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29
include/loki/ThreadLocal.h
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@ -20,19 +20,28 @@
// First assume the compiler does allow thread-local storage by #defining the
// macro which allows compiler to see the code inside this file.
// Then #undef the macro for compilers which are known for not supporting
// thread-local storage.
// Then #undef the macro for compilers which do not support thread-local
// storage or do not implement it correctly.
#define LOKI_THINKS_COMPILER_ALLOWS_THREAD_LOCAL_STORAGE 1
// The __APPLE__ macro does not refer to a compiler, but to the Apple OSX operating system.
#if defined( __APPLE__ )
#warning "GCC for Apple does not allow thread_local storage, so you can not use some parts of Loki."
#undef COMPILER_ALLOWS_THREAD_LOCAL_STORAGE
#endif
#if defined( __GNUC__ )
// The __APPLE__ macro does not refer to a compiler, but to the Apple OSX operating system.
#if defined( __APPLE__ )
#warning "GCC for Apple does not allow thread_local storage, so you can not use some parts of Loki."
#undef COMPILER_ALLOWS_THREAD_LOCAL_STORAGE
#if ( defined( __CYGWIN__ ) && ( __GNUC__ <= 3 ) )
#warning "Older versions of GCC for Cygwin do not allow thread_local storage, so you can not use some parts of Loki."
#undef COMPILER_ALLOWS_THREAD_LOCAL_STORAGE
#elif defined( __CYGWIN__ )
#if ( __GNUC__ <= 3 )
#warning "Older versions of GCC for Cygwin do not allow thread_local storage, so you can not use some parts of Loki."
#undef COMPILER_ALLOWS_THREAD_LOCAL_STORAGE
#endif
#elif ( __GNUC__ == 4 ) // GNU versions other than Cygwin.
#if ( __GNUC_MINOR__ == 4 )
#warning "GCC version 4.4 implements thread_local storage incorrectly, so you can not use some parts of Loki."
#undef COMPILER_ALLOWS_THREAD_LOCAL_STORAGE
#endif
#endif
#endif
#if defined( LOKI_THINKS_COMPILER_ALLOWS_THREAD_LOCAL_STORAGE ) && !defined( LOKI_THREAD_LOCAL )