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Disable the use of __thread with MinGW.

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__thread keyword doesn't work correctly with at least some MinGW builds and in
particular TLS unit tests failed with the official 4.4 version.

Disable the use of __thread with MinGW entirely for now to be sure that the
generated code behaves correctly. In the future we should white list the known
good versions of MinGW and/or use run-time test for __thread support in
configure instead of compile-time one only.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@65747 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
2010-10-03 17:16:15 +00:00
parent 1b2f7b6d75
commit 2c5c9c27de
1 changed files with 4 additions and 4 deletions
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8
include/wx/tls.h
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@@ -22,10 +22,10 @@
#if !wxUSE_THREADS
#define wxHAS_COMPILER_TLS
#define wxTHREAD_SPECIFIC_DECL
// __thread keyword is supported if configure detected it or when using mingw32
// >= 4.3 which is known to have it too
#elif defined(HAVE___THREAD_KEYWORD) || \
(defined(__MINGW32__) && wxCHECK_GCC_VERSION(4, 3))
// __thread keyword is not supported correctly by MinGW, at least in some
// configurations, see http://sourceforge.net/support/tracker.php?aid=2837047
// and when in doubt we prefer to not use it at all.
#elif defined(HAVE___THREAD_KEYWORD) && !defined(__MINGW32__)
#define wxHAS_COMPILER_TLS
#define wxTHREAD_SPECIFIC_DECL __thread
// MSVC has its own version which might be supported by some other Windows