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Disable thread_local on clang for FreeBSD

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FreeBSD's clang currently is not able to handle thread_local calls due
to linker errors on __cxa_thread_atexit. The patch disables the
define Q_COMPILER_THREAD_LOCAL for clang __FreeBSD__ only, no functional
change. Otherwise, linking the tst_compiler autotest will fail.

For details, see
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=192320

Change-Id: I2395c06499d4821213e2154769ccbeed3dcf1ffe
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
This commit is contained in:
Ralf Nolden 2016-05-25 11:51:52 +02:00
parent 0e70d35f15
commit c85f988fc7
1 changed files with 3 additions and 1 deletions
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4
src/corelib/global/qcompilerdetection.h
View File

@ -699,7 +699,9 @@
# define Q_COMPILER_TEMPLATE_ALIAS
# endif
# if __has_feature(cxx_thread_local)
# define Q_COMPILER_THREAD_LOCAL
# if !defined(__FreeBSD__) /* FreeBSD clang fails on __cxa_thread_atexit */
# define Q_COMPILER_THREAD_LOCAL
# endif
# endif
# if __has_feature(cxx_user_literals)
# define Q_COMPILER_UDL