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| author | Bruno Haible <bruno@clisp.org> | 2019-06-21 04:35:41 +0200 |
|---|---|---|
| committer | Bruno Haible <bruno@clisp.org> | 2019-06-21 11:17:47 +0200 |
| commit | a12c7fd184e8a8251b1a3e9c0f681873995ec204 (patch) | |
| tree | 7cdfc5f60e90dc73697bfc970e4dce7e62b850f6 /modules/threads-h | |
| parent | b6293339816d7df16bb4d31d2ec1c1e5a79f976e (diff) | |
| download | gnulib-a12c7fd184e8a8251b1a3e9c0f681873995ec204.tar.gz | |
threads-h: Define 'thread_local' if and only it actually works.
* m4/threads.m4 (gl_THREAD_LOCAL_DEFINITION): New macro.
(gl_THREADS_H): Define _Thread_local to __thread also for ARM C, IBM C,
Oracle Solaris Studio C. Compile a simple program, to see whether
_Thread_local basically works. Set HAVE_THREAD_LOCAL and LIBTHREADLOCAL.
(gl_THREADS_H_DEFAULTS): Initialize HAVE_THREAD_LOCAL.
* lib/threads.in.h (thread_local): Undefine if it does not work.
* modules/threads-h (Makefile.am): Substitute HAVE_THREAD_LOCAL.
(Link): Mention LIBTHREADLOCAL.
* tests/test-threads.c: Don't check that thread_local is defined.
* tests/test-thread_local.c: New file.
* modules/threads-h-tests (Files): Add it and macros.h.
(Depends-on): Add thrd and stdint.
(configure.ac): Test whether 'alarm' is declared.
(Makefile.am): Arrange to build and link test-thread_local.
* doc/posix-headers/threads.texi: Mention the platforms that don't
support 'thread_local'.
Diffstat (limited to 'modules/threads-h')
| -rw-r--r-- | modules/threads-h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/modules/threads-h b/modules/threads-h index 238955c6b5..c5af53e812 100644 --- a/modules/threads-h +++ b/modules/threads-h @@ -50,6 +50,7 @@ threads.h: threads.in.h $(top_builddir)/config.status $(CXXDEFS_H) $(_NORETURN_H -e 's/@''GNULIB_MTX''@/$(GNULIB_MTX)/g' \ -e 's/@''GNULIB_THRD''@/$(GNULIB_THRD)/g' \ -e 's/@''GNULIB_TSS''@/$(GNULIB_TSS)/g' \ + -e 's|@''HAVE_THREAD_LOCAL''@|$(HAVE_THREAD_LOCAL)|g' \ -e 's|@''BROKEN_THRD_START_T''@|$(BROKEN_THRD_START_T)|g' \ -e 's|@''REPLACE_THRD_CREATE''@|$(REPLACE_THRD_CREATE)|g' \ -e 's|@''REPLACE_THRD_CURRENT''@|$(REPLACE_THRD_CURRENT)|g' \ @@ -65,6 +66,7 @@ Include: <threads.h> Link: +$(LIBTHREADLOCAL) if you use the thread_local macro License: LGPLv2+ |