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authorBruno Haible <bruno@clisp.org>2019-06-21 04:35:41 +0200
committerBruno Haible <bruno@clisp.org>2019-06-21 11:17:47 +0200
commita12c7fd184e8a8251b1a3e9c0f681873995ec204 (patch)
tree7cdfc5f60e90dc73697bfc970e4dce7e62b850f6 /modules/threads-h-tests
parentb6293339816d7df16bb4d31d2ec1c1e5a79f976e (diff)
downloadgnulib-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-tests')
-rw-r--r--modules/threads-h-tests10
1 files changed, 8 insertions, 2 deletions
diff --git a/modules/threads-h-tests b/modules/threads-h-tests
index e4f399d6df..abbd43aca5 100644
--- a/modules/threads-h-tests
+++ b/modules/threads-h-tests
@@ -1,12 +1,18 @@
Files:
tests/test-threads.c
+tests/test-thread_local.c
+tests/macros.h
Depends-on:
threads-h-c++-tests
+thrd
+stdint
configure.ac:
+AC_CHECK_DECLS_ONCE([alarm])
Makefile.am:
-TESTS += test-threads
-check_PROGRAMS += test-threads
+TESTS += test-threads test-thread_local
+check_PROGRAMS += test-threads test-thread_local
test_threads_LDADD = $(LDADD) @LIBSTDTHREAD@
+test_thread_local_LDADD = $(LDADD) @LIBSTDTHREAD@ @LIBTHREADLOCAL@