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authorShawn Landden <shawn@churchofgit.com>2013-12-15 16:24:14 -0800
committerLennart Poettering <lennart@poettering.net>2013-12-17 21:45:43 +0100
commitec202eae8e84a4c99f054f771cb832046cb8769f (patch)
tree3342ddcf1d386c7f613b60e3d72477580eb7ba06 /src/shared/macro.h
parent06db8540cdfc8259423ed90e7352dbc1d71eccd9 (diff)
__thread --> thread_local for C11 compat
Also make thread_local available w/o including <threads.h>. (as the latter hasn't been implemented, but this part is trivial)
Diffstat (limited to 'src/shared/macro.h')
-rw-r--r--src/shared/macro.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/src/shared/macro.h b/src/shared/macro.h
index fd3762eed4..2b5b3fdfe0 100644
--- a/src/shared/macro.h
+++ b/src/shared/macro.h
@@ -300,5 +300,17 @@ do { \
_found; \
})
+/* Define C11 thread_local attribute even on older compilers */
+#ifndef thread_local
+/*
+ * Don't break on glibc < 2.16 that doesn't define __STDC_NO_THREADS__
+ * see http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53769
+ */
+#if __STDC_VERSION__ >= 201112L && !(defined(__STDC_NO_THREADS__) || (defined(__GNU_LIBRARY__) && __GLIBC__ == 2 && __GLIBC_MINOR__ < 16))
+#define thread_local _Thread_local
+#else
+#define thread_local __thread
+#endif
+#endif
#include "log.h"