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authorFlorian Weimer <fweimer@redhat.com>2021-09-10 13:18:36 +0200
committerFlorian Weimer <fweimer@redhat.com>2021-09-10 13:18:36 +0200
commitc9fef4b7d1d0f2dad192c74f06102752247677a9 (patch)
tree4fa2fad11e23962a872e08a4251017c464eef83c /include/sys
parent27ae52e4d149fc2dc5ef109426753ad3d5126582 (diff)
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_Static_assert needs two arguments for compatibility with GCC before 9
This macro definition enforces two arguments even with newer compilers that accept the single-argument form, too. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Diffstat (limited to 'include/sys')
-rw-r--r--include/sys/cdefs.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/sys/cdefs.h b/include/sys/cdefs.h
index 6a76160..56adb23 100644
--- a/include/sys/cdefs.h
+++ b/include/sys/cdefs.h
@@ -1,5 +1,12 @@
#ifndef _SYS_CDEFS_H
+/* This is outside of _ISOMAC to enforce that _Static_assert always
+ uses the two-argument form. This can be removed once the minimum
+ GCC version used to compile glibc is GCC 9.1. */
+#ifndef __cplusplus
+# define _Static_assert(expr, diagnostic) _Static_assert (expr, diagnostic)
+#endif
+
#include <misc/sys/cdefs.h>
#ifndef _ISOMAC