* unwind-dw2-fde-glibc.c: Define _GNU_SOURCE if not defined.

[pf3gnuchains/gcc-fork.git] / gcc / unwind-dw2-fde-glibc.c

diff --git a/gcc/unwind-dw2-fde-glibc.c b/gcc/unwind-dw2-fde-glibc.c
index 33c678f..94fe6d1 100644 (file)
--- a/gcc/unwind-dw2-fde-glibc.c
+++ b/gcc/unwind-dw2-fde-glibc.c
@@ -29,6 +29,10 @@
    segment and dl_iterate_phdr to avoid register/deregister calls at
    DSO load/unload.  */
 
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE 1
+#endif
+
 #include "auto-host.h" /* For HAVE_LD_EH_FRAME_HDR.  */
 #include "tconfig.h"
 #ifndef inhibit_libc