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-rw-r--r--call/yapp.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/call/yapp.c b/call/yapp.c
index cc61e90..355701f 100644
--- a/call/yapp.c
+++ b/call/yapp.c
@@ -11,6 +11,9 @@
* as published by the Free Software Foundation; either version
* 2 of the license, or (at your option) any later version.
*/
+#define _DEFAULT_SOURCE
+#define _XOPEN_SOURCE
+#define _XOPEN_SOURCE_EXTENDED
/*
* Yapp C and Resume support added by S N Henson.