strerror_r(3) requires #define _XOPEN_SOURCE 600

diff --git a/man3/strerror.3 b/man3/strerror.3
index a7a7ed5710a0e24aee42002d18f1a94f52f7b387..a20998a95be25a2ff7d1e7f94a2c36d5506539b4 100644 (file)
--- a/man3/strerror.3
+++ b/man3/strerror.3
@@ -39,7 +39,10 @@ strerror, strerror_r \- return string describing error code
 .B #include <string.h>
 .sp
 .BI "char *strerror(int " errnum );
-.br
+.sp
+.B #define _XOPEN_SOURCE 600
+.B #include <string.h>
+.sp
 .BI "int strerror_r(int " errnum ", char *" buf ", size_t " n );
 .fi
 .SH DESCRIPTION