Added ifndef/def/endif protection to C headers.
[stripchart.git] / err_mac.h
index 11353e33f85c21ac654bc341bcf1db051f0bf2fc..41730d6a17e3c5286d6beab279fe6589400f4bf1 100644 (file)
--- a/err_mac.h
+++ b/err_mac.h
@@ -23,6 +23,9 @@
   Philadelphia PA 19104, USA.
 */
 
+#ifndef _ERR_MAC_H
+#define _ERR_MAC_H
+
 #include <stdio.h> /* for fprintf(), stderr */
 
 #define SUCCESS 0
@@ -163,3 +166,5 @@ static int err_mac_ans;
       fflush(stderr);                                                 \
     }                                                                 \
   } while(0)
+
+#endif /* _ERR_MAC_H */