opt-helpers.h: add header guard ifdefs

douglasbagnall · Nov 2, 2017 · cc55443 · cc55443
1 parent be9753c
commit cc55443
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/opt-helpers.h b/opt-helpers.h
@@ -5,6 +5,8 @@ This thinly wraps and extends ccan/opt/opt.h.
 All files that include this are licensed under the GNU General Public License,
 version 2 or greater, due to the ccan/opt link.
 */
+#ifndef HAVE_OPT_HELPERS_H
+#define HAVE_OPT_HELPERS_H
 
 #include "recur-nn.h"
 #include "recur-nn-helpers.h"
@@ -25,3 +27,5 @@ opt_set_floatval01(const char *arg, float *f){
   }
   return msg;
 }
+
+#endif