X-Git-Url: https://git.octo.it/?a=blobdiff_plain;ds=sidebyside;f=src%2Futils_math.h;h=9f411dcc11d7e400695ae25204def0d5515a4b30;hb=f021ce36e37def0e39914e92c8ad2ba49c847c6f;hp=08e283189328e41d37303505d2e34db15f9ee54f;hpb=0d448cc6928c5e448bc6b42dfb39fc4c193d4733;p=libopano.git

diff --git a/src/utils_math.h b/src/utils_math.h
index 08e2831..9f411dc 100644
--- a/src/utils_math.h
+++ b/src/utils_math.h
@@ -16,5 +16,9 @@
  *  Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  **/
 
+#ifndef UTILS_MATH_H
+#define UTILS_MATH_H 1
+
 int utils_sqrt2 (int x1, int x2);
-int utils_atan2 (int y, int x);
+
+#endif /* UTILS_MATH_H */