Minor fix

6 years ago · 67e94dc1de
parent ffb4a1df67
commit 67e94dc1de
1 changed files with 4 additions and 0 deletions
--- a/src/utils.h
+++ b/src/utils.h
@ -6,6 +6,10 @@
 #include <stdio.h>
 #include <time.h>

+#ifndef M_PI
+#define M_PI       3.14159265358979323846   // pi
+#endif
+
 #ifdef __cplusplus
 extern "C" {
 #endif