glalpha: fix compilation with msvc

It doesn't define M_PI
2018-06-07 13:58:43 +10:00 · 2018-06-07 13:58:43 +10:00 · 6f04c3ac87
commit 6f04c3ac87
parent 82c43ff9a3
1 changed files with 4 additions and 0 deletions
--- a/ext/gl/gstglalpha.c
+++ b/ext/gl/gstglalpha.c
@ -50,6 +50,10 @@
 #include <math.h>
 #include <gst/gl/gstglfuncs.h>

+#ifndef M_PI
+#define M_PI  3.14159265358979323846
+#endif
+
 GST_DEBUG_CATEGORY_STATIC (glalpha_debug);
 #define GST_CAT_DEFAULT glalpha_debug