ext/gl: Don't define boolean on Windows with MSVC

The headers we include already define boolean on Windows with MSVC, and
it leads to a typedef redefinition error with jpeglib.h which tries to
redefine it in jmorecfg.h

diff --git a/ext/gl/gstgloverlay.c b/ext/gl/gstgloverlay.c
index e7b4c0a..b39baf4 100644 (file)
--- a/ext/gl/gstgloverlay.c
+++ b/ext/gl/gstgloverlay.c
@@ -44,6 +44,9 @@
 
 #include <stdio.h>
 #include <stdlib.h>
+#ifdef _MSC_VER
+#define HAVE_BOOLEAN
+#endif
 #include <jpeglib.h>
 #include <png.h>