highgui: use forward slash for gl.h include

The backslash causes build failure when cross-compiling with mingw-w64
This commit is contained in:
Tony Theodore 2017-02-06 04:15:10 +11:00
parent a2fed4c790
commit 678e114e5f

View File

@ -65,7 +65,7 @@
#include <vector>
#include <functional>
#include "opencv2/highgui.hpp"
#include <GL\gl.h>
#include <GL/gl.h>
#endif
static const char* trackbar_text =