1 files changed, 22 insertions, 0 deletions
diff --git a/src/mgl.h b/src/mgl.h
index f8d2d8db9..6f10078a0 100644
--- a/src/mgl.h
+++ b/src/mgl.h
@@ -50,6 +50,28 @@
 #define GL_MAX_ELEMENTS_INDICES           0x80E9
 #endif
 
+#ifndef GL_DEBUG_OUTPUT
+#define GL_DEBUG_OUTPUT_SYNCHRONOUS       0x8242
+#define GL_DEBUG_OUTPUT                   0x92E0
+#define GL_DEBUG_SOURCE_API               0x8246
+#define GL_DEBUG_SOURCE_WINDOW_SYSTEM     0x8247
+#define GL_DEBUG_SOURCE_SHADER_COMPILER   0x8248
+#define GL_DEBUG_SOURCE_THIRD_PARTY       0x8249
+#define GL_DEBUG_SOURCE_APPLICATION       0x824A
+#define GL_DEBUG_SOURCE_OTHER             0x824B
+#define GL_DEBUG_TYPE_ERROR               0x824C
+#define GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR 0x824D
+#define GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR  0x824E
+#define GL_DEBUG_TYPE_PORTABILITY         0x824F
+#define GL_DEBUG_TYPE_PERFORMANCE         0x8250
+#define GL_DEBUG_TYPE_OTHER               0x8251
+#define GL_DEBUG_TYPE_MARKER              0x8268
+#define GL_DEBUG_SEVERITY_NOTIFICATION    0x826B
+#define GL_DEBUG_SEVERITY_HIGH            0x9146
+#define GL_DEBUG_SEVERITY_MEDIUM          0x9147
+#define GL_DEBUG_SEVERITY_LOW             0x9148
+#endif
+
 #define defNameE(name) extern name##_t m##name
 
 typedef void (APIENTRY *glGenRenderbuffers_t)(GLsizei, GLuint *);