From d8cfb8f64d3ba3012a9077080cb2e88ae73dbd97 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=D0=91=D1=80=D0=B0=D0=BD=D0=B8=D0=BC=D0=B8=D1=80=20=D0=9A?=
 =?UTF-8?q?=D0=B0=D1=80=D0=B0=D1=9F=D0=B8=D1=9B?=
 <branimirkaradzic@gmail.com>
Date: Fri, 22 Jan 2021 07:33:59 -0800
Subject: [PATCH] Fixed issue #2368.

---
 src/renderer_gl.h | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/renderer_gl.h b/src/renderer_gl.h
index 78126806d..7325a0514 100644
--- a/src/renderer_gl.h
+++ b/src/renderer_gl.h
@@ -624,7 +624,7 @@ typedef uint64_t GLuint64;
 #	define GL_MAX_SAMPLES 0x8D57
 #endif // GL_MAX_SAMPLES
 
-#ifndef GL_MAX_SAMPLES_IMG 
+#ifndef GL_MAX_SAMPLES_IMG
 #   define GL_MAX_SAMPLES_IMG 0x9135
 #endif // GL_MAX_SAMPLES_IMG
 
@@ -981,6 +981,10 @@ typedef uint64_t GLuint64;
 #	define GL_COMMAND_BARRIER_BIT 0x00000040
 #endif // GL_COMMAND_BARRIER_BIT
 
+#ifndef GL_FIRST_VERTEX_CONVENTION
+#	define GL_FIRST_VERTEX_CONVENTION 0x8E4D
+#endif // GL_FIRST_VERTEX_CONVENTION
+
 // _KHR or _ARB...
 #define GL_DEBUG_OUTPUT_SYNCHRONOUS         0x8242
 #define GL_DEBUG_NEXT_LOGGED_MESSAGE_LENGTH 0x8243