glad: Sync with upstream 0.1.34

thirdparty/README.md

@@ -115,7 +115,7 @@ Files extracted from upstream source:
 ## glad
 
 - Upstream: https://github.com/Dav1dde/glad
-- Version: 0.1.33 (2019)
+- Version: 0.1.34 (2020)
 - License: MIT
 
 The files we package are automatically generated.

thirdparty/glad/KHR/khrplatform.h

@@ -119,7 +119,7 @@
  * This follows the return type of the function  and precedes the function
  * name in the function prototype.
  */
-#if defined(_WIN32) && !defined(_WIN32_WCE) && !defined(KHRONOS_STATIC)
+#if defined(_WIN32) && !defined(_WIN32_WCE) && !defined(__SCITECH_SNAP__)
     /* Win32 but not WinCE */
 #   define KHRONOS_APIENTRY __stdcall
 #else

thirdparty/glad/glad.c

@@ -1,6 +1,6 @@
 /*
 
-    OpenGL loader generated by glad 0.1.33 on Tue Nov 12 08:44:22 2019.
+    OpenGL loader generated by glad 0.1.34 on Tue Nov 17 16:41:02 2020.
 
     Language/Generator: C/C++
     Specification: gl

thirdparty/glad/glad/glad.h

@@ -1,6 +1,6 @@
 /*
 
-    OpenGL loader generated by glad 0.1.33 on Tue Nov 12 08:44:22 2019.
+    OpenGL loader generated by glad 0.1.34 on Tue Nov 17 16:41:02 2020.
 
     Language/Generator: C/C++
     Specification: gl