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Created attachment 2892 [details]
memset avoidance patch for SDL_windowsopengl.c

With VS2005 when building for x64 (didn't try other MSVC versions):
1>SDL_windowsopengl.obj : error LNK2019: unresolved external symbol memset referenced in function WIN_GL_CreateContext

If I remove the 0 terminator from attribs[15] array (because you're
already adding it later) then it is good, but this time win32 fails
the same way instead.

My solution is changing it like the following, which works for both
x86 and x64:

--- SDL2/src/video/windows/SDL_windowsopengl.c.orig
+++ SDL2/src/video/windows/SDL_windowsopengl.c
@@ -727,16 +727,19 @@ WIN_GL_CreateContext(_THIS, SDL_Window *
         if (!wglCreateContextAttribsARB) {
             SDL_SetError("GL 3.x is not supported");
             context = temp_context;
         } else {
         /* max 14 attributes plus terminator */
-            int attribs[15] = {
-                WGL_CONTEXT_MAJOR_VERSION_ARB, _this->gl_config.major_version,
-                WGL_CONTEXT_MINOR_VERSION_ARB, _this->gl_config.minor_version,
-                0
-            };
-            int iattr = 4;
+            int attribs[15];
+            int iattr;
+
+            attribs[0] = WGL_CONTEXT_MAJOR_VERSION_ARB;
+            attribs[1] = _this->gl_config.major_version;
+            attribs[2] = WGL_CONTEXT_MINOR_VERSION_ARB;
+            attribs[3] = _this->gl_config.minor_version;
+
+            iattr = 4;
 
             /* SDL profile bits match WGL profile bits */
             if (_this->gl_config.profile_mask != 0) {
                 attribs[iattr++] = WGL_CONTEXT_PROFILE_MASK_ARB;
                 attribs[iattr++] = _this->gl_config.profile_mask;