Added missing calling convention to intel workaround for Win32

glfw/glow-extras/glfw/GlfwApp.cc

@@ -515,7 +515,14 @@ int GlfwApp::run(int argc, char *argv[])
     glfwMakeContextCurrent(mWindow);
 
     // WORKAROUND for Intel bug (3.3 available but 3.0 returned UNLESS explicitly requested)
-    using glGetIntegerFunc = void(GLenum, GLint *);
+#define GL_CALL
+#ifdef GLOW_COMPILER_MSVC
+#if _WIN32
+#undef GL_CALL
+#define GL_CALL __stdcall // 32bit windows needs a special calling convention
+#endif
+#endif
+    using glGetIntegerFunc = void GL_CALL(GLenum, GLint *);
     auto getGlInt = (glGetIntegerFunc *)glfwGetProcAddress("glGetIntegerv");
     GLint gmajor, gminor;
     getGlInt(GL_MAJOR_VERSION, &gmajor);