Updates to Win32 context re-creation logic.

src/win32/win32_window.c

@@ -1342,7 +1342,13 @@ int _glfwPlatformOpenWindow(_GLFWwindow* window,
     if (!createWindow(window, wndconfig, fbconfig))
         return GL_FALSE;
 
-    if (wndconfig->glMajor > 2)
+    if (wndconfig->glMajor != 1 || wndconfig->glMinor != 0)
+    {
+        if (window->WGL.has_WGL_ARB_create_context)
+            recreateContext = GL_TRUE;
+    }
+
+    if (wndconfig->glForward || wndconfig->glDebug)
     {
         if (!window->WGL.has_WGL_ARB_create_context)
         {
@@ -1353,6 +1359,17 @@ int _glfwPlatformOpenWindow(_GLFWwindow* window,
         recreateContext = GL_TRUE;
     }
 
+    if (wndconfig->glProfile)
+    {
+        if (!window->WGL.has_WGL_ARB_create_context_profile)
+        {
+            _glfwSetError(GLFW_VERSION_UNAVAILABLE);
+            return GL_FALSE;
+        }
+
+        recreateContext = GL_TRUE;
+    }
+
     if (fbconfig->samples > 0)
     {
         // We want FSAA, but can we get it?