Random fixes and additions. Progress with xlib

src/pltf/win32/internal.h

@@ -1,3 +1,5 @@
+#ifdef _WIN32
+
 #ifndef PLTF_WIN32_INTERNAL_H_
 #define PLTF_WIN32_INTERNAL_H_
 
@@ -31,7 +33,8 @@ extern PltfWin32State pltf_state;
 extern HMODULE opengl_module;
 
 bool pltf_has_wgl_extension(const char* name);
-// bool pltf_has_wgl_extension_c_str(const char* name);
 unsigned int vk_to_pltf_key(WPARAM key);
 
 #endif // PLTF_WIN32_INTERNAL_H_
+
+#endif // _WIN32