Fix cpp complications on Arch Linux (#1251)

Author: Alto1772

include/macros.h

@@ -538,7 +538,7 @@ typedef s32 Difficulty2D[AC_DIFFICULTY_LEN][2];
 
 #define DMA_COPY_SEGMENT(segment) dma_copy(segment##_ROM_START, segment##_ROM_END, segment##_VRAM)
 
-#if __STDC_VERSION__ < 202311L
+#if defined(OLD_GCC) || __STDC_VERSION__ < 202311L
 typedef enum {
     false,
     true

include/types.h

@@ -3,10 +3,10 @@
 
 #include "ultra64.h"
 
-#if (defined(__cplusplus) && __cplusplus >= 201103L)
+#if !defined(OLD_GCC) && (defined(__cplusplus) && __cplusplus >= 201103L)
     /* C++11 or later */
     #include <cstddef>
-#elif (defined(__STDC__) && defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 202000L))
+#elif !defined(OLD_GCC) && (defined(__STDC__) && defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 202000L))
     /* C23 or later */
     #include <stddef.h>
 #else