--- /usr/local/src/packages/gcc/subversions/gcc-3.2.2/gcc/cppdefault.h	2001-10-14 09:35:07.000000000 +0200
+++ gcc-3.2.2/gcc/cppdefault.h	2003-04-28 23:53:48.000000000 +0200
@@ -38,6 +38,7 @@
 #undef LOCAL_INCLUDE_DIR
 #undef SYSTEM_INCLUDE_DIR
 #undef STANDARD_INCLUDE_DIR
+#undef PREFIX_INCLUDE_DIR
 #else
 #undef CROSS_INCLUDE_DIR
 #endif