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-rw-r--r--gcc/config/i386/mach.h11
1 files changed, 9 insertions, 2 deletions
diff --git a/gcc/config/i386/mach.h b/gcc/config/i386/mach.h
index 29039f39948..0aa3846ae21 100644
--- a/gcc/config/i386/mach.h
+++ b/gcc/config/i386/mach.h
@@ -2,8 +2,15 @@
#define TARGET_VERSION fprintf (stderr, " (80386, Mach)");
-#undef CPP_PREDEFINES
-#define CPP_PREDEFINES "-Dunix -DMACH -Asystem=unix -Asystem=mach"
+#define TARGET_OS_CPP_BUILTINS() \
+ do \
+ { \
+ builtin_define_std ("unix"); \
+ builtin_define_std ("MACH"); \
+ builtin_assert ("system=unix"); \
+ builtin_assert ("system=mach"); \
+ } \
+ while (0)
/* Specify extra dir to search for include files. */
#define SYSTEM_INCLUDE_DIR "/usr/mach/include"