--- /usr/local/arm-apple-darwin/include/TargetConditionals.h    2008-02-15 11:41:03.000000000 +0900
+++ TargetConditionals.h        2008-02-15 12:48:10.000000000 +0900
@@ -106,6 +106,21 @@
         #define TARGET_RT_LITTLE_ENDIAN 1
         #define TARGET_RT_BIG_ENDIAN    0
         #define TARGET_RT_64_BIT        0
+    #elif defined(__arm__)
+        #define TARGET_CPU_PPC          0
+        #define TARGET_CPU_PPC64        0
+        #define TARGET_CPU_68K          0
+        #define TARGET_CPU_X86          0
+        #define TARGET_CPU_X86_64       0
+        #define TARGET_CPU_MIPS         0
+        #define TARGET_CPU_SPARC        0
+        #define TARGET_CPU_ALPHA        0
+        #define TARGET_CPU_ARM          1 
+        #define TARGET_RT_MAC_CFM       0
+        #define TARGET_RT_MAC_MACHO     1
+        #define TARGET_RT_LITTLE_ENDIAN 1
+        #define TARGET_RT_BIG_ENDIAN    0
+        #define TARGET_RT_64_BIT        0 
     #else
         #error unrecognized GNU C compiler
     #endif