diff --git a/src/kits/mail/cpp_abi_base64.c b/src/kits/mail/cpp_abi_base64.c
index b7e31e68af..c30cccb485 100644
--- a/src/kits/mail/cpp_abi_base64.c
+++ b/src/kits/mail/cpp_abi_base64.c
@@ -3,13 +3,14 @@
 #if __MWERKS__
 	#define encode_base64__local_abi encode_base64__FPcPcx
 	#define decode_base64__local_abi decode_base64__FPcPcxb
+	#define USETHISFILEATALL=1
 #elif __GNUC__ <= 2
 	#define encode_base64__local_abi encode_base64__FPcT0x
 	#define decode_base64__local_abi decode_base64__FPcT0xb
-#else
-	#error "We don't seem to have a C++ ABI hack for your compiler. Please add one."
+	#define USETHISFILEATALL=1	
 #endif
 
+#if USETHISFILEATALL /* If we are using GCC >= 3 or something else, we clearly have given up on binary compat anyway */
 
 ssize_t encode_base64__local_abi(char *out, char *in, off_t length);
 ssize_t decode_base64__local_abi(char *out, char *in, off_t length, char);
@@ -23,3 +24,5 @@ _EXPORT ssize_t decode_base64__local_abi(char *out, char *in, off_t length, char
 	return decode_base64(out,in,length);
 }
 
+#endif
+