1.0.21.12: build OS X 10.4-compatible binaries on OS X 10.5

[sbcl.git] / src / runtime / x86-darwin-os.h

diff --git a/src/runtime/x86-darwin-os.h b/src/runtime/x86-darwin-os.h
index edc3a6c..20caa8c 100644 (file)
--- a/src/runtime/x86-darwin-os.h
+++ b/src/runtime/x86-darwin-os.h
@@ -16,12 +16,11 @@ static inline os_context_t *arch_os_get_context(void **void_context)
 void set_data_desc_size(data_desc_t* desc, unsigned long size);
 void set_data_desc_addr(data_desc_t* desc, void* addr);
 
-/* As of XCode 3.0, the field names for the thread state have changed
- * and now are prepended with __. Use some #define hackery to deal
- * with this. MAC_OS_X_VERSION_10_5 seems to be a good test to see if
- * we need the new style field names.
+/* On OS X 10.5, the field names for the thread state have changed and
+ * now are prepended with __. Use some #define hackery to deal with
+ * this.
  */
-#if MAC_OS_X_VERSION_10_5
+#if __DARWIN_UNIX03
 
 #define CONTEXT_ADDR_FROM_STEM(stem) &context->uc_mcontext->__ss.__##stem
 #define EIP __eip
@@ -61,7 +60,7 @@ void set_data_desc_addr(data_desc_t* desc, void* addr);
 #define SS ss
 #define GS gs
 
-#endif /* MAC_OS_X_VERSION_10_5 */
+#endif /* __DARWIN_UNIX03 */