Added an additional #ifndef based on comments by Jarkko and

John Malmberg.

p4raw-id: //depot/perl@28765

diff --git a/x2p/INTERN.h b/x2p/INTERN.h
index 471093f..2933294 100644 (file)
--- a/x2p/INTERN.h
+++ b/x2p/INTERN.h
@@ -12,7 +12,9 @@
 #ifdef __cplusplus
 #  define EXTERN_C extern "C"
 #else
-#  define EXTERN_C
+#  ifndef EXTERN_C
+#    define EXTERN_C
+#  endif
 #endif
 
 #undef INIT