Index: main/php.h
--- main/php.h.orig
+++ main/php.h
@@ -193,7 +193,9 @@ END_EXTERN_C()
 # ifdef PHP_WIN32
 typedef int socklen_t;
 # else
+#   if !defined(__OpenBSD__)
 typedef unsigned int socklen_t;
+#   endif
 # endif
 #endif