$NetBSD: patch-ac,v 1.1.1.1 2001/10/29 16:50:16 jlam Exp $

--- config.m4.orig	Fri Jun 15 10:38:34 2001
+++ config.m4
@@ -27,6 +27,8 @@
   PHP_EXTENSION(apc, $ext_shared)
 fi
 
+AC_CHECK_HEADERS(semaphore.h)
+
 AC_CACHE_CHECK(for union semun,php_cv_semun,
    AC_TRY_COMPILE([
 #include <sys/types.h>