Don't try to create directories which already exist, this significantly

cleans up the console output if you set USE_SYSTRACE.  ok dcoppa@

devel/cmake/Makefile

@@ -1,4 +1,4 @@
-# $OpenBSD: Makefile,v 1.39 2011/04/14 15:55:19 jasper Exp $
+# $OpenBSD: Makefile,v 1.40 2011/04/16 15:18:13 sthen Exp $
 
 VMEM_WARNING =	Yes
 
@@ -6,6 +6,7 @@ HOMEPAGE =	http://www.cmake.org/
 CATEGORIES =	devel
 COMMENT =	portable build system
 DISTNAME =	cmake-2.8.4
+REVISION =	0
 MASTER_SITES =	${HOMEPAGE}files/v2.8/
 
 MAINTAINER =	David Coppa <dcoppa@openbsd.org>

devel/cmake/patches/patch-Source_kwsys_SystemTools_cxx

@@ -0,0 +1,21 @@
+$OpenBSD: patch-Source_kwsys_SystemTools_cxx,v 1.9 2011/04/16 15:18:13 sthen Exp $
+
+Don't spam systrace by attempting to create dirs which already exist.
+
+--- Source/kwsys/SystemTools.cxx.orig	Sat Apr 16 12:20:19 2011
++++ Source/kwsys/SystemTools.cxx	Sat Apr 16 12:31:43 2011
+@@ -226,11 +226,13 @@ inline void Realpath(const char *path, kwsys_stl::stri
+ }
+ #else
+ #include <sys/types.h>
++#include <sys/stat.h>
+ #include <fcntl.h>
+ #include <unistd.h>
+ inline int Mkdir(const char* dir)
+ {
+-  return mkdir(dir, 00777);
++  struct stat sb;
++  return stat(dir, &sb) && mkdir(dir, 00777);
+ }
+ inline int Rmdir(const char* dir)
+ {