diff -urN clearsilver.orig/Makefile clearsilver/Makefile
--- clearsilver.orig/Makefile	Thu Dec 14 18:50:50 2006
+++ clearsilver/Makefile	Thu Dec 14 19:23:00 2006
@@ -62,8 +62,11 @@
 
 .include <bsd.port.pre.mk>
 
-.if ${OSVERSION} < 500000
-BROKEN=		Does not compile
+.if ${OSVERSION} >= 500000
+PATCHDIR=	dont-patch
+PLIST_SUB+=	PTHREAD=""
+.else
+PLIST_SUB+=	PTHREAD="@comment "
 .endif
 
 post-patch:
diff -urN clearsilver.orig/files/patch-configure clearsilver/files/patch-configure
--- clearsilver.orig/files/patch-configure	Wed Dec 31 19:00:00 1969
+++ clearsilver/files/patch-configure	Thu Dec 14 19:16:41 2006
@@ -0,0 +1,17 @@
+--- configure.orig	Thu Dec 14 19:15:07 2006
++++ configure	Thu Dec 14 19:16:25 2006
+@@ -4969,14 +4969,6 @@
+ fi
+ 
+ 
+-  if test $cs_cv_pthread = yes; then
+-    cat >>confdefs.h <<\_ACEOF
+-#define HAVE_PTHREADS 1
+-_ACEOF
+-
+-    EXTRA_UTL_SRC="$EXTRA_UTL_SRC skiplist.c dict.c"
+-  fi
+-
+ fi
+ 
+ 
diff -urN clearsilver.orig/pkg-plist clearsilver/pkg-plist
--- clearsilver.orig/pkg-plist	Thu Dec 14 18:50:50 2006
+++ clearsilver/pkg-plist	Thu Dec 14 19:22:07 2006
@@ -7,7 +7,7 @@
 include/ClearSilver/cgi/html.h
 include/ClearSilver/cs/cs.h
 include/ClearSilver/cs_config.h
-include/ClearSilver/util/dict.h
+%%PTHREAD%%include/ClearSilver/util/dict.h
 include/ClearSilver/util/filter.h
 include/ClearSilver/util/neo_date.h
 include/ClearSilver/util/neo_err.h
@@ -20,7 +20,7 @@
 include/ClearSilver/util/neo_server.h
 include/ClearSilver/util/neo_str.h
 include/ClearSilver/util/rcfs.h
-include/ClearSilver/util/skiplist.h
+%%PTHREAD%%include/ClearSilver/util/skiplist.h
 include/ClearSilver/util/ulist.h
 include/ClearSilver/util/ulocks.h
 include/ClearSilver/util/wildmat.h