Use platform pthread flags instead of hard coded -lpthread.

graphics/glitz/distinfo

@@ -1,5 +1,6 @@
-$NetBSD: distinfo,v 1.8 2005/08/11 15:24:54 adam Exp $
+$NetBSD: distinfo,v 1.9 2005/10/03 19:46:56 joerg Exp $
 
 SHA1 (glitz-0.4.4.tar.gz) = 53d5df02aaf7c156ad62787a1ad9b3072f8dbd25
 RMD160 (glitz-0.4.4.tar.gz) = ffbdc0467c8ac727747eb430bcdde226f8fcce42
 Size (glitz-0.4.4.tar.gz) = 425742 bytes
+SHA1 (patch-aa) = d725f03f96082b6d9b31c608a0e4c1beb71e87f1

graphics/glitz/patches/patch-aa

@@ -0,0 +1,13 @@
+$NetBSD: patch-aa,v 1.5 2005/10/03 19:46:56 joerg Exp $
+
+--- configure.orig	2005-10-03 18:14:07.000000000 +0000
++++ configure
+@@ -22799,7 +22799,7 @@ echo "${ECHO_T}$xthreads" >&6
+ 
+     if test "x$xthreads" = "xyes"
+     then
+-      GLX_LIBS="$GLX_LIBS -lpthread"
++      GLX_LIBS="$GLX_LIBS ${PTHREAD_LDFLAGS} ${PTHREAD_LIBS}"
+       cat >>confdefs.h <<\_ACEOF
+ #define XTHREADS 1
+ _ACEOF