--- qwtplot3d.pro.orig	2009-04-07 19:45:29.985645378 +0100
+++ qwtplot3d.pro	2009-04-07 19:46:50.095747068 +0100
@@ -80,13 +80,11 @@
            include/qwt3d_graphplot.h \
            include/qwt3d_multiplot.h
 
-# gl2ps support
-HEADERS+=3rdparty/gl2ps/gl2ps.h \
-         include/qwt3d_io_gl2ps.h
+# gl2ps support taken from system libs
+HEADERS+=include/qwt3d_io_gl2ps.h
          
-SOURCES+=src/qwt3d_io_gl2ps.cpp \
-         3rdparty/gl2ps/gl2ps.c
-
+SOURCES+=src/qwt3d_io_gl2ps.cpp
+unix:LIBS += -lgl2ps
 # zlib support for gl2ps
 zlib {
   DEFINES += GL2PS_HAVE_ZLIB
--- src/qwt3d_io_gl2ps.cpp.orig	2009-04-07 19:44:38.536418391 +0100
+++ src/qwt3d_io_gl2ps.cpp	2009-04-07 19:45:03.685133854 +0100
@@ -4,7 +4,7 @@
 
 #include <time.h>
 #include "qwt3d_openglhelper.h"
-#include "../3rdparty/gl2ps/gl2ps.h"
+#include <gl2ps.h>
 #include "qwt3d_io_gl2ps.h"
 #include "qwt3d_plot.h"