--- libsrc/geom2d/Makefile.in.orig	2014-10-06 11:04:37 UTC
+++ libsrc/geom2d/Makefile.in
@@ -275,7 +275,7 @@ top_build_prefix = @top_build_prefix@
 top_builddir = @top_builddir@
 top_srcdir = @top_srcdir@
 noinst_HEADERS = geom2dmesh.hpp geometry2d.hpp vsgeom2d.hpp 
-AM_CPPFLAGS = -I$(top_srcdir)/libsrc/include  $(TCL_INCLUDES)
+AM_CPPFLAGS = -I$(top_srcdir)/libsrc/include  $(TCL_INCLUDES) $(TK_INCLUDES)
 METASOURCES = AUTO
 lib_LTLIBRARIES = libgeom2d.la $(am__append_1)
 libgeom2d_la_SOURCES = genmesh2d.cpp geom2dmesh.cpp geometry2d.cpp