diff -Nurd -x'*~' geomview-1.9.5.orig/configure geomview-1.9.5/configure
--- geomview-1.9.5.orig/configure	2014-03-12 19:19:04.000000000 -0400
+++ geomview-1.9.5/configure	2016-10-29 03:23:55.000000000 -0400
@@ -20842,7 +20842,7 @@
   fi
 
 geom_header=GL/gl.h
-geom_dirs='"$USER_OPENGL_DIR" "" "/usr/local/include"'
+geom_dirs='"$USER_OPENGL_DIR" "" "$x_includes" "/usr/local/include"'
 geom_saved_CPPFLAGS=$CPPFLAGS
 GEOM_I_OPTION="0"
 #AC_MSG_CHECKING([for $geom_header])
@@ -20895,7 +20895,7 @@
   #
 
 geom_header=GL/glx.h
-geom_dirs='"$USER_OPENGL_DIR" "" "/usr/local/include"'
+geom_dirs='"$USER_OPENGL_DIR" "" "$x_includes" "/usr/local/include"'
 geom_saved_CPPFLAGS=$CPPFLAGS
 GEOM_I_OPTION="0"
 #AC_MSG_CHECKING([for $geom_header])
@@ -21843,7 +21843,7 @@
   then
     default_includes=""
   else
-    default_includes="-I\$(prefix) "
+    default_includes="-I\$(prefix)/include "
   fi
 
   # Get the directory list