--- lsys/configure.in	2010/04/29 12:42:13	1.2
+++ lsys/configure.in	2018/11/07 12:50:17	1.3
@@ -19,8 +19,8 @@
 AC_CHECK_HEADERS(GL/gl.h,[
  AC_CHECK_HEADERS(GL/glu.h,[
   AC_PATH_X
-  CPPFLAGS="$CPPFLAGS -I$x_includes"
-  LIBS="$LIBS -L$x_libraries -lX11"
+  CPPFLAGS="$CPPFLAGS"
+  LIBS="$LIBS -lX11"
   AC_CHECK_LIB(Xext,XShapeQueryExtension,[
     LIBS="$LIBS -lXext"
     AC_CHECK_LIB(GL,glBegin,[