--- a/configure.ac	2006-07-29 11:38:43.000000000 +0200
+++ b/configure.ac	2006-07-29 11:40:52.000000000 +0200
@@ -40,14 +40,6 @@
         ;;
     *)
         MATHLIB="-lm"
-        AC_PATH_X
-        AC_PATH_XTRA
-        if test x$have_x = xyes; then
-            CFLAGS="$CFLAGS $X_CFLAGS"
-            SYS_GL_LIBS="$X_LIBS -lGL"
-        else
-            SYS_GL_LIBS="-lGL"
-        fi
         ;;
 esac
 AC_SUBST(MATHLIB)