diff -urN clisp-2.43/modules/regexp/configure clisp-2.43.patch/modules/regexp/configure
--- clisp-2.43/modules/regexp/configure	2007-11-16 11:33:21.000000000 -0800
+++ clisp-2.43.patch/modules/regexp/configure	2007-12-05 13:18:51.000000000 -0800
@@ -6244,7 +6244,7 @@
   yes|no) ac_use_included_regex=$with_included_regex ;;
   '') case $gl_cv_func_re_compile_pattern_working in
     yes) ac_use_included_regex=no ;;
-    no) ac_use_included_regex=yes ;;
+    *) ac_use_included_regex=yes ;;
   esac ;;
 esac
 # can we use the system-wide regex implementation?