Regenerate.

configure

@@ -2844,11 +2844,12 @@ echo "$as_me: WARNING: Cache variable $ac_var contains a newline." >&2;} ;;
     esac
 ) |
   sed '
+     /^ac_cv_env_/b end
      t clear
      :clear
      s/^\([^=]*\)=\(.*[{}].*\)$/test "${\1+set}" = set || &/
      t end
-     /^ac_cv_env/!s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/
+     s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/
      :end' >>confcache
 if diff $cache_file confcache >/dev/null 2>&1; then :; else
   if test -w $cache_file; then