[xemacs-hg @ 2003-02-20 01:12:25 by ben] patch for crashes when deleting frames eval.c: Don't check_quit() unless we're unbinding a real Lisp `unwind-protect' since check_quit() does lots of weird things and not all callers are prepared for it. frame.c: Make absolutely sure there is no quit checking while we are in a "critical section" during frame deletion.

AC_FATAL([

#### Autoconf 2.5x is not yet supported by XEmacs.
#### Our configure script is known *not* to work with these versions of
#### Autoconf. Please continue using Autoconf 2.13 for now.
])