> what would you say about this simplification of _AC_CACHE_DUMP? >
+ case `(ac_space=' '; set | grep ^ac_space) 2>&1` in Don't you have to quote leading ^ in portable shell? As in case `(ac_space=' '; set | grep '^ac_space') 2>&1` in I searched autoconf.texi, but did not find a definitive answer to my question (it did point out that ^ is not portable in filenames, and that leading ^ in expr regex is not portable, but did not really mention whether bare ^ in shells should be avoided), so maybe I'm just propagating an urban legend. -- Eric Blake
