At the end of this message is a shell script that illustrates the bug. When I run it with zsh 4.3.2 (as distributed in Debian stable), zsh outputs "as_func_failure succeeded" and exits with nonzero status. Zsh should operate silently and exit with status zero; this is what Bash, ksh, and zsh 3.0.8 do. This failure causes Autoconf-generated configure scripts to consider zsh 4.3.2 to be broken, so it tries other shells. If zsh is the only shell available on the system, 'configure' complains to the user. For an example of this behavior, please see the Emacs bug report <http://lists.gnu.org/archive/html/emacs-devel/2007-04/msg01452.html>. if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then emulate sh NULLCMD=: # Zsh 3.x and 4.x performs word splitting on ${1+"$@"}, which # is contrary to our usage. Disable this feature. alias -g '${1+"$@"}'='"$@"' setopt NO_GLOB_SUBST else case `(set -o) 2>/dev/null` in *posix*) set -o posix ;; esac fi (as_func_return () { (exit $1) } as_func_success () { as_func_return 0 } as_func_failure () { as_func_return 1 } as_func_ret_success () { return 0 } as_func_ret_failure () { return 1 } exitcode=0 if as_func_success; then : else exitcode=1 echo as_func_success failed. fi if as_func_failure; then exitcode=1 echo as_func_failure succeeded. fi if as_func_ret_success; then : else exitcode=1 echo as_func_ret_success failed. fi if as_func_ret_failure; then exitcode=1 echo as_func_ret_failure succeeded. fi if ( set x; as_func_ret_success y && test x = "$1" ); then : else exitcode=1 echo positional parameters were not saved. fi test $exitcode = 0) || { (exit 1); exit 1; } ( as_lineno_1=$LINENO as_lineno_2=$LINENO test "x$as_lineno_1" != "x$as_lineno_2" && test "x`expr $as_lineno_1 + 1`" = "x$as_lineno_2") || { (exit 1); exit 1; } _______________________________________________ Autoconf mailing list Autoconf@xxxxxxx http://lists.gnu.org/mailman/listinfo/autoconf
