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zsh breaks configure scripts



Apple uses zsh as /bin/sh on Mac OS X. Unfortunately zsh has a `feature' that breaks many autoconf configure scripts. The scripts contain lines like:
if test "`CDPATH=:; cd $srcdir && pwd`" != "`pwd`" && .......

The problem is that the zsh cd command insists on printing the directory!

The offending code is in cd_new_pwd() in Src/builtins.c around line 1047:
   if (unset(PUSHDSILENT) && func != BIN_CD && isset(INTERACTIVE))
        printdirstack();
    else if (doprintdir) {
        fprintdir(pwd, stdout);
        putchar('\n');
    }

I suggest that the fprintdir/putchar be called only in interactive shells:
   if (unset(PUSHDSILENT) && func != BIN_CD && isset(INTERACTIVE))
        printdirstack();
    else if (doprintdir && isset(INTERACTIVE)) {
        fprintdir(pwd, stdout);
        putchar('\n');
    }

--
Eric Norum <eric.norum@xxxxxxxx>
Department of Electrical Engineering
University of Saskatchewan
Saskatoon, Canada.
Phone: (306) 966-5394   FAX:   (306) 966-5407



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