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Subject: Re: PATH reordered when running zsh inside screen on Mac OS X
 Mountain Lion and MacPorts
From: Nikolai Weibull <now@bitwi.se>
To: =?UTF-8?Q?Lawrence_Vel=C3=A1zquez?= <larryv@macports.org>
Cc: Zsh Users <zsh-users@zsh.org>
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On Tue, Jan 29, 2013 at 7:21 AM, Lawrence Vel=C3=A1zquez <larryv@macports.o=
rg> wrote:
> On Jan 28, 2013, at 5:08 AM, Nikolai Weibull <now@bitwi.se> wrote:

>> I figured out what the problem was.  /etc/zshenv on Mac OS X Mountain Li=
on calls a utility called path_helper.

> I agree that /etc/zprofile would be a better place to set ${PATH}, but yo=
u would still run into the issue because terminal multiplexers usually run =
login shells. I previously encountered it under tmux.

Not screen, not the way I have it configured, anyway.  Tmux seems to
force logged in terminals.  I guess one could check SHLVL or something
like that.

> The real problem is that /usr/libexec/path_helper alters ${PATH} even if =
${PATH} already contains the entries it wants to add. In this case, it move=
s the entries to the beginning of ${PATH} instead of just leaving it as is.

Yes, precisely.

> The old zsh-devel port did use --enable-etcdir in its configure phase. Fo=
r the reason given by Phil, I chose not to carry this over to the zsh port =
when I assumed maintenance of both and obsoleted zsh-devel.

Aha, that explains why it occured only recently.

Thank you for filling in the details!