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Date: Fri, 9 Dec 2011 23:39:12 -0200
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Subject: Bug in sh emulation
From: "Ivan S. Freitas" <ivansichfreitas@gmail.com>
To: zsh-workers@zsh.org
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Zsh is hanging in commands like: emulate sh -c "(echo | grep)"

Everything I've tried in the form "(command | command)" fails in the same w=
ay.

zsh 4.3.14
/configure --prefix=3D/usr \
 		--bindir=3D/bin \
 		--enable-etcdir=3D/etc/zsh \
 		--enable-zshenv=3D/etc/zsh/zshenv \
 		--enable-zlogin=3D/etc/zsh/zlogin \
 		--enable-zlogout=3D/etc/zsh/zlogout \
		--enable-zprofile=3D/etc/zsh/zprofile \
 		--enable-zshrc=3D/etc/zsh/zshrc \
 		--enable-maildir-support \
 		--with-term-lib=3D'ncursesw' \
 		--enable-multibyte \
 		--enable-function-subdirs \
 		--enable-fndir=3D/usr/share/zsh/functions \
zshrc: https://github.com/ISF/dotfiles/blob/master/.zshrc
Although it doesn't seem to be affected by settings in the startup files.

Origin: last update of zsh in archlinux uses /etc/zsh/zprofile in the
startup, which runs emulate sh -c "/etc/profile".
In /etc/profile.d/GNUstep.sh there is the following:

if [ -n "$ZSH_VERSION" ]; then
=A0 # If -y is not already set, set it and remember that we=A0 # need to
set it back to what it was at the end.=A0 if ( setopt | grep shwordsplit
> /dev/null ); then :; else=A0 =A0 set -y
GS_ZSH_NEED_TO_RESTORE_SET=3Dyes=A0 fi
fi

The most inner if makes the initialization of every zsh (as a login
shell) hangs until a SIGINT is sent.

--=20
Ivan Sichmann Freitas
GNU/Linux user #509059