Bug#362999: vim: Incorrectly sets shellpipe variable when using zsh-beta

[Brett Nash]

Package: vim
Version: 1:6.4+7.0c05-1
Severity: normal


If you install and set zsh-beta to be your default shell (using chsh, not
update-aleternatives) vim will incorrectly set 'shellpipe'.  This will cause
functions like quickfix mode (:make) to fail.

'shellpipe' will be set to '| tee'.  For quickfix you also (generally) need to
capture stderr (either '|& tee' or '2>&1| tee' in zsh).  For normal zsh the
variable is '2>&1| tee'.

To reproduce:
	% echo $SHELL
	/bin/zsh
	% vim -c 'set shellpipe'
	(Vim displays 'shellpipe=2>&1| tee' at bottom of screen)
	:q! (quit vim)
	% export SHELL=/bin/zsh-beta
	% ls -l $SHELL
	-rwxr-xr-x 1 root root 496552 Feb 13 13:40 /bin/zsh-beta
	% vim -c 'set shellpipe'   
	(Vim displays 'shellpipe=| tee' at bottom of screen)
Try building a program with an error anywhere, and watch it break...

Also I wonder if vim should default to '&| tee' for zsh, rather then the more
cumbersome 2>&1| style.

Note this affects version 6.4, I upgraded to the 7.0 beta to see if it went
away - it didn't, so I investigated more...

-- System Information:
Debian Release: testing/unstable
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: i386 (i686)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.15-1-686-smp
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)

Versions of packages vim depends on:
ii  libc6                     2.3.6-6        GNU C Library: Shared libraries
ii  libgpmg1                  1.19.6-22      General Purpose Mouse - shared lib
ii  libncurses5               5.5-1          Shared libraries for terminal hand
ii  vim-common                1:6.4+7.0c05-1 Vi IMproved - Common files
ii  vim-runtime               1:6.4+7.0c05-1 Vi IMproved - Runtime files

vim recommends no packages.

-- no debconf information