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Re: $(shell ...) and SHELL problems in 3.81
From: |
Christopher Faylor |
Subject: |
Re: $(shell ...) and SHELL problems in 3.81 |
Date: |
Sun, 15 Apr 2007 16:09:39 -0400 |
User-agent: |
Mutt/1.5.14 (2007-02-12) |
On Sun, Apr 15, 2007 at 06:16:56AM +0300, Eli Zaretskii wrote:
>>Date: Sat, 14 Apr 2007 17:59:13 -0400
>>From: Christopher Faylor
>>Cc:
>>
>>Please don't bother reporting problems to the Cygwin mailing list if the
>>problem is due to the use of a non-POSIX shell in make. That is not
>>supported. It goes against the whole concept of Cygwin.
>
>I think you interpret the problem incorrectly. GNU Make allows any
>program to be used as SHELL, and promises only that the named SHELL
>will be called once for each command it runs.
I don't think anyone claimed that cmd.exe was not being run. However,
since cmd.exe does not qualify as a POSIX shell, it is not producing
the desired outcome, anymore than if SHELL had been set to /bin/cat.
>I'd be surprised to learn that the Cygwin port withdraws from this
>promise of GNU Make, which works on all Posix platforms.
cmd.exe does not take the same arguments as a UNIX shell so there is no
reason to assume that it should work when invoked by a program like make
which assumes a UNIX shell. Cygwin may try to be an island of POSIX in
a sea of Windows but as soon as you leave the island by running cmd.exe
you have to expect trouble. I don't have the POSIX specification handy
but I'd be surprised of cmd.exe qualified as a POSIX shell since, AFAICT,
the POSIX shell specification is based on the Bourne Shell which accepts
"-c" as a command-line argument.
Above and beyond that point, however, it is not a goal of Cygwin to
operate flawlessly with cmd.exe.
cgf
- $(shell ...) and SHELL problems in 3.81, Aaron Shatters, 2007/04/12
- Re: $(shell ...) and SHELL problems in 3.81, Eli Zaretskii, 2007/04/13
- Re: $(shell ...) and SHELL problems in 3.81, Christopher Faylor, 2007/04/14
- Re: $(shell ...) and SHELL problems in 3.81, Eli Zaretskii, 2007/04/14
- Re: $(shell ...) and SHELL problems in 3.81,
Christopher Faylor <=
- Re: $(shell ...) and SHELL problems in 3.81, Eli Zaretskii, 2007/04/15
- Re: $(shell ...) and SHELL problems in 3.81, Christopher Faylor, 2007/04/15
- RE: $(shell ...) and SHELL problems in 3.81, Dave Korn, 2007/04/15
- Re: $(shell ...) and SHELL problems in 3.81, Christopher Faylor, 2007/04/15
- Re: $(shell ...) and SHELL problems in 3.81, Eli Zaretskii, 2007/04/15