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From:	Rolf Campbell <rcampbell AT tropicnetworks DOT com>
Subject:	Re: Shell brace expansion in make works?
Date:	Sun, 09 Feb 2003 16:28:21 -0500
Lines:	37
Message-ID:	<b26h1m$c3a$1@main.gmane.org>
References:	<20030209151057 DOT A13079 AT saturn DOT billgatliff DOT com>
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In-Reply-To:	<20030209151057.A13079@saturn.billgatliff.com>

William A. Gatliff wrote:
> I have a Makefile with a command like this:
> 
>  mkdir -p /opt/billgatliff/{usr,lib}
> 
> Works fine under Linux, but not on the latest Cygwin.
> 
> Under Cygwin, what I actually get is a directory called "{usr",
> instead of "usr".  Other variations on this brace expansion (in tar
> arguments, etc.) produce similar problems.
> 
> I checked this:
> 
> $ set | grep SHELL
> SHELL=/bin/bash
> 
> Seems fine.  But when I do this:
> 
> $ make SHELL=/bin/sh ...
                     ^^ "bash"
> 
> I actually get what I'm after, i.e. "usr" instead of "{usr".
I'm guessing that you meant to type "bash" in the email.  Either way, 
cygwin make seems to ignore the environment variable SHELL, and uses 
'/bin/sh' unless you specify on the command-line or in the makefile.

I was able to reproduce this.

Use this as a makefile
all:
         echo a{1,2}

Then run "make" and it will output "a{1,2}", but if you run "make 
SHELL=/bin/bash" it will output "a1 a2".

-Rolf



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