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Date: Tue, 1 Jun 2004 10:38:30 -0400
From: Christopher Faylor <cgf-no-personal-reply-please AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: problem with make under cygwin
Message-ID: <20040601143830.GB31443@coe.casa.cgf.cx>
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References: <40BC3795 DOT 7030902 AT sysgo DOT com>
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On Tue, Jun 01, 2004 at 10:00:21AM +0200, bertrand marquis wrote:
>Hello
>
>   i'm having a strange problem with the make command and shell.
>
>i try to run a makefile with this :
>HAVE_DEVFS := $(shell grep 'CONFIG_DEVFS_FS=y' ../../linux/.config &> 
>/dev/null && echo "yes" || echo "no")
>
>the shell command is working out of a makefile but in the makefile the 
>HAVE_DEVFS variable only contain the output of the grep command. Does 
>anyone know why it doesn't work ?

make uses /bin/sh.  /bin/sh doesn't understand the >& construct.  It
is not portable.

Use

HAVE_DEVFS := $(shell grep 'CONFIG_DEVFS_FS=y' ../../linux/.config >/dev/null 2>&1 && echo "yes" || echo "no")

instead.

cgf

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