thanks
i found also that passing -n to echo solve the problem ???? :
HAVE_DEVFS := $(shell grep 'CONFIG_DEVFS_FS=y' ../../linux/.config &> /dev/null && echo -n "yes" || echo -n "no")
but thank you, your solution is so much better
Christopher Faylor a écrit:
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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