Re: Linux 2.6.16-rc1

From: Sam Ravnborg
Date: Wed Jan 18 2006 - 04:14:45 EST


Hi Jean.

> I just tried this on a freshly unpacked and configured (but not
> compiled) 2.6.16-rc1, and I observe a similarly strange, though
> different, behavior:
> hyperion:/home/khali/src/linux-2.6.16-rc1 # ls -l /dev/null
> crw-rw-rw- 1 root root 1, 3 2006-01-18 09:30 /dev/null
> hyperion:/home/khali/src/linux-2.6.16-rc1 # make distclean V=1
...
> make -f scripts/Makefile.clean obj=scripts/kconfig
> make -f scripts/Makefile.clean obj=scripts/kconfig/lxdialog
When the above command is executed gcc is actually called two times due
to following lines:
scripts/kconfig/lxdialog/Makefile
HOST_EXTRACFLAGS:= $(shell $(CONFIG_SHELL) $(check-lxdialog) -ccflags)
HOST_LOADLIBES := $(shell $(CONFIG_SHELL) $(check-lxdialog) -ldflags $(HOSTCC))

The shell script check-dialog.sh is called which again do:
echo "main() {}" | gcc -xc - -o /dev/null

And it seems that gcc will trash /dev/null in your setup when doing
this.
One fix would be to avoid the two lines during distclean,
but I may have to resort to a temporary file.

Could you please confirm that the above command is the one that trashes
/dev/null, then I will try to cook up something better.

Sam
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