[Buildroot] [PATCH 2/2] Add dependency on gzip to lxc for runtime

[Thomas Petazzoni]

Hello,

On Thu, 17 Sep 2015 18:20:34 +0300 (IDT), Jonathan Ben Avraham wrote:

> > Date: Thu, 17 Sep 2015 18:03:53 +0300
> > From: Baruch Siach <baruch at tkos.co.il>
> > To: Jonathan Ben-Avraham <yba at tkos.co.il>
> > Cc: buildroot at buildroot.org
> > Subject: Re: [Buildroot] [PATCH 2/2] Add dependency on gzip to lxc for runtime
> > 
> > Hi Yonatan,
> >
> > On Thu, Sep 17, 2015 at 05:46:33PM +0300, Jonathan Ben-Avraham wrote:
> >> From: Jonathan Ben Avraham <yba at tkos.co.il>
> >>
> >> lxc executables such as lxc-checkconfig require scripts provided by
> >> gzip such as zgrep.
> >>
> >> Signed-off-by: Jonathan Ben Avraham <yba at tkos.co.il>
> >> ---
> >>  package/lxc/Config.in |    6 ++++--
> >>  1 file changed, 4 insertions(+), 2 deletions(-)
> >>
> >> diff --git a/package/lxc/Config.in b/package/lxc/Config.in
> >> index ffd9b4a..e774eee 100644
> >> --- a/package/lxc/Config.in
> >> +++ b/package/lxc/Config.in
> >> @@ -9,6 +9,7 @@ config BR2_PACKAGE_LXC
> >>  	depends on !BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_NIOSII201305
> >>  	depends on !BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_NIOSII201405
> >>  	depends on BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_0 # libcap
> >> +	depends on BR2_PACKAGE_GZIP
> >
> > We generally use 'select' for non obvious dependencies like this one. You'll
> > also need to propagate the wchar dependency of gzip here.
> 
> I didn't use 'select' because of its implicit, sneaky nature. Bash is too 
> heavy to just "select" it into a rootfs without the user explicitly 
> putting an 'X' in the checkbox.

Still, we want such dependencies to use a "select" like Baruch said.
They should even be noted this way:

	select BR2_PACKAGE_GZIP # runtime dep only

Thanks!

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com