[OpenWrt-Devel] [PATCH] build: don't call prereq for any package/symlinks rules

['Toerless Eckert']

So if "make package/symlinks" is optional, when is it needed ?

Sorry for the beginner q.

On Mon, Apr 27, 2015 at 05:15:36PM -0700, Mathieu Olivari wrote:
> I'm actually talking about the command below:
> $ make package/symlinks
> 
> Right after the git clone, it does open the menuconfig. Which ends-up in
> generating a .config, which has to be deleted anyway as any package from
> feed would get removed.
> 
> Thanks,
> Mathieu
> 
> -----Original Message-----
> From: openwrt-devel [mailto:openwrt-devel-bounces at lists.openwrt.org] On
> Behalf Of Toerless Eckert
> Sent: Monday, April 27, 2015 4:59 PM
> To: Mathieu Olivari
> Cc: openwrt-devel at lists.openwrt.org
> Subject: Re: [OpenWrt-Devel] [PATCH] build: don't call prereq for any
> package/symlinks rules
> 
> 
> Mathieu:
> 
> I can't quite follow your explanations. I ahve been building what looks to
> me perfectly well working 14.07 images by just doing:
> 
> git clone git://git.openwrt.org/openwrt.git cd openwrt # Clean workspace now
> 
> cp real.config .config
> make defconfig
> make
> 
> Your mail seems to indicate that that supposedly does not work. Can you
> please tell me what exactly is breaking when i do that ?
> 
> Thanks
>     Toerless
> 
> On Mon, Apr 27, 2015 at 04:46:49PM -0700, Mathieu Olivari wrote:
> > Most of the time, we want to make sure OpenWrt has been configured and 
> > setup before start running make. However, in case of package/symlinks, 
> > forcing prereq as a dependency creates multiple issues:
> > *when executed on a clean workspace, it will prompt for user input  
> > and open a menuconfig window before executing the feeds command *the 
> > only way around that is to provide a .config. However, the "prereq"
> >  target would then run a "make defconfig", which will remove all the  
> > packages in the .config but from external feeds, as feeds have not 
> > been  installed yet.
> > 
> > The only way to currently work around this, is to generate a fake 
> > config by running "make defconfig", then "make package/symlinks", copy 
> > the real config (which at this point disregards the previously 
> > generated config), and run make defconfig again. Something like this:
> > 
> > make defconfig
> > make package/symlinks
> > cp real.config .config
> > make defconfig
> > 
> > This change is removing the need for the first defconfig, making the 
> > process more logical for OpenWrt users using the package/symlinks target.
> > 
> > Signed-off-by: Mathieu Olivari <mathieu at qca.qualcomm.com>
> > ---
> >  include/toplevel.mk | 2 ++
> >  1 file changed, 2 insertions(+)
> > 
> > diff --git a/include/toplevel.mk b/include/toplevel.mk index 
> > d8651d9..b3b344d 100644
> > --- a/include/toplevel.mk
> > +++ b/include/toplevel.mk
> > @@ -178,6 +178,7 @@ ifeq ($(SDK),1)
> >  else
> >  
> >  %::
> > +ifeq ($(filter package/symlinks%,$(MAKECMDGOALS)),)
> >  	@+$(PREP_MK) $(NO_TRACE_MAKE) -r -s prereq
> >  	@( \
> >  		cp .config tmp/.config; \
> > @@ -186,6 +187,7 @@ else
> >  			printf "$(_R)WARNING: your configuration is out of
> sync. Please run make menuconfig, oldconfig or defconfig!$(_N)\n" >&2; \
> >  		fi \
> >  	)
> > +endif
> >  	@+$(ULIMIT_FIX) $(SUBMAKE) -r $@ $(if $(WARN_PARALLEL_ERROR), || { \
> >  		printf "$(_R)Build failed - please re-run with -j1 to see
> the real error message$(_N)\n" >&2; \
> >  		false; \
> > --
> > 1.9.1
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> openwrt-devel at lists.openwrt.org
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-- 
---
Toerless.Eckert at informatik.uni-erlangen.de
/C=de/A=d400/P=uni-erlangen/OU=informatik/S=Eckert/G=Toerless/
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