From mboxrd@z Thu Jan  1 00:00:00 1970
From: rdkehn at yahoo.com <rdkehn@yahoo.com>
Date: Fri, 15 Jan 2016 09:31:21 -0600
Subject: [Buildroot] [RFC PATCH v2 1/4] package/dhcp: bump version to
 4.3.3
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Message-ID: <20160115153121.GA16597@dkarchlinux64.currentcomm.com>
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Hi Richardo, Arnout, All,

On Thu, Jan 14, 2016 at 10:17:28PM -0200, Ricardo Martincoski wrote:
> Hi Doug and Arnout,
> 
> On Sun, 10 Jan 2016 15:25:06 -0600, Doug Kehn wrote:
> > The embedded bind configure is called as part of dhcp make instead of
> > dhcp configure. dhcp make environment is expanded to ensure bind
> > configure has the proper information.
> Maybe the bind configure could be called in a post configure hook.
> This way, bind would be configured in the configure step too.
> 
> [snip]
> > +DHCP_MAKE=$(MAKE1)
> > +
> > +DHCP_MAKE_ENV = \
> > +	GNU_TARGET_NAME=$(GNU_TARGET_NAME) \
> For at least one external toolchain, the bind configure can't find the
> target compiler because it is expecting arm-buildroot-linux-gnueabi-gcc
> while the binary name is arm-none-linux-gnueabi-gcc.
> Maybe setting CC here would fix this.
> > +	GNU_HOST_NAME=$(GNU_HOST_NAME) \
> > +	AR="$(TARGET_AR)" \
> > +	BUILD_CC="$(HOSTCC)"

Did you try adding CC to see if it fixed the external toolchain
issue? I also wonder if adding $(TARGET_CONFIGURE_OPTS) to MAKE_ENV
is warranted?

> 
> If a hook is used, TARGET_CONFIGURE_OPTS can provide most of variables needed,
> fixing the issue with some external toolchains.
> Something like this:
> DHCP_BIND_CONF_ENV = \
> 	$(TARGET_CONFIGURE_OPTS) \
> 	GNU_TARGET_NAME=$(GNU_TARGET_NAME) \
> 	GNU_HOST_NAME=$(GNU_HOST_NAME) \
> 	BUILD_CC="$(HOSTCC)"
> 
> define DHCP_CONFIGURE_BIND
> 	$(DHCP_BIND_CONF_ENV) $(DHCP_MAKE) -C $(@D)/bind bind1
> endef
> DHCP_POST_CONFIGURE_HOOKS += DHCP_CONFIGURE_BIND
> > +
> > +define DHCP_EXTRACT_BIND
> > +	cd $(@D)/bind; tar -xvf bind.tar.gz
> > +endef
> > +DHCP_POST_EXTRACT_HOOKS += DHCP_EXTRACT_BIND
> 
> What do you think about this?

Did the configure hook work for you?

At the end of the day, configure hook vs make env is a matter
preference for the Buildroot maintainers; as long as it works... I
have not yet tried the configure hook; but, I will. My only
reservation with the configure hook is that it must know the exact
target to make to configure bind as apposed to just ensuring the
environment has the proper values for cross compiling and letting
the Buildroot infra take care of the rest. 

Regards,
...doug