[Buildroot] [PATCH 2/2] exim: new package

[Luca Ceresoli <luca@lucaceresoli.net>]

Hi Thomas,

Thomas Petazzoni wrote:
> Dear Luca Ceresoli,
>
> On Sun, 06 Apr 2014 00:11:36 +0200, Luca Ceresoli wrote:
>
>> thanks for applying my patch and improving it.
>
> You're welcome.
>
>> However now that we have a "Mail" category exim should be placed there.
>> I'm sending a patch to move it.
>
> Sure, no problem.
>
>>> I've added AR and RANLIB here, otherwise the exim build system uses the
>>> native versions.
>>
>> Did you actually experience a build error, or just fixed ased on visual
>> inspection? That's weird, the code I submitted works here. But my build
>> environment is different, this might justify a different behaviour.
>>
>> Of course I am not against this change, in the worst case it's useless.
>> Just curious.
>
> I did not experience any problem, I just saw while looking at the build
> log that it was correctly using the cross-gcc, but not cross-ar and
> cross-ranlib, so I fixed that up.
>
>>> My defconfig is:
>>>
>>> BR2_arm=y
>>> BR2_TOOLCHAIN_EXTERNAL=y
>>> BR2_TOOLCHAIN_EXTERNAL_CUSTOM=y
>>> BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y
>>> BR2_TOOLCHAIN_EXTERNAL_URL="http://autobuild.buildroot.org/toolchains/tarballs/br-arm-basic-2014.02-rc1.tar.bz2"
>>> BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_13=y
>>> # BR2_TOOLCHAIN_EXTERNAL_HAS_THREADS_DEBUG is not set
>>> BR2_TARGET_GENERIC_GETTY_PORT="ttyAMA0"
>>> BR2_PACKAGE_EXIM=y
>>
>> I'll have a look at this error.

This is because in my original patch dated 2011 exim was configured in
a very stripped-down version, just enough to deliver mail locally to
cyrus-imapd.

At that time this was done coherently in the build configuration file
(package/exim/Local-Makefile), which disables most optional features,
and in the runtime configuration file (/etc/exim/configure on the
target), which does not configure those features.

In my resubmit last month I removed my runtime configuration file which
was tailored for cyrus-imapd, since I was sending the exim patch alone.
However I dd notchange the build config file. As it is, it disables
features such as the dnslookup router, which is enabled by the stock
runtime config file.

I'm sending a patch that changes the configuration approach in a way
more similar to Bernd Kuhls' approach: instead of blindly copying a
minimal Buildroot-provided configuration file, change to copy the
exim-provided one and tweak it as needed. This actually makes the 
configuration closed to standard exim.

-- 
Luca