[systemd-devel] Minimum required gcc version?

[Umut Tezduyar Lindskog]

For the reference, this problem is tracked @
https://github.com/systemd/systemd/issues/406

On Thu, Jun 18, 2015 at 5:34 PM, Lennart Poettering
<lennart at poettering.net> wrote:
> On Thu, 18.06.15 17:33, Michael Olbrich (m.olbrich at pengutronix.de) wrote:
>
>> Hi,
>>
>> On Thu, Jun 18, 2015 at 03:20:04PM +0200, Lennart Poettering wrote:
>> > On Thu, 18.06.15 14:29, Michael Olbrich (m.olbrich at pengutronix.de) wrote:
>> > > Do we have a minimum required gcc version? The README just lists gcc
>> > > without any version. However the current git fails to build with gcc-4.7:
>> > > In this version, gcc produces -Wshadow warnings for variables with the same
>> > > name as a defined function (e.g. 'now' in several functions in
>> > > src/core/device.c). This results in build errors because we compile with
>> > > -Werror=shadow now.
>> >
>> > Hm, yuck. I figure we could add that only for gcc versions newer than
>> > that, with a configure check...
>> >
>> > or can't you add a -Wno-shadow to CFLAGS on the configure cmdline,
>> > overriding what we set there?
>>
>> I can easily work around this issue with cc_cv_CFLAGS__Werror_shadow=no in
>> the environment for configure. I just wanted to report this in case you
>> care about gcc-4.7.
>
> Well, it's easy enough to care for it I think in this case. If you
> send me a patch that conditionalizes this in the configure script
> depending on the gcc version I'd be willing to merge it.
>
> Lennart
>
> --
> Lennart Poettering, Red Hat
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