ofono build error on ARM

[Marcel Holtmann]

Hi Remi,

> > I'm seeing the following build error when building ofono on an HTC G1
> > phone:
> >
> > gcc -DHAVE_CONFIG_H -I. -I.. -I/usr/include/glib-2.0
> > -I/usr/lib/glib-2.0/include -g -O2 -g -Werror -Wextra
> > -Wno-unused-parameter -Wno-missing-field-initializers
> > -Wdeclaration-after-statement -Wmissing-declarations -Wredundant-decls
> > -Wcast-align -MT netlink.lo -MD -MP -MF .deps/netlink.Tpo -c netlink.c
> > -fPIC -DPIC -o .libs/netlink.o
> >
> > cc1: warnings being treated as errors
> > netlink.c: In function ‘g_pn_nl_process’:
> > netlink.c:75: error: cast increases required alignment of target type
> > netlink.c:107: error: cast increases required alignment of target type
> > netlink.c:109: error: cast increases required alignment of target type
> > make[2]: *** [netlink.lo] Error 1
> 
> I think there is no way to fix this. It comes from the Netlink packet format 
> and macros, which are confusing gcc. That's why I hate to enfore -Werror.

we only enforce -Werror for the developers and it is important to have
gcc help us catch mistakes that might be easily overlooked. I would have
to look into these one and how we can fix them properly.

Regards

Marcel