Re: Trying to cross compile glib-2.18.2 for ARM

[Sergei Steshenko <sergstesh yahoo com>]

--- On Mon, 4/19/10, Chuck Kuecker <ckuecker ckent org> wrote:

> From: Chuck Kuecker <ckuecker ckent org>
> Subject: Re: Trying to cross compile glib-2.18.2 for ARM
> To: gtk-list gnome org
> Date: Monday, April 19, 2010, 4:27 PM
> Robert Pearce wrote:
> > Hi Chuck,
> > 
> > On Mon, 19 Apr 2010 09:54:16 -0600 you wrote:
> >   
> >>>> checking for posix getpwuid_r... (cached)
> yes
> >>>> checking for posix getgrgid_r...
> configure: error: in
> >>>>
> `/opt/Freescale1/ltib/rpm/BUILD/glib-2.18.2':
> >>>> configure: error: cannot run test program
> while cross
> >>>> compiling
> >>>> See `config.log' for more details.
> >>>> error: Bad exit status from
> >>>> /opt/Freescale1/ltib/tmp/rpm-tmp.29960 (%
> >>>> build)
> >>>>         
> > 
> > <snip>
> >   
> >> What, exactly, are the 'test programs' that the
> glib make tries to run? There must have been a way to
> disable this in the older version of glib (glib-2.12.11)
> packaged with the Freescale ltib build, since that build
> does not have this issue. Was this an added feature of newer
> glib releases?
> >>     
> > 
> > It's not "glib make", it's the configure script. In
> order to confirm
> > whether glib can use a POSIX compliant getgrgid_r the
> configure script
> > has to build and run a test program to check for
> compliance. For most
> > things it's enough to compile the test, but for some
> compliance checks
> > the program must actually be run on the target system.
> That's rather
> > hard for configure to do when cross-compiling.
> > 
> > It may be possible to explicitly tell configure
> whether the test would
> > pass (or rather, to explicitly tell it whether to use
> the function) but
> > it may not. The fact that older versions didn't suffer
> this problem
> > could be down to older versions not needing that
> function, or it may be
> > the availability was incorrectly assumed rather than
> tested.
> > 
> > And that's about as much as I know on the topic!
> > 
> > 
> > Rob
> > 
> >   
> Thanks, Rob. That makes sense - it can't run an ARM binary
> on a x86
> platform.
> 
> I can test on the target system to see if it supports the
> POSIX function
> - if so, I can modify the configuration script to skip the
> test.
> 
> While I was poking around here, I found an alternate
> solution to my
> problem that does not require an updated glib. My
> gst-plugins-good
> package was the wrong version - I used a newer release, and
> I've got my
> functionality now.
> 
> Thanks to everyone!
> 
> Chuck Kuecker
> 
> 
> 

FWIW, if gtk+ documentation says it can be cross-built, but in reality it 
can't because of the problems you've encountered, please file a bug 
against gtk+.

Thanks,
  Sergei.