[Fontconfig] fontconfig: Branch 'master'

[Vincent Torri]

On Fri, 13 Apr 2012, Jeremy Huddleston wrote:

>
> On Apr 12, 2012, at 7:00 PM, Mike Frysinger <vapier at gentoo.org> wrote:
>
>> On Thursday 12 April 2012 14:22:31 Jeremy Huddleston wrote:
>>> This caused tinderbox to fail:
>>> http://tinderbox.x.org/builds/2012-04-03-0002/
>>>
>>> I think expat did not start providing a .pc file until 2.1.0, which is
>>> still in beta.  Please revert the expat portion of this change.
>>
>> moving to pkg-config is a great thing.  i can understand if the fallback logic
>> of the PKG macro calls included running older xxx-config scripts, but restoring
>> that great glob of build crap to support older versions seems like a step
>> backwards.
>
> Yeah, I agree, pkg-config rocks.  It shouldn't be reverted completely.  I'm just saying that if pkg-config fails for expat, we should continue to use the ugly fallback path for now rather than abort.

usually, in those cases, i do that:

  1) i check the .pc file.

  2) if it fails, I check header file(s) and library, with an m4 macro if 
it's needed for several libraries. I wrote that one for openjpeg:

http://code.google.com/p/openjpeg/source/browse/branches/openjpeg-1.5/m4/opj_check_lib.m4

These days, I tend to reduce the number of configure options so that the 
users is less lost. So for include and library search paths, I use only 2 
options (a bit like ffmpeg, actually):

  --extra-cppflags
  --extra-ldflags

instead of plenty of --with-mylib-prefix, as, most of the time, they are 
in /usr/(include,lib) anyway

regards

Vincent Torri