Re: gnustep-make experiment

[Matt Rice]

On 2007-01-24 11:10:24 -0800 Nicola Pero 
<address@hidden> wrote:

> > It's not stricty GDL2 in this case but ./configure of GDL2 which 
> > want to
> > tweak make file fragments dependent on what's available.  So maybe we
> > need some tool in the path to query the values.  Something like
> > gnustep-config akin to apxs and xml2-config.
>
> Such a tool/shell script would be good.  Presumably it's also what 
> Matt was 
> really looking for ?
>
> I think it would be a good addition.  The tool would check if 
> GNUSTEP_MAKEFILES is set,
> if it is, it would then source GNUstep.sh and iterate over whatever 
> dirs you 
> want to
> iterate over to check if libraries are there ?

sort of what i was looking for, and this is what the gnustep.pc 
basically does
(I didn't add the -I/-L/-l stuff which is what pkg-config is normally 
for though)
just if its going to be supported to compile with only 
$GNUSTEP_MAKEFILES set
stuff _will_ need access to the older variables that were previously 
available

but it doesn't depend upon GNUSTEP_MAKEFILES or any ivars, being 
generated when you
configure make.  so if you want multiple gnustep.pc's lying around 
you'll need to fiddle with
PKG_CONFIG_PATH instead of setting GNUSTEP_MAKEFILES
e.g.

$ pkg-config gnustep --variable=system_root
/usr/GNUstep/System

export PKG_CONFIG_PATH=/tmp:$PKG_CONFIG_PATH
pkg-config gnustep --variable=system_root
/example/System

so the idea was we replace all the environment variables with that we 
install
gnustep.pc by default into somewhere pkg-config will find it, then 
people who want
non-standard stuff fiddle with it can set PKG_CONFIG_PATH
but it should just work by default