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Re: gobject-introspection .gir search path

From: Cyril Roelandt
Subject: Re: gobject-introspection .gir search path
Date: Tue, 06 May 2014 20:01:42 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Icedove/24.4.0

On 05/06/2014 10:07 AM, Ludovic Courtès wrote:
> Cyril Roelandt <address@hidden> skribis:
>> On 05/06/2014 12:36 AM, Ludovic Courtès wrote:
>>> While trying to package librsvg, I stumbled upon this:
>>> --8<---------------cut here---------------start------------->8---
>>> Couldn't find include 'GdkPixbuf-2.0.gir' (search path: ['.', 'gir-1.0', 
>>> '/gnu/store/xdd5ndl01700w23z206nc36nqg96z94v-gobject-introspection-1.38.0/share/gir-1.0',
>>>  '/usr/share/gir-1.0', 
>>> '/gnu/store/xdd5ndl01700w23z206nc36nqg96z94v-gobject-introspection-1.38.0/share/gir-1.0'])
>>> /gnu/store/xdd5ndl01700w23z206nc36nqg96z94v-gobject-introspection-1.38.0/share/gobject-introspection-1.0/Makefile.introspection:153:
>>>  recipe for target 'Rsvg-2.0.gir' failed
>>> make[2]: *** [Rsvg-2.0.gir] Error 1
>>> --8<---------------cut here---------------end--------------->8---
>>> Do you remember if the gobject-introspection “scanner” had a way to
>>> specify a search path, like an env. var.?
>>> Otherwise, how can we make sure that the .girs of inputs are visible?
>> Look at the 'gir-directory' function in guix/build/gnome.scm. It's used
>> in gnu/packages/{gtk,gnome}.scm and does exactly what you need.
> Oh right, thanks, that does the job.
> It’d be great to submit a patch upstream so that g-ir-compiler &
> co. honor a GIR_PATH environment variable or similar.  That seems like
> the right thing to do, and definitely helpful for us.

>From 'man g-ir-scanner':

"The g-ir-scanner uses the XDG_DATA_DIRS variable to check for dirs, the
girs are located in XDG_DATA_DIRS/gir-1.0."

I guess you could also use that; would it solve your problem ? I think
we might be able to remove the ugly use of '--add-include-path' in
gnu/packages/{gtk,gnome}.scm if we were to use this variable.


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