[Fontconfig] @CONFIGDIR@ (usually /etc/fonts/conf.d) could be recorded in fontconfig.pc?

[suzuki toshiya]

Dear Tagoh-san,

Thank you very much for prompt reply!

Akira TAGOH wrote:
>> Current fontconfig.pc records @BASECONFIGDIR@ value with the variable "confdir",
>> but @CONFIGDIR@ is not recorded.
> 
> You're right. hmm, I just wonder who needs to use BASECONFIGDIR itself
> outside fontconfig. no one needs to put anything there. more important
> thing should be TEMPLATEDIR and CONFIGDIR.

Indeed.

>> So I want to suggest to record the value... but what is the best name for the
>> variable?
>> I want to hear your comments to draft a small patch.
> 
> templatedir and confddir?

confddir would be very easier to understand, rather than confdir, I think.

> well, honestly I want to replace/fix confdir
> with CONFIGDIR though, that may breaks apps relying on it so far
> perhaps. dunno.

Yes, it looks slightly strange. Digging the git commit record,
when confdir variable was introduced, confdir was @confdir@ (2010).
https://cgit.freedesktop.org/fontconfig/commit/fontconfig.pc.in?id=81b542b50f82f8a0ad9f38f7d913fe5433631166

Daniel Macks reported this confdir was a bug, and corrected to @baseconfdir@ (2012).
https://cgit.freedesktop.org/fontconfig/commit/fontconfig.pc.in?id=ebd5096abc495550596861b6af2aae067e861553

According to Daniel's post,
https://lists.freedesktop.org/archives/fontconfig/2012-July/004200.html

he had just pointed out the unsubstituted values and he was also wondering why
this value was needed.

Yet I've not figured whole of the historic changes around this part (maybe there
were similar but different options; --with-confdir and --with-configdir, I'm
afraid it is not straight-forward story), please let me spend more time to dig
the history.

Regards,
mpsuzuki

>> Regards,
>> mpsuzuki
>>
>> P.S.
>> BTW, I'm afraid that @XMLDIR@ is no longer used..?
> 
> That is only used for dtd. no other purpose.
> 
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