[Mesa-dev] meson builds don't read dri options

[Kenneth Graunke]

On Tuesday, January 23, 2018 3:31:23 AM PST Marc Dietrich wrote:
> Hi Dylan,
> 
> running "Heaven" fails with "error: #extension directive is not allowed in the 
> middle of a shader" because drirc (which contains an exception for this 
> program) is somehow not read in meson builds.
> 
> Marc

Hey Dylan,

Marc is right, this is not working correctly.  driParseConfigFiles has:

    char *filenames[2] = { SYSCONFDIR "/drirc", NULL};

where SYSCONFDIR comes from Meson's get_option('sysconfdir').

The issue is that SYSCONFDIR is apparently getting expanded to "etc",
so it's looking for "etc/drirc".

sysconfdir is supposed to default to $(prefix)/etc, so /usr/local/etc:
https://www.gnu.org/prep/standards/html_node/Directory-Variables.html

I wonder if this is a Meson bug or if we're handling sysconfdir wrong.

--Ken
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