[Fontconfig] Environment var to set font trace debug output?

[Keith Packard]

Around 10 o'clock on Apr 2, Albert Chin wrote:

> $ rm .fonts.cache-1
> $ FC_DEBUG=20 qtconfig >/tmp/a
> $ FC_DEBUG=20 qtconfig >/tmp/b
>
> Should I expect /tmp/a and /tmp/b to be the same?

You've got FC_DBG_CACHE and FC_DBG_EDIT set, and certainly the output from 
FC_DBG_CACHE will differ depending on how the cache is filled.  You should
get the same output from FC_DBG_MATCH and FC_DBG_EDIT, so a better test
would be:

$ FC_DEBUG=5 qtconfig > /tmp/a

-keith