[Bug 921706] ghostscript: /invalidfont in /findfont, --nostringval-- Helvetica

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=921706



--- Comment #45 from Jerry James <loganjerry at gmail.com> ---
I made another custom urw-fonts package to try to get more information.  This
time, I added this to %post:

export FC_DEBUG=1209

That's 1 + 8 + 16 + 32 + 128 + 1024, by the way.  Then I changed the fc-cache
invocation to this:

fc-cache %{_datadir}/fonts/default 2>&1 | tee /tmp/urw-install.txt

and added "Requires(post): coreutils".  Since then, I've done a mock build of
zenon a dozen times, and it worked.  Every.  Single.  Time.

So apparently attempting to add debug output to gain insight into the problem
is enough to make the problem go away.  This must be a timing issue of some
kind, and the debug output slows something critical down just enough to make
the timing work out right.  I hate that kind of bug.

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