Bug#1029101: fontconfig-config: 2.14.1 upload breaks testSimpleText of libreoffice

[Rene Engelhard]

Package: fontconfig-config
Version: 2.14.1-3
Severity: serious
Justification: causes FTBFS
Tags: patch

Dear Maintainer,

See
https://buildd.debian.org/status/fetch.php?pkg=libreoffice&arch=amd64&ver=1%3A7.4.4-1&stamp=1673962775&raw=0:

[_RUN_____] VclTextTest::testSimpleText
./vcl/qa/cppunit/text.cxx:222:VclTextTest::testSimpleText
double equality assertion failed
- Expected: 42
- Actual  : 37
- Delta   : 4

Indeed that also happens when I build it locally (unfortunately the C++
autopkgtests had to be disabled in libreoffice, otherwise they would
have catched it, too)

Downgrading to 2.13.1-4.5 "fixes" it.

Since other distributions already *do* ship 2.14.1 I looked what they
had and I came around

https://src.fedoraproject.org/rpms/fontconfig/c/25e368d9d2888159b5eb9acf3839821a4fe81c40?branch=rawhide

Indeed, when I added that <test>...</test> into the already existing /etc/fonts/conf.d/10-sub-pixel-rgb.conf
the test passes.

Filing this as serious as it causes (autopkg)test failures. Which is bad
this late in the release cycle, especially for packages involved in
transitions like python3-defaults...

Regards,

Rene