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It uses the following image:
https://phabricator.kde.org/source/sysadmin-ci-tooling/browse/master/system-images/android/sdk/Dockerfile-clang

The one we are using now as kdeorg/android-sdk is still using GCC which
can't compile poppler master (it can compile last stable version, but
new features are used now and it can't cope).
KDE will start using this clang version when Qt 5.12 releases and we
know there's no major regressions, but poppler can already start doing
so now.

It only checks that poppler builds correctly, doesn't execute anything.

Supposedly more complete Unicode information

In Python 3, exceptions must derive from the BaseException class, which
Printer definitely does not do.

Fixes issue #669

Make GooString constructible and assignable from null pointers again since some of the code expects it.

fixes oss-fuzz/9614

AnnotLine::initialize used to look for strings, which is wrong,
because PDF reference says "LE [...] An array of two names".

And don't feel like investigating why

This is the name used by std::string.

Line endings are already parsed from /LE array and are gettable and
settable as enum value in current APIs.

With this commit we implement the drawing operations so that line
endings become actually visible when document is rendered.

Enables levels 0, 1 and 2, along with some manual ones
Disables non-pod-globa-static, StructElement would need some rework to
fix it and it's only a bit about optimization of start time, we can live
with it

Since they are part of the API

Makes clazy happier

We don't have any signals or slots at the moment but add the keyword so
if we ever add them it's using the Q_SIGNAL/Q_SLOT variant so we don't
get collisions with other people that use signal/slot

Scopes the entry variable so people don't try to use it in between