Tim-Philipp Müller authored Jan 12, 2021 and Akira TAGOH committed Jan 22, 2021

We try to run fc-cache as part of the install, which runs
the fc-cache binary in the build directory. On Windows this
might fail because nothing sets up the environment in such
a way that Windows can find the libs required by fc-cache
(unless by luck we are operating in an environment where
the install bindir is already in PATH, but this is not
guaranteed).

Ideally Meson should set up the environment properly here,
but currently it doesn't do that, so until it does we need
to work around this problem somehow.

For now we simply ignore any fc-cache failures on Windows
and print a big warning message. We have to suppress the
dialog boxes that pop up when a DLL is not found in order
to make this work nicely. This isn't pretty, but seems
that least bad option for now.

See https://github.com/mesonbuild/meson/issues/8187

Fixes #260