Hi,

the libspng-dev package is currently missing the CMake config files
that other vendors' packages contain, e.g.

https://packages.msys2.org/packages/mingw-w64-clang-x86_64-libspng

It seems that this is because the libspng package is built using meson
instead of CMake. However, the fact that the CMake config files are
missing makes it hard-to-impossible for packages using CMake to detect
the libspng system library.

Please consider switching to the CMake build system and ship all the
necessary config files that it generates. This step will require
backporting a single post-release commit from upstream:

https://github.com/randy408/libspng/commit/adc94393dbeddf9e027d1b2dfff7c1bab975224e

Thank you!

Cheers,

 - Fabian

PS: If necessary, I can prepare an NMU or just add myself as an
Uploader and perform the changes myself, if you prefer.

Hi Fabian,

Upstream primarily uses the Meson build system, and I don't really know
why CMake is also present there (probably as a convenience for people
including spng as a subproject).

Unfortunately, CMake's bad support of pkg-config leads everyone to
pressure upstreams into shipping CMake files which in turn forces
everyone to use CMake to consume them.

Also, upstream tests (amongst other things) only run when building with
Meson.

Hence, this is not going to change -- the recommended way to consume
spng is via .pc files.

Hope it makes sense! Bye :)