cmake: fluidsynth package can contain versioned fluidsynth libraries

[madebr]

This was changed in FluidSynth/fluidsynth#1546

Closes #755

[sezero]

As far as I can see this is a cheat / a bandaid n our part to workaround mainstream's breakage, and a cmake-specific one at that? What does their *.pc file look like? Becuease if it says -lfludsynth, other build systems, autotools for e..g., are broken as well, and we should wait for mainstream to fix their sh^w^w thing instead and not do this?

[madebr]

Looks like they require the suffix:

prefix=/mingw64
exec_prefix=${prefix}
libdir=${exec_prefix}/lib
includedir=${prefix}/include

Name: FluidSynth
Description: Software SoundFont synth
Version: 2.4.8
Requires.private: glib-2.0 gthread-2.0 sndfile portaudio-2.0 gmodule-2.0 sdl3 readline
Libs: -L${libdir} -lfluidsynth-3
Libs.private: -ldsound -lksuser -lwinmm -lole32 -lws2_32 ${prefix}/lib/libgomp.dll.a ${prefix}/lib/libmingwthrd.a
Cflags: -I${includedir}

[sezero]

Looks like they require the suffix:

Geez.. Where the hell did they get that idea...

[sezero]

Mainstrean issue: FluidSynth/fluidsynth#1645

Looks like they require the suffix:

Geez.. Where the hell did they get that idea...

Looks like it happened in FluidSynth/fluidsynth#1548 as a followup
to FluidSynth/fluidsynth#1546