Installation instructions

[cmitu]

Hello,

I'm trying to build and install dosbox-staging under Linux (Debian testing/trixie, x86_64). The build works fine with passing the installation folder with meson --prefix, but the install action seems to not be copying the necessary dependencies (subprojects libraries) to the installation destination.
In my case, iir and munt libraries are built:

meson setup  --prefix /home/mitu/emulators/dosbox build
....
dosbox-staging 0.82.0-alpha

  Build Summary
    Build type            : release
    Install prefix        : /home/mitu/emulators/dosbox
    SIMD instruction sets : native, SSE2, SSSE3
    Host page size (bytes): 4096

    zlib-ng provider      : skipped (meson is < 1.3.0)
    zlib provider         : system library
    PNG provider          : system library
    SpeexDSP provider     : system library
    SDL_net 2.0 support   : True
    slirp support         : True
    FluidSynth support    : True
    mt32emu support       : True
    ManyMouse support     : True
    ALSA support          : True
    Byte order            : little-endian
    Per-page W^X          : True
    CPU dynamic core      : optimized for x86/x86_64 (dyn-x86)
    CPU core target arch  : X86_64

  Subprojects
    iir                   : YES
    mt32emu               : YES 1 warnings

  User defined options
    prefix                : /home/mitu/emulators/dosbox

but when using the meson install -C build command, only the iir dependency is copied:

...
Installing /home/mitu/src/dosbox-staging/contrib/resources/translations/nl.lng to /home/mitu/emulators/dosbox/share/dosbox-staging/translations
Installing /home/mitu/src/dosbox-staging/contrib/resources/translations/pl.lng to /home/mitu/emulators/dosbox/share/dosbox-staging/translations
Installing /home/mitu/src/dosbox-staging/contrib/resources/translations/ru.lng to /home/mitu/emulators/dosbox/share/dosbox-staging/translations
Installing /home/mitu/src/dosbox-staging/build/meson-private/iir.pc to /home/mitu/emulators/dosbox/lib/x86_64-linux-gnu/pkgconfig
Installing symlink pointing to libiir.so.1.9.3 to /home/mitu/emulators/dosbox/lib/x86_64-linux-gnu/libiir.so.1
Installing symlink pointing to libiir.so.1 to /home/mitu/emulators/dosbox/lib/x86_64-linux-gnu/libiir.so

The only install related instruction found in the docs is the mention of symlinking the binary somewhere in $PATH from the build folder. Even though the docs (BUILD.md) mention that static libraries for not found dependencies are built, this doesn't seem to be the case (anymore ?).