libfuse: split build systems and simplify package

[albestro]

Changes:

• split meson and autotools buildsystem, which streamlines and simplifies the package recipe
• autotools: do not depend anymore on meson
• autotools: drop manual management of autoreconf and its parameters

TODO:

• autotools do not have access anymore to the meson specific "default_library" variant

note: this refactoring started because of a problem I had with autotools, which after this work turns out to not be a problem anymore.

[albestro]

As said above, before this refactoring I had a problem. Specifically, the problem happens building libfuse@2.9 (i.e. using autotools) and it shows up as

libtool: Version mismatch error.  This is libtool 2.5.4, but the
libtool: definition of this LT_INIT comes from libtool 2.4.6.
libtool: You should recreate aclocal.m4 with macros from libtool 2.5.4
libtool: and run autoconf again.

I don't know much about autotools build system, but from my investigation I'd say that this problem was due to the order of include paths -I. In particular, /usr/share/aclocal was given before libtool one, and it is reasonable to think that it ended up using macros from system provided libtool (it was actually 2.4.6), but with the executable of the build dependency (libtool 2.5.4)

BEFORE

==> [2026-02-18-09:26:08.164442] '/tmp/tmp.tqWhRm1Ouh/spack-store/linux-neoverse_v2/autoconf-2.72-kknul26om4h7xx6ipw7geofwgjsjw4e7/bin/autoreconf' '-ivf'
'-I' '/tmp/tmp.tqWhRm1Ouh/spack-store/linux-neoverse_v2/automake-1.18.1-utgdw2nmkydqcvpmshyykriyhwkjh4yq/share/aclocal'
'-I' '/usr/share/aclocal'
'-I' '/tmp/tmp.tqWhRm1Ouh/spack-store/linux-neoverse_v2/gettext-1.0-xbic5b2j4mwqk3g6aawr7m67huta7np3/share/aclocal'
'-I' '/tmp/tmp.tqWhRm1Ouh/spack-store/linux-neoverse_v2/libtool-2.5.4-hsdn3hoagdd7yhslxb2thawtzhumzw5o/share/aclocal'
'-I' '/capstor/store/cscs/cscs/csstaff/ialberto/alps/aarch64/sw-stack/view/share/aclocal' 
'-I' '/tmp/tmp.tqWhRm1Ouh/spack-store/linux-neoverse_v2/pkgconf-2.5.1-ywb2le5cdfjhi35vouggocfc6hd4wsws/share/aclocal'

NOW (with force_autoreconf=True)

==> [2026-02-18-09:59:58.306306] '/tmp/tmp.tqWhRm1Ouh/spack-store/linux-neoverse_v2/autoconf-2.72-kknul26om4h7xx6ipw7geofwgjsjw4e7/bin/autoreconf' '-ivf'
'-I' '/tmp/tmp.tqWhRm1Ouh/spack-store/linux-neoverse_v2/gettext-1.0-xbic5b2j4mwqk3g6aawr7m67huta7np3/share/aclocal'
'-I' '/tmp/tmp.tqWhRm1Ouh/spack-store/linux-neoverse_v2/libtool-2.5.4-hsdn3hoagdd7yhslxb2thawtzhumzw5o/share/aclocal'
'-I' '/usr/share/aclocal'

With this refactoring, the management is completely delegated to spack, who does the right thing. With the refactoring it works both with and without force_autoreconf, anyway I'd opt for not forcing it.

[michaelkuhn]

LGTM and works for me (Fedora 43, GCC 15)

I needed to apply #3504 for libfuse@2 to compile, though.

[michaelkuhn]

gmake is probably also only required for autotools, right?

[albestro]

done in c5a7d7c 😉

[alalazo]

Feel free to merge if you're not waiting for further comments / reviews