MacOS Sequoia final 15.0 (x86_64): plenty of ports are broken and no longer compile

[SaintBol]

Fresh reinstall of macports on Sequoia. Plenty of ports no longer compile, looks like a generic problem with Apple clang version 16.0.0 (clang-1600.0.26.3).

Many of them complain about fatal error / file not found for #include lines with some <include> stuff, like in bug #70749

Other ones complain (error) either during compilation or even configure phase about: «ISO C99 and later do not support implicit int [-Wimplicit-int]» or «ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]»

Attached logs for db48, lzip, lrzsz, libssh2, python312, lz4, smartmontools, tmux, unrar.

[SaintBol]

compilation logs