t1lib 5.1.2_3: has implicit int which is not supported under Xcode 15

[rbeyer (Ross Beyer)]

Upon trying to build t1lib (for texlive), it failed to build with this error:

:info:build regions.c:602:45: error: parameter 'y2' was not declared, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]

There was another of the same kind for x2 but this likely another issue with Xcode 15 being more strict than the past. Hopefully this is another easy port fix.

[rbeyer (Ross Beyer)]

main.log file from run of port install t1lib

[jmroot (Joshua Root)]

Red Hat has some patches that should help: ​https://src.fedoraproject.org/rpms/t1lib/tree/rawhide

We should also make sure it uses an appropriately old standard like -std=gnu89 since this issue is on top of the fact that the code uses K&R style declarations, which are no longer allowed as of C23.

[rbeyer (Ross Beyer)]

I don't have the expertise to fix this, and was hoping that someone else might be able to patch up this portfile? It is currently blocking my ability to build texlive, and may be a blocker for others. Thank you.