Convert the old-style (K&R) function definitions in plow/ to ANSI C
prototypes, formatted in the project's convention: the return type on its
own line and each parameter on its own line, indented four spaces, with
the original parameter comments retained.
Builds cleanly under GCC 16 / C23 (with the -std=gnu17 build change).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit makes the code (mostly) C99-compatible, enabling to compile
it without the -Wno-error=implicit-function-declaration flag. This
way, Magic becomes usable on arm64 architectures, specifically on Apple
computers with M1/M2 SoC.
Andreas Wendleder
Darryl L. Miles
Alessandro De Laurenzis
Tim Edwards