Add static to functions defined in library header.

[lcirrottola]

Hello,

When including "libsupermesh-c.h" in several *.c files, the linker raises a "multiple definition" error for libsupermesh_max_n_tris_c and libsupermesh_max_n_tets_c. In fact these functions are defined (and not just declared) in the header, so they do get defined multiple times when the header is included in different *.c files.

This patch proposes to solve this by adding static keyword to restrict the visibility of these function only to the current translation unit.

[connorjward]

Thanks this makes sense. I need to fix CI before this goes in but this should be fine.

[connorjward]

That's now done. Can you merge in the latest upstream/main and ping me to let the CI run.

[lcirrottola]

@connorjward Done! Thanks!

[connorjward]

Thanks!