this post was submitted on 28 May 2025
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Python needs an actual default function (lemmy.ml)
submitted 1 week ago by HiddenLayer555@lemmy.ml to c/programmer_humor@programming.dev
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Also, do y'all call main() in the if block or do you just put the code you want to run in the if block?

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[–] anton@lemmy.blahaj.zone 3 points 1 week ago* (last edited 1 week ago)

If you want to have a library that can also be a standalone executable, just put the main function in an extra file and don't compile that file when using the library as a library.
You could also use the preprocessor to do it similar to python but please don't.

Just use any build tool, and have two targets, one library and one executable:

LIB_SOURCES = tools.c, stuff.c, more.c
EXE_SOURCES = main.c, $LIB_SOURCES

Edit: added example