gh-99108: Import MD5 and SHA1 from HACL* by msprotz · Pull Request #102089 · python/cpython

before I dig further into this, would you like all of the hacl files to be bundled into a single libhacl.a? or is it ok to rely on the existing build system to build single .o files for the non-sha2 algorithms?

I think what you've done in ths PR should work fine. one .c file for each of md5 and sha1, no specific need for a library.

from a build simplicity perspective with the way we have things set up in our plethora of build configs, the lesson from the sha2 stuff was not to reuse the same .c/.o/.a with non-static symbols in multiple extension modules. (i may not have needed the .a for sha2 in the end but i decided to leave it in place when merging sha256 and sha512 into sha2 - if we don't need it setup that way in the end it could be undone later to just be the .c file as these are)