Fix missing SDL_strtokr.c

[ericoporto]

Fix emscripten-ports/SDL2#159

I don't know why the CI doesn't run for my PRs.

[Daft-Freak]

Looks like stdlib/SDL_crc32.c is also missing. I'll go check if I missed anything else... (made the mistake of assuming CI would catch everything)

EDIT: Found some more: locale/SDL_locale.c locale/emscripten/SDL_syslocale.c misc/SDL_url.c misc/dummy/SDL_sysurl.c

[ericoporto]

@Daft-Freak feel free to open a new PR with all of these, there's something that makes my PRs not trigger the CI, so I think you will be able to merge it sooner. Nonetheless, I added all the mentioned sources in case someone wants to merge these.

[kripken]

I filed a ticket now with circleci so I hope that CI will be fixed soon.

[ericoporto]

I rebased to a single commit, but the CI seems to not be working yet. The code changes are small.

Apparently it broke after: #15452

[kripken]

I still haven't heard back from circleci. Sorry about that. Let's give it another day - if they still do not respond I will both escalate with them + open a manual PR here myself with your changes to get test coverage.

[ericoporto]

@kripken don't worry, have a good afternoon. Things always workout eventually. :)

[kripken]

Still no word so I pulled to a branch to force tests. Looks like there is a failure on linting, there is some whitespace added here, a space at the end of a line,

./tools/ports/sdl2.py:60:101: W291 trailing whitespace

https://app.circleci.com/pipelines/github/emscripten-core/emscripten/18276/workflows/ad31ba1b-d758-404a-9a89-1438d06e2b8c/jobs/493087

Aside from that tests are still running but looks good so far.

[ericoporto]

I push forced and removed the trailing whitespace!

[kripken]

Tests finished, the only issue is the lint problem.