Using Nelua with Cosmopolitan to produce build-once run-anywhere executables

[novusnota]

Didn't see it discussed anywhere else, so I wanted to throw that in :)

Since Nelua can output intermediate C code it compiles to, that output can be then piped to Cosmopolitan CC to produce a single executable that runs natively on Linux + Mac + Windows + FreeBSD + OpenBSD 7.3 + NetBSD + BIOS with the best possible performance and the tiniest footprint imaginable.

The following steps are provided for Linux, but can be easily geared towards your OS:

1. Download cosmocc-X.Y.Z.zip and extract it somewhere, just so you can call cosmocc.
2. Run nelua --print-code YOUR_NELUA_ENTRYPOINT.nelua > SOME_NAME.c to obtain SOME_NAME.c file
3. Run cosmocc -O3 -o RESULTING_EXE_NAME SOME_NAME.c to obtain the executable that'll run on any of the platforms described earlier. Consider adding -mtiny flag to reduce the size of the resulting executable at the expense of introducing GIL and limiting multithreaded execution.
4. ???
5. Profit!

P.S.: I'm very new to Nelua and some or all steps might not be optimal :)

[stefanos82]

2. Run `nelua --print-code YOUR_NELUA_ENTRYPOINT.nelua > SOME_NAME.c` to obtain `SOME_NAME.c` file

No need to go through this; just run nelua --cc=cosmocc --release --strip-bin NELUA_ENTRYPOINT.nelua -o MYEXE