amalgamate.sh doesn't work on linux + musl-libc + arm64 systems, please provide a simple amalgamation command that works

[ell1e]

amalgamate.sh doesn't work on linux + musl-libc + arm64 systems because the test compilation causes this error:

/usr/bin/ld: cannot find /usr/lib/llvm16/lib/clang/16/lib/linux/libclang_rt.ubsan_standalone-aarch64.a: No such file or directory

It would be nice if some command actually just amalgamated without doing whatever complex compilation tasks with options that might break and aren't strictly necessary to just get the resulting baked files for use.

For example, you could move all the testing into some test_and_amalgamate.sh and strip down amalgamate.sh to make it not do all the test compilations and to make it just produce the files instead.

[ell1e]

Seems like I actually brought this up before half a year ago: #273

It would be nice if there could be a fix for this soon. If you want me to make a pull request, let me know.

[ell1e]

I made a pull request now: #294