Case insensitivity strikes again ("failed to move output file" while building Python on Mac)

[mrdomino]

The symptom is this:

% make MODE=aarch64 o/aarch64/third_party/python

failed to move output file
/Users/joshin/src/cosmo/o/tmp/o_aarch64_third_party_python_python
o/aarch64/third_party/python/python
.cosmocc/3.3.3/bin/aarch64-linux-cosmo-objcopy -S o/aarch64/third_party/python/python.dbg o/aarch64/third_party/python/python
consumed 8,805µs wall time
ballooned to 12,544kb in size
needed 7,492us cpu (66% kernel)
caused 1,474 page faults (99% memcpy)
39 context switches (5% consensual)

make: *** [build/rules.mk:27: o/aarch64/third_party/python/python] Error 90

The cause seems to be that there is a o/aarch64/third_party/python/Python directory, and Mac filesystems are usually case-insensitive.

[croqaz]

Hey! I'm not a maintainer of this repo, but I was able to run this command no problem on Debian Linux. My filesystems is also case-insensitive.

[mrdomino]

How is your file system case insensitive on Linux? Usually Linux is case sensitive, in which case the command would succeed.

[croqaz]

Ugh you're right, sorry about that. Please ignore my comment. My ingrish is failing me.

[croqaz]

I suppose in that case the Windows build should also fail: https://learn.microsoft.com/en-us/windows/wsl/case-sensitivity

[mrdomino]

third_party/python/Python is just part of the source distribution. It's probably not practical to rename it.

So I think the binary needs to go somewhere else, or be called something else.

I suggest, as a really lame cop-out, naming it python3.

[mrdomino]

@jart?