Build fails when building on an environment without gcc

[ken-unio]

When building a project with bitstruct in a minimal docker container without gcc, the container build fails as the bitstruct.c dependencies cannot find the gcc compiler.

As the C extensions are optional, I would have expected a warning to be printed but not have the entire build fail if they were not able to be compiled.

gcc -pthread -fno-strict-overflow -Wsign-compare -DNDEBUG -g -O3 -Wall -fPIC -I/tmp/tmpj689ldeb/.venv/include -I/usr/local/include/python3.12 -c src/bitstruct/bitstream.c -o build/temp.linux-aarch64-cpython-312/src/bitstruct/bitstream.o
#10 94.63   error: command 'gcc' failed: No such file or directory
#10 94.63   
#10 94.63 
#10 94.63   at /usr/local/lib/python3.12/site-packages/poetry/installation/chef.py:164 in _prepare
#10 94.68       160│ 
#10 94.68       161│                 error = ChefBuildError("\n\n".join(message_parts))
#10 94.68       162│ 
#10 94.68       163│             if error is not None:
#10 94.68     → 164│                 raise error from None
#10 94.68       165│ 
#10 94.68       166│             return path
#10 94.68       167│ 
#10 94.68       168│     def _prepare_sdist(self, archive: Path, destination: Path | None = None) -> Pat

[zariiii9003]

Could you try PR #44?

[eerimoq]

Tons on changes. Are all really necessary? Why use scikit?