Reading of options from env variables is broken in setup.py (e.g. BUILD_WITH_BORING_SSL_ASM) #24498
Description
What version of gRPC and what language are you using?
1.32.0
What operating system (Linux, Windows,...) and version?
Linux
What runtime / compiler are you using (e.g. python version or version of gcc)
GCC 10
What did you do?
Noticed that there's no possible value that can be passed through as BUILD_WITH_BORING_SSL_ASM that will disable boringssl https://github.com/grpc/grpc/blob/master/setup.py#L109-L110
Since there's no int() conversion of input (or similar), all possible inputs will be regarded as true.
What did you expect to see?
It's possible to disable boringssl asm when using system ssl
What did you see instead?
It's not possible to disable boringssl asm when using system ssl