grpc: uses zlib from macos, install .so files on linux

[iMichka]

• Have you followed the guidelines for contributing?
• Have you checked that there aren't other open pull requests for the same formula update/change?
• Have you built your formula locally with brew install --build-from-source <formula>, where <formula> is the name of the formula you're submitting?
• Is your test running fine brew test <formula>, where <formula> is the name of the formula you're submitting?
• Does your build pass brew audit --strict <formula> (after doing brew install <formula>)?

---

[iMichka]

On Big Sur:

2020-12-23T01:26:27.3374580Z /usr/local/Homebrew/Library/Homebrew/shims/mac/super/clang++ -Dgpr_EXPORTS -I/tmp/grpc-20201223-89359-1yzmh3j/include -I/tmp/grpc-20201223-89359-1yzmh3j -I/tmp/grpc-20201223-89359-1yzmh3j/third_party/address_sorting/include -I/tmp/grpc-20201223-89359-1yzmh3j/src/core/ext/upb-generated -I/tmp/grpc-20201223-89359-1yzmh3j/src/core/ext/upbdefs-generated -I/tmp/grpc-20201223-89359-1yzmh3j/third_party/upb -DNDEBUG -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -fPIC -std=c++17 -o CMakeFiles/gpr.dir/src/core/lib/profiling/basic_timers.cc.o -c /tmp/grpc-20201223-89359-1yzmh3j/src/core/lib/profiling/basic_timers.cc
2020-12-23T01:26:27.3379270Z make[2]: *** No rule to make target /Library/Developer/CommandLineTools/SDKs/MacOSX11.0.sdk/System/Library/Frameworks/CoreFoundation.framework', needed by libgpr.13.0.0.dylib'. Stop.
2020-12-23T01:26:27.3380620Z make[2]: *** Waiting for unfinished jobs....

[carlocab]

Was able to fix this locally. Rebuilding all the formulae it depends on works. At least one of them has the versioned Big Sur SDK path baked in. You can skip rebuilding openssl; it's not that.

I did try being smarter about which of the dependencies to rebuild, but that didn't work, so I just rebuilt all of them except for openssl.

[carlocab]

This might be related to Homebrew/brew#10127; not sure. @Bo98

[iMichka]

Rev-bumping abseil worked.

[carlocab]

Good to know.

I first tried bumping protobuf since the error log looked related to a zlib dependency, and protobuf was the only one that had linkage with zlib. But then rebuilding grpc lead to a different error complaining about not being able to find the CoreFoundation framework which... looked like all of the dependencies. So I ran out of patience and just rebuilt all of them. 😅

[BrewTestBot]

🤖 A scheduled task has triggered a merge.