App not building on macOS

[zetsub0]

Describe the bug Got error whyle trying to build on macOS:

make build

go build -pgo=auto -o spqr-balancer -ldflags "-X github.com/pg-sharding/spqr/pkg.GitRevision=`git rev-parse --short HEAD` -X github.com/pg-sharding/spqr/pkg.SpqrVersion=`git describe --tags --abbrev=0`" -gcflags=all="-N -l" ./cmd/balancer
# github.com/pg-sharding/spqr/pkg/conn
pkg/conn/instance.go:190:52: undefined: syscall.SOL_TCP
make: *** [build_balancer] Error 1

To Reproduce Steps to reproduce the behavior:

1. Clone repo
2. execute make build

Desktop (please complete the following information):

• MacBook m3 pro
• OS: macOS
• Version 14.4 (23E214)

Additional context I'm not sure but but it seems to me that syscall.IPPROTO_TCP is more suitable than syscall.SOL_TCP in this context. Changed it locally and app built successfully.

[Denchick]

Hi, @zetsub0! We are trying to set up a user tcp socket timeout and, yes, we broke the build on Mac OS. As a temporary workaround, you can comment out this line locally, and then the build will pass.

If you know how to fix this problem, we are open for your PRs!

[Denchick]

I think we need to do something here to make the router buildable.