Upstream dependency go-ieproxy requires CGO

[vangent]

I have a project that depends on azure-pipeline-go, and a user has reported that it no longer compiles unless CGO compilation is enabled. This is new in the 0.0.2 and 0.0.3 version of go-ieproxy.

google/go-cloud#3114 is the bug report. Basically, compilation fails unless CGO_ENABLED=1 (Go defaults it to 1 in some scenarios, but you can always disable it).

[caarlos0]

Hey, thanks for opening it here @vangent

an idea here would be to not use ieproxy by default... users could still add it to their clients should they see it fit...

If y'all think that's acceptable, I can work on a PR for it.

[vangent]

Anything to not make CGO required by default would be great.

[gildas]

ieporxy is now on 0.0.6 and I use azure-storage-blob-go.
After updating the packages in my go.mod, my project cannot compile anymore:

github.com/mattn/go-ieproxy
# github.com/mattn/go-ieproxy
../../../go/pkg/mod/github.com/mattn/go-ieproxy@v0.0.6/ieproxy.go:36:9: undefined: getConf
../../../go/pkg/mod/github.com/mattn/go-ieproxy@v0.0.6/ieproxy.go:41:9: undefined: reloadConf
../../../go/pkg/mod/github.com/mattn/go-ieproxy@v0.0.6/ieproxy.go:48:2: undefined: overrideEnvWithStaticProxy
../../../go/pkg/mod/github.com/mattn/go-ieproxy@v0.0.6/ieproxy.go:53:13: psc.findProxyForURL undefined (type *ProxyScriptConf has no field or method findProxyForURL, but does have FindProxyForURL)

[caarlos0]

One important thing to notice here: for now, this package specifies to depend on github.com/mattn/go-ieproxy v0.0.1, which does not have this issue.

Bottom line is: do not update go-ieproxy if you don't need to

[hairyhenderson]

Now that mattn/go-ieproxy#34 is fixed and go-ieproxy v0.0.8+ has support for not using CGO, perhaps the upstream dependency could be upgraded again, and this issue could be closed?