Disable GSSAPI when CGO is enabled to support DNS resolution

Makefile

@@ -5,7 +5,7 @@ OS := $(shell uname | tr A-Z a-z)
 GO_SOURCES := $(shell git ls-files \*.go)
 VERSION_STRING := $(shell git describe --match v* 2>/dev/null || awk '$$0="v"$$0' VERSION 2>/dev/null || echo unknown)
 BUILD_TIME := $(shell date -u +%Y%m%d.%H%M%S)
-BUILD_TAGS := tracer_static tracer_static_jaeger continuous_profiler_stackdriver
+BUILD_TAGS := tracer_static tracer_static_jaeger continuous_profiler_stackdriver gssapi
 
 ARCH ?= $(shell uname -m | sed -e 's/x86_64/amd64/' | sed -e 's/aarch64/arm64/')
 

internal/sshd/gssapi.go

-//go:build cgo
+//go:build gssapi
 
 package sshd
 

internal/sshd/gssapi_test.go

-//go:build cgo
+//go:build gssapi
 
 package sshd
 

internal/sshd/gssapi_unsupported.go

-//go:build !cgo
+//go:build !gssapi
 
 package sshd