* d/postinst: Drop priority of go alternative to ensure that golang-go has priority on supported architectures. * d/p/cmdgo.patch,d/rules: Use dpkg build flags during compilation (LP: #1279624). * d/p/issue61970044_40001.diff: Cherry pick fix to avoid having to use the -work flag when compiling go using gccgo (LP: #1279157). * d/p/gccgo-stdlib-ignore.patch: Add additional checks for stdlib paths under gccgo to allow use of go test -i (LP: #1279157).