go: fix cross compile

Author: dkwo

srcpkgs/go/template

@@ -1,7 +1,7 @@
 # Template file for 'go'
 pkgname=go
 version=1.21.4
-revision=1
+revision=2
 create_wrksrc=yes
 build_wrksrc=go
 hostmakedepends="go1.17-bootstrap"
@@ -18,14 +18,20 @@ noverifyrdeps=yes
 # on CI it tries to use `git submodule`, which is not part of chroot-git
 make_check=ci-skip
 
+# keep in sync with common/environment/build-style/go.sh
 case "${XBPS_TARGET_MACHINE}" in
-	aarch64*) _goarch=arm64 ;;
-	arm*) _goarch=arm ;;
-	i686*) _goarch=386 ;;
-	x86_64*) _goarch=amd64 ;;
-	ppc64le*) _goarch=ppc64le ;;
-	mips*) _goarch=mips ;;
-	riscv64*) _goarch=riscv64 ;;
+	aarch64*) export GOARCH=arm64;;
+	armv5*) export GOARCH=arm; export GOARM=5;;
+	armv6*) export GOARCH=arm; export GOARM=6;;
+	armv7*) export GOARCH=arm; export GOARM=7;;
+	i686*) export GOARCH=386;;
+	x86_64*) export GOARCH=amd64;;
+	ppc64le*) export GOARCH=ppc64le;;
+	ppc64*) export GOARCH=ppc64;;
+	ppc*) export GOARCH=ppc;;
+	mipsel*) export GOARCH=mipsle;;
+	mips*) export GOARCH=mips;;
+	riscv64*) export GOARCH=riscv64;;
 	*) broken="Unsupported architecture ${XBPS_TARGET_MACHINE}" ;;
 esac
 
@@ -56,7 +62,6 @@ do_build() {
 
 	export GOROOT_BOOTSTRAP="/usr/lib/go1.17.13"
 	export GOROOT=$PWD
-	export GOARCH=${_goarch}
 
 	cd "src"
 
@@ -76,7 +81,7 @@ do_install() {
 	local bindir
 
 	if [ "$CROSS_BUILD" ]; then
-		bindir=bin/linux_${_goarch}
+		bindir=bin/linux_${GOARCH}
 	else
 		bindir=bin
 	fi