`termux_go_get`: Do not override `$GOPATH`

packages/hugo/build.sh

@@ -10,6 +10,7 @@ TERMUX_PKG_BUILD_IN_SRC=true
 
 termux_step_make() {
 	termux_setup_golang
+	export GOPATH=$TERMUX_PKG_SRCDIR/go
 	termux_go_get
 	go build \
 		-o hugo \

scripts/build/setup/termux_setup_golang.sh

@@ -43,10 +43,12 @@ termux_setup_golang() {
 
 termux_go_get() {
 	if $TERMUX_ON_DEVICE_BUILD; then
-		if $TERMUX_PKG_BUILD_IN_SRC; then
-			export GOPATH=$TERMUX_PKG_SRCDIR/go
-		else
-			export GOPATH=$TERMUX_PKG_BUILDDIR/go
+		if [ -z ${GOPATH+x} ]; then
+			if $TERMUX_PKG_BUILD_IN_SRC; then
+				export GOPATH=$TERMUX_PKG_SRCDIR/go
+			else
+				export GOPATH=$TERMUX_PKG_BUILDDIR/go
+			fi
 		fi
 		if [ -d $TERMUX_PKG_CACHEDIR/go ]; then
 			cp $TERMUX_PKG_CACHEDIR/go $GOPATH -r