Merge pull request #4676 from MilhouseVH/less_messy_locking

build: Take a lock on the package download directory

scripts/get

@@ -32,7 +32,7 @@ if [ -n "$PKG_URL" ]; then
 
   # Avoid concurrent downloads of the same package
   _isblocked=N
-  exec 99>$SOURCES/$1/.lock
+  exec 99<$SOURCES/$1
   while ! flock --nonblock --exclusive 99; do
     [ ${_isblocked} == N ] && { echo "Project ${PROJECT} waiting to avoid concurrent download of ${1}..."; _isblocked=Y; }
     sleep 1