ports: Some enhancements in make-package.sh

tools/make-package.sh

@@ -29,7 +29,7 @@ source ports/$PORT_NAME/PACKAGE
 [ -z ${url+x} ] && show_error "error: The port's PACKAGE file does not have a 'url' key."
 
 if ! [ -z ${dependencies+x} ]; then
-    echo "Installing dependencies of $name: ($dependencies)"
+    echo "Installing dependencies of $name: (${dependencies[@]})"
     for dep in ${dependencies[@]}; do
         tools/install-package.sh $dep
     done
@@ -48,15 +48,22 @@ case $format in
     tar)
         [ -z ${output+x} ] && show_error "error: The 'tar' download format needs an 'output' key."
         [ -z ${sha256sum+x} ] && show_error "error: The 'tar' download format needs a 'sha256sum' key."
+        if ! [ -f $output ]; then 
             echo "Downloading tarball for $name..."
             wget $url --quiet
+        else
+            echo "Using cached tarball for $name."
+        fi
         echo "$sha256sum $output" | sha256sum -c
         tar xf $output
-        rm $output
         ;;
     git)
+        if ! [ -d $srcdir]; then
             echo "Cloning repository for $name..."
             git clone $url $srcdir
+        else
+            echo "Using local repository for $name."
+        fi
         if ! [ -z ${tag+x} ]; then
             cd $srcdir
             git checkout $tag
@@ -68,12 +75,14 @@ case $format in
         ;;
 esac
 
+if ! [ "$set_cc_variables" = "no" ]; then
 export CC=x86_64-luna-gcc
 export CXX=x86_64-luna-g++
 export PKG_CONFIG=luna-pkg-config
 export CC_FOR_BUILD=gcc
 export CXX_FOR_BUILD=g++
 export PKG_CONFIG_FOR_BUILD=pkg-config
+fi
 
 mkdir -p $builddir
 cd $builddir