Merge pull request #3285 from MilhouseVH/le90_meson_props_backport

config/functions: add cross-compile property support [backport]

config/functions

@@ -332,7 +332,7 @@ setup_toolchain() {
 }
 
 create_meson_conf() {
-  local endian root
+  local endian root properties
   case "$1" in
     target|init)    endian="little"
                     root="$SYSROOT_PREFIX/usr"
@@ -342,6 +342,8 @@ create_meson_conf() {
                     ;;
   esac
 
+  properties="PKG_MESON_PROPERTIES_${1^^}"
+
   cat > $2 <<EOF
 [binaries]
 c = '$CC'
@@ -361,6 +363,7 @@ endian = '$endian'
 root = '$root'
 $(python -c "import os; print('c_args = {}'.format([x for x in os.getenv('CFLAGS').split()]))")
 $(python -c "import os; print('c_link_args = {}'.format([x for x in os.getenv('LDFLAGS').split()]))")
+${!properties}
 EOF
 }