It can be useful to overwrite an already generated config.
Option are simply added at the end of the config and make defconfig
will overwrite the relevant option with the new one.
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
test_c() {
cat <<-EOT | "${CC:-false}" $CFLAGS -o /dev/null -x c - 2>/dev/null
test_c() {
cat <<-EOT | "${CC:-false}" $CFLAGS -o /dev/null -x c - 2>/dev/null
fi
# bail out if there is a .config already
fi
# bail out if there is a .config already
- if [ -f "${0%/scripts/*}/.config" ]; then
- echo "There already is a .config file, refusing to overwrite!" >&2
- return 1
+ if [ -f "$config" ]; then
+ if [ "$OVERWRITE_CONFIG" == "" ]; then
+ echo "There already is a .config file, refusing to overwrite!" >&2
+ return 1
+ else
+ echo "There already is a .config file, trying to overwrite!"
+ fi
fi
case "$mktarget" in */*)
fi
case "$mktarget" in */*)
mktarget="${mktarget%/*}"
;; esac
mktarget="${mktarget%/*}"
;; esac
+ if [ ! -f "$config" ]; then
+ touch "$config"
+ fi
- echo "CONFIG_TARGET_${mktarget}=y" > "$config"
+ echo "CONFIG_TARGET_${mktarget}=y" >> "$config"
if [ -n "$mksubtarget" ]; then
echo "CONFIG_TARGET_${mktarget}_${mksubtarget}=y" >> "$config"
if [ -n "$mksubtarget" ]; then
echo "CONFIG_TARGET_${mktarget}_${mksubtarget}=y" >> "$config"
+ --overwrite-config)
+ OVERWRITE_CONFIG=y
+ ;;
+
--config)
if probe_cc; then
print_config "$1"
--config)
if probe_cc; then
print_config "$1"
echo -e " is used to specify C flags to be passed to the " >&2
echo -e " cross compiler when performing tests." >&2
echo -e " This parameter may be repeated multiple times." >&2
echo -e " is used to specify C flags to be passed to the " >&2
echo -e " cross compiler when performing tests." >&2
echo -e " This parameter may be repeated multiple times." >&2
+ echo -e " Use --overwrite-config before --config to overwrite" >&2
+ echo -e " an already present config with the required changes.">&2