kbuild: allow to combine multiple V= levels
Commit a6de553da01c ("kbuild: Allow to combine multiple W= levels")
supported W=123 to enable all the extra warning groups.
I think a similar idea is applicable to the V= option.
V=1 echos the whole command
V=2 prints the reason for rebuilding
These are orthogonal, and can be enabled at the same time.
This commit supports V=12 to enable both of them.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Tested-by: Nicolas Schier <nicolas@fjasle.eu>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
diff --git a/scripts/tags.sh b/scripts/tags.sh
index e137cf1..2e756bee 100755
--- a/scripts/tags.sh
+++ b/scripts/tags.sh
@@ -8,7 +8,7 @@
# Uses the following environment variables:
# SUBARCH, SRCARCH, srctree
-if [ "$KBUILD_VERBOSE" = "1" ]; then
+if [[ "$KBUILD_VERBOSE" =~ 1 ]]; then
set -x
fi
