kbuild: deb-pkg: use default string when variable is unset or null
${DEBFULLNAME-${user}} falls back to ${user} when DEBFULLNAME is unset.
It is more reasonable to do so when DEBFULLNAME is unset or null.
Otherwise, the command:
$ DEBFULLNAME= make deb-pkg
will leave the name field blank.
The same applies to KBUILD_BUILD_USER and KBUILD_BUILD_HOST.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
diff --git a/scripts/package/mkdebian b/scripts/package/mkdebian
index f962d30..10637d4 100755
--- a/scripts/package/mkdebian
+++ b/scripts/package/mkdebian
@@ -125,12 +125,12 @@
rm -rf debian
mkdir debian
-user=${KBUILD_BUILD_USER-$(id -nu)}
-name=${DEBFULLNAME-${user}}
+user=${KBUILD_BUILD_USER:-$(id -nu)}
+name=${DEBFULLNAME:-${user}}
if [ "${DEBEMAIL:+set}" ]; then
email=${DEBEMAIL}
else
- buildhost=${KBUILD_BUILD_HOST-$(hostname -f 2>/dev/null || hostname)}
+ buildhost=${KBUILD_BUILD_HOST:-$(hostname -f 2>/dev/null || hostname)}
email="${user}@${buildhost}"
fi
maintainer="${name} <${email}>"
