kbuild: fix warning when domainname is not available

Otherwise we get: "dnsdomainname: Unknown host" Signed-off-by: Felipe Contreras <[email protected]> Acked-by: WANG Cong <[email protected]> Signed-off-by: Sam Ravnborg <[email protected]>
blinkosm · Oct 11, 2009 · 9c3049c · 9c3049c
1 parent 58242b2
commit 9c3049c
Showing 1 changed file with 6 additions and 2 deletions.
diff --git a/scripts/mkcompile_h b/scripts/mkcompile_h
@@ -66,9 +66,13 @@ UTS_TRUNCATE="sed -e s/\(.\{1,$UTS_LEN\}\).*/\1/"
   echo \#define LINUX_COMPILE_HOST \"`hostname | $UTS_TRUNCATE`\"
 
   if [ -x /bin/dnsdomainname ]; then
-    echo \#define LINUX_COMPILE_DOMAIN \"`dnsdomainname | $UTS_TRUNCATE`\"
+    domain=`dnsdomainname 2> /dev/null`
   elif [ -x /bin/domainname ]; then
-    echo \#define LINUX_COMPILE_DOMAIN \"`domainname | $UTS_TRUNCATE`\"
+    domain=`domainname 2> /dev/null`
+  fi
+
+  if [ -n "$domain" ]; then
+    echo \#define LINUX_COMPILE_DOMAIN \"`echo $domain | $UTS_TRUNCATE`\"
   else
     echo \#define LINUX_COMPILE_DOMAIN
   fi