kbuild: fix build error during make htmldocs

Amerigo Wang · sravnborg · commit b767b9059fa7 · 2009-06-20T13:31:28.000+02:00
Fix the following build error when do 'make htmldocs':

 DOCPROC Documentation/DocBook/debugobjects.xml
exec /scripts/kernel-doc: No such file or directory
exec /scripts/kernel-doc: No such file or directory

Reported-by: Randy Dunlap &lt;randy.dunlap@oracle.com&gt;
Signed-off-by: WANG Cong &lt;amwang@redhat.com&gt;
Acked-by: Randy Dunlap &lt;randy.dunlap@oracle.com&gt;
Signed-off-by: Sam Ravnborg &lt;sam@ravnborg.org&gt;
diff --git a/scripts/basic/docproc.c b/scripts/basic/docproc.c
@@ -385,7 +385,7 @@ int main(int argc, char *argv[])
 	if (!srctree)
 		srctree = getcwd(NULL, 0);
 	kernsrctree = getenv("KBUILD_SRC");
-	if (!kernsrctree)
+	if (!kernsrctree || !*kernsrctree)
 		kernsrctree = srctree;
 	if (argc != 3) {
 		usage();
