vendor/makefile: fix build error for parallel builds

diff --git a/vendor/ubuntu/makefile b/vendor/ubuntu/makefile
index ea67e6e6339ba0385917313bec2f9a0985601201..88061bde252c4ba7d2dd34473722288b15cd73b5 100644 (file)
--- a/vendor/ubuntu/makefile
+++ b/vendor/ubuntu/makefile
@@ -5,7 +5,7 @@ SUBDIR=vendor/ubuntu
 # Bring in the default rules
 include ../../buildlib/defaults.mak
 
-doc: sources.list
+doc binary: sources.list
 
 sources.list: sources.list.in ../../doc/apt-verbatim.ent
        sed -e 's#&ubuntu-codename;#$(shell ../getinfo ubuntu-codename)#g' $< > $@