This '+' was added a long time ago: |commit c23e6bf05f7802e92fd3da69a1ed35e56f9c85bb (HEAD) |Author: Kai Germaschewski <kai@xxxxxxxxxxxxxxxxxxxxxx> |Date: Mon Oct 28 01:16:34 2002 -0600 | | kbuild: Fix a "make -j<N>" warning | |diff --git a/scripts/Makefile.clean b/scripts/Makefile.clean |index 2c843e0380bc..e7c392fd5788 100644 |--- a/scripts/Makefile.clean |+++ b/scripts/Makefile.clean |@@ -42,7 +42,7 @@ quiet_cmd_clean = CLEAN $(obj) | | __clean: $(subdir-ymn) | ifneq ($(strip $(__clean-files) $(clean-rule)),) |- $(call cmd,clean) |+ +$(call cmd,clean) | else | @: | endif At that time, cmd_clean contained '$(clean-rule)', which was able to invoke sub-make. That was why "make -j<N> clean" showed: warning: jobserver unavailable: using -j1. Add '+' to parent make rule. It is not the case any more. cmd_clean now just runs the 'rm' command. The '+' marker is pointless. Signed-off-by: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx> --- scripts/Makefile.clean | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/scripts/Makefile.clean b/scripts/Makefile.clean index 798e8717c1d9..29281a20cf8e 100644 --- a/scripts/Makefile.clean +++ b/scripts/Makefile.clean @@ -59,7 +59,7 @@ quiet_cmd_clean = CLEAN $(obj) __clean: $(subdir-ymn) ifneq ($(strip $(__clean-files)),) - +$(call cmd,clean) + $(call cmd,clean) endif @: -- 2.17.1
