kbuild: Fix make help-<board series> on powerpc
make ARCH=powerpc help-<board series> should not require a cofigured
source tree. Also, sort the boards in the output.
Signed-off-by: Michal Marek <mmarek@suse.cz>
diff --git a/Makefile b/Makefile
index 107eb9e..b9fb496 100644
--- a/Makefile
+++ b/Makefile
@@ -483,7 +483,7 @@
old_version_h := include/linux/version.h
no-dot-config-targets := clean mrproper distclean \
- cscope gtags TAGS tags help %docs check% coccicheck \
+ cscope gtags TAGS tags help% %docs check% coccicheck \
$(version_h) headers_% archheaders archscripts \
kernelversion %src-pkg
@@ -1325,7 +1325,7 @@
help-boards: $(help-board-dirs)
-boards-per-dir = $(notdir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/$*/*_defconfig))
+boards-per-dir = $(sort $(notdir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/$*/*_defconfig)))
$(help-board-dirs): help-%:
@echo 'Architecture specific targets ($(SRCARCH) $*):'