- add help target

diff --git a/Makefile b/Makefile
index 38f1a6600a86c2a2543d1544e7bf8191e8f231cc..956818349e69cb0ba3d758e9d485b7678fefd50b 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -28,7 +28,7 @@ CONFIG = package/config
 
 noconfig_targets := menuconfig config oldconfig randconfig \
        defconfig allyesconfig allnoconfig release tags    \
-       source-check
+       source-check help
 
 #      $(shell find . -name *_defconfig |sed 's/.*\///')
 
@@ -342,8 +342,24 @@ endif # ifeq ($(strip $(BR2_HAVE_DOT_CONFIG)),y)
        cp $(shell find ./target/ -name $@) .config
        @$(CONFIG)/conf -o $(CONFIG_CONFIG_IN)
 
+help:
+       @echo 'Cleaning:'
+       @echo '  clean                  - delete temporary files created by build'
+       @echo '  distclean              - delete all non-source files (including .config)'
+       @echo
+       @echo 'Build:'
+       @echo '  all                    - make world'
+       @echo
+       @echo 'Configuration:'
+       @echo '  menuconfig             - interactive curses-based configurator'
+       @echo '  oldconfig              - resolve any unresolved symbols in .config'
+       @echo
+       @echo 'Miscellaneous:'
+       @echo '  source                 - download all sources needed for offline-build'
+       @echo '  source-check           - check all packages for valid download URLS'
+       @echo
 
 .PHONY: dummy subdirs release distclean clean config oldconfig \
-       menuconfig tags check test depend defconfig
+       menuconfig tags check test depend defconfig help