[Qemu-devel] [RFC PATCH] build-sys: add make 'help' target

[marcandre.lureau@redhat.com]

From: Marc-André Lureau <marcandre.lureau@redhat.com>

Add a make 'help', to print a summary of the main Makefile targets.
The format is loosely inspired by Linux make 'help' output.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
---
 Makefile | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/Makefile b/Makefile
index 53e4119..c6bf3d6 100644
--- a/Makefile
+++ b/Makefile
@@ -666,3 +666,36 @@ endif
 -include $(wildcard *.d tests/*.d)
 
 include $(SRC_PATH)/tests/docker/Makefile.include
+
+.PHONY: help
+help:
+
+	@echo  'Cleaning targets:'
+	@echo  '  clean           - Remove most generated files but keep the config'
+	@echo  '  distclean       - Remove all generated files'
+	@echo  '  dist            - Build a distributable tarball'
+	@echo  ''
+	@echo  'Test targets:'
+	@echo  '  check           - Run all tests (check-help for details)'
+	@echo  '  docker          - Build QEMU and run tests inside Docker containers'
+	@echo  '  test/speed      - Run TCG tests'
+	@echo  ''
+	@echo  'Documentation targets:'
+	@echo  '  dvi/html/'
+	@echo  '  info/pdf        - Build documentation in specified format'
+	@echo  ''
+	@echo  'Other generic targets:'
+	@echo  '  all             - Build all'
+	@echo  '  install         - Install QEMU, documentation and tools'
+	@echo  '  ctags/TAGS      - Generate tags file for editors'
+	@echo  '  cscope          - Generate cscope index'
+ifdef CONFIG_WIN32
+	@echo  ''
+	@echo  'Windows targets:'
+	@echo  '  installer       - Build NSIS-based installer'
+ifdef QEMU_GA_MSI_ENABLED
+	@echo  '  msi             - Build MSI-based installer'
+endif
+endif
+	@echo  ''
+	@echo  '  make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
-- 
2.7.4