build-sys: make help could have 'modules' target

Available when configure --enable-modules.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20180306161728.20890-1-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/Makefile b/Makefile
index 9a75c48ae050ee26af9dd014ca8b95d04261b032..5d9ef3b8fd58e432d9ae0dd6225bf9abc0b66821 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -1046,6 +1046,9 @@ include $(SRC_PATH)/tests/vm/Makefile.include
 help:
        @echo  'Generic targets:'
        @echo  '  all             - Build all'
+ifdef CONFIG_MODULES
+       @echo  '  modules         - Build all modules'
+endif
        @echo  '  dir/file.o      - Build specified target only'
        @echo  '  install         - Install QEMU, documentation and tools'
        @echo  '  ctags/TAGS      - Generate tags file for editors'