On 12/07/2017 06:58 PM, Marc-André Lureau wrote:
> $ make print-CFLAGS
> CFLAGS=-fsanitize=address -Og -g
>
> Trick from various sources:
> https://stackoverflow.com/questions/16467718/how-to-print-out-a-variable-in-makefile
> https://www.cmcrossroads.com/article/printing-value-makefile-variable
>
> Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
> ---
> Makefile | 5 ++++-
> 1 file changed, 4 insertions(+), 1 deletion(-)
>
Slick!
Does it need to be documented anywhere that we have this useful
debugging aid in place?
Reviewed-by: Eric Blake <eblake@redhat.com>
> diff --git a/Makefile b/Makefile
> index ab0354c153..80683e8c8b 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -6,7 +6,10 @@ BUILD_DIR=$(CURDIR)
> # Before including a proper config-host.mak, assume we are in the source tree
> SRC_PATH=.
>
> -UNCHECKED_GOALS := %clean TAGS cscope ctags docker docker-% help
> +UNCHECKED_GOALS := %clean TAGS cscope ctags docker docker-% help print-%
> +
> +print-%:
> + @echo '$*=$($*)'
>
> # All following code might depend on configuration variables
> ifneq ($(wildcard config-host.mak),)
>
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3266
Virtualization: qemu.org | libvirt.org