[CRIU] [PATCH] Doc/Makefile: error out if req tools absent

[Pavel Emelyanov]

On 01/20/2014 12:31 AM, Kir Kolyshkin wrote:
> Make sure we have a clear message why build it failing, as there are
> repeated questions at criu@ mailing list.
> 
> Before this patch:
> 
> 	[kir at kirpad Documentation]$ make
> 	  GEN      criu.8
> 	make: *** [criu.8] Error 127
> 
> After:
> 
> 	[kir at kirpad Documentation]$ make
> 	/bin/sh: line 1: xmltos: command not found
> 	make: *** [check] Error 1
> 
> Signed-off-by: Kir Kolyshkin <kir at openvz.org>
> ---
>  Documentation/Makefile | 8 +++++++-
>  1 file changed, 7 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/Makefile b/Documentation/Makefile
> index 0a1edac..7f0fe09 100644
> --- a/Documentation/Makefile
> +++ b/Documentation/Makefile
> @@ -8,7 +8,13 @@ SRC		+= criu.txt
>  MANS		:= $(patsubst %.txt,%.8,$(SRC))
>  MAN8DIR		:= $(MANDIR)/man8
>  
> -all: $(MANS)
> +all: check $(MANS)
> +
> +check:
> +	$(Q) for B in $(ASCIIDOC) $(A2X) $(XMLTO); do \
> +		$$B --version > /dev/null || exit 1; \
> +	done
> +.PHONY: check

Patch doesn't apply. It conflicts with 19ea709e (Doc/Makefile: add ps
and pdf generation)

>  %.8: %.txt
>  	$(E) "  GEN     " $@
>