[Buildroot] [PATCH 2/2] Makefile: test if "dot" exists in "<pkg>-graph-depends"

[Yann E. MORIN <yann.morin.1998@free.fr>]

Fabio, All,

On 2014-06-17 11:33 +0200, Fabio Porcedda spake thusly:
> To be able to check the "dot" command availability in
> "<pkg>-graph-depends" move the check to the "graph-depends-requirements" rule.
> Also don't use a subshell for the exit command to be sure that the error
> will be returned by the shell.
> 
> Signed-off-by: Fabio Porcedda <fabio.porcedda@gmail.com>
> Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
> Cc: Yann E. MORIN <yann.morin.1998@free.fr>

Tested-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>

Regards,
Yann E. MORIN.

> ---
> 
> Notes:
>     v2:
>      - Remove the check for graph-build (Yann and Thomas)
>      - Remove the previuous code for checking the "dot"
>        command avaiability (Yann)
>      - Don't use a subshell (Yann)
> 
>  Makefile               | 6 ++++--
>  package/pkg-generic.mk | 2 +-
>  2 files changed, 5 insertions(+), 3 deletions(-)
> 
> diff --git a/Makefile b/Makefile
> index 86acbbf..a27502b 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -669,9 +669,11 @@ graph-build: $(O)/build/build-time.log
>  				   --output=$(O)/graphs/build.pie-$(t).$(BR_GRAPH_OUT) \
>  				   $(if $(BR2_GRAPH_ALT),--alternate-colors)$(sep))
>  
> -graph-depends:
> +graph-depends-requirements:
>  	@dot -? >/dev/null 2>&1 || \
> -		(echo "ERROR: The 'dot' program from Graphviz is needed for graph-depends" >&2; exit 1)
> +		{ echo "ERROR: The 'dot' program from Graphviz is needed for graph-depends" >&2; exit 1; }
> +
> +graph-depends: graph-depends-requirements
>  	@$(INSTALL) -d $(O)/graphs
>  	@cd "$(CONFIG_DIR)"; \
>  	$(TOPDIR)/support/scripts/graph-depends $(BR2_GRAPH_DEPS_OPTS) \
> diff --git a/package/pkg-generic.mk b/package/pkg-generic.mk
> index 457d873..4a011cc 100644
> --- a/package/pkg-generic.mk
> +++ b/package/pkg-generic.mk
> @@ -556,7 +556,7 @@ endif
>  $(1)-show-depends:
>  			@echo $$($(2)_FINAL_DEPENDENCIES)
>  
> -$(1)-graph-depends:
> +$(1)-graph-depends: graph-depends-requirements
>  			@$$(INSTALL) -d $$(O)/graphs
>  			@cd "$$(CONFIG_DIR)"; \
>  			$$(TOPDIR)/support/scripts/graph-depends -p $(1) $$(BR2_GRAPH_DEPS_OPTS) \
> -- 
> 2.0.0
> 

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