[PATCH] doc/publican/Makefile.am: Add a missing order-only prerequisite

[Jon A. Cruz]

On 01/06/2015 08:35 AM, Rui Matos wrote:
> Otherwise a parallel make invocation could fail due to the directory
> not existing.
> 
> Signed-off-by: Rui Matos <tiagomatos at gmail.com>

Looks good.

Reviewed-by: Jon A. Cruz <jonc at osg.samsung.com>

> ---
>  doc/publican/Makefile.am | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/doc/publican/Makefile.am b/doc/publican/Makefile.am
> index 278da12..50a6188 100644
> --- a/doc/publican/Makefile.am
> +++ b/doc/publican/Makefile.am
> @@ -85,7 +85,7 @@ $(builddir)/en-US/ProtocolSpec.xml: $(top_srcdir)/protocol/wayland.xml $(srcdir)
>  	$(AM_V_GEN)$(XSLTPROC) $(srcdir)/protocol-to-docbook.xsl \
>  		$(top_srcdir)/protocol/wayland.xml > $@
>  
> -$(builddir)/en-US/ProtocolInterfaces.xml: $(top_srcdir)/protocol/wayland.xml $(srcdir)/protocol-interfaces-to-docbook.xsl
> +$(builddir)/en-US/ProtocolInterfaces.xml: $(top_srcdir)/protocol/wayland.xml $(srcdir)/protocol-interfaces-to-docbook.xsl | $(builddir)/en-US
>  	$(AM_V_GEN)$(XSLTPROC) $(srcdir)/protocol-interfaces-to-docbook.xsl \
>  		$(top_srcdir)/protocol/wayland.xml > $@
>  
>