[Buildroot] [PATCH 1/2] pkg-perl: fix for Perl XS packages configured by a Makefile.PL

[Arnout Vandecappelle <arnout@mind.be>]

 Hi Francois,

On 20/04/14 17:05, Francois Perrad wrote:
> for native package, ExtUtils::MakeMaker detects all include filenames on system perl,
> all these includes will be required by the generated Makefile but on STAGING_DIR.
> 
> patchlevel-debian.h is not a part of the Perl distribution,
> but it was added by some Linux distributions (Debian, Ubuntu, ...)
> In this case, we create an empty file on STAGING_DIR.

 Contrary to Thomas, I do understand the explanation, so here's a
hopefully improved one:

ExtUtils::MakeMaker adds all the header files used by the perl as
dependencies to the generated Makefile. This means that the generated
Makefile will depend on the system's header files.

Usually this is not a problem, because when building the target package,
these header files will indeed be found in $(STAGING_DIR). However, some
distro's add an extra header file to the system's perl. This header is
also included in the generated Makefile, which makes the build fail
because it doesn't exist in $(STAGING_DIR).

As a work-around, explicitly create this header file in $(STAGING_DIR).
It doesn't hurt to create it even if the system perl doesn't need it.

> 
> Signed-off-by: Francois Perrad <francois.perrad@gadz.org>
> ---
>  package/pkg-perl.mk | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/package/pkg-perl.mk b/package/pkg-perl.mk
> index 447f364..876ffdb 100644
> --- a/package/pkg-perl.mk
> +++ b/package/pkg-perl.mk
> @@ -88,6 +88,7 @@ define $(2)_CONFIGURE_CMDS
>  			INSTALLVENDORMAN1DIR=/usr/share/man/man1 \
>  			INSTALLVENDORMAN3DIR=/usr/share/man/man3 \
>  			$$($(2)_CONF_OPT); \
> +		touch $(STAGING_DIR)/usr/lib/perl5/$$(PERL_VERSION)/$(PERL_ARCHNAME)/CORE/patchlevel-debian.h; \

 Wouldn't it be better to do this in a post-install-staging hook in perl
itself? Now, this file will be touched over and over again for each perl
package.


 Also, you probably should repeat the commit log's explanation here.

 Regards,
 Arnout

>  	fi
>  endef
>  else
> 


-- 
Arnout Vandecappelle                          arnout at mind be
Senior Embedded Software Architect            +32-16-286500
Essensium/Mind                                http://www.mind.be
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