[Buildroot] [PATCH 1/2] iproute2: fix no-thread build

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

Thomas, All,

On 2016-08-05 19:07 +0200, Thomas Petazzoni spake thusly:
> iproute2 believes that it needs to link with libpthread for its arpd
> binary, because "some db implementations require thread". Therefore, our
> iproute2.mk explicitly disables the build of arpd when thread support is
> not available.
> 
> However, the sed expression it uses no longer works. The Makefile used
> to look like:
> 
> TARGETS = foo baz baz arpd foobar
> 
> so replacing " arpd " with a space was working fine. However, the
> Makefile got changed in iproute2 to:
> 
> ifeq (... berkeleydb available ...)
>      TARGETS += arpd
> endif
> 
> i.e, with no space at the end of the line. This made our sed expression
> ineffective, causing build issues with no-thread configurations since
> arpd was no longer disabled.
> 
> To address this, instead of sed-ing the Makefile, we overwrite the
> berkeleydb detection of iproute2, by writing to the "Config" file, like
> we're doing for other aspects of the package.
> 
> Fixes:
> 
>   http://autobuild.buildroot.net/results/03a37a2372a4c2e438a073e015c49d9e554b86b7/
> 
> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

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

Regards,
Yann E. MORIN.

> ---
>  package/iproute2/iproute2.mk | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/package/iproute2/iproute2.mk b/package/iproute2/iproute2.mk
> index 91d5033..edc17ad 100644
> --- a/package/iproute2/iproute2.mk
> +++ b/package/iproute2/iproute2.mk
> @@ -42,7 +42,7 @@ ifeq ($(BR2_PACKAGE_BERKELEYDB_COMPAT185)$(BR2_TOOLCHAIN_HAS_THREADS),yy)
>  IPROUTE2_DEPENDENCIES += berkeleydb
>  else
>  define IPROUTE2_DISABLE_ARPD
> -	$(SED) "/^TARGETS=/s: arpd : :" $(IPROUTE2_DIR)/misc/Makefile
> +	echo "HAVE_BERKELEY_DB:=n" >> $(IPROUTE2_DIR)/Config
>  endef
>  endif
>  
> -- 
> 2.7.4
> 
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