[Buildroot] [PATCH] erlang: add option to enable SMP support

Baruch Siach baruch at tkos.co.il
Thu Dec 12 14:45:19 UTC 2013


Hi Frank,

On Thu, Dec 12, 2013 at 09:01:42AM -0500, Frank Hunleth wrote:
> Erlang builds two emulators depending on whether SMP is supported or
> not. If it is known that the target does not support SMP, turning off
> the SMP emulator saves compile time and reduces the size of the
> installation.

Missing sign-off.

Is there an option on only build (or at least install) the SMP version?

baruch

> ---
>  package/erlang/Config.in | 10 ++++++++++
>  package/erlang/erlang.mk |  4 ++++
>  2 files changed, 14 insertions(+)
> 
> diff --git a/package/erlang/Config.in b/package/erlang/Config.in
> index 27206f3..9edb90b 100644
> --- a/package/erlang/Config.in
> +++ b/package/erlang/Config.in
> @@ -10,6 +10,16 @@ config BR2_PACKAGE_ERLANG
>  
>  	  http://www.erlang.org
>  
> +config BR2_PACKAGE_ERLANG_SMP
> +	bool "enable SMP support"
> +	depends on BR2_PACKAGE_ERLANG
> +	help
> +	  Erlang provides both a UP and an SMP emulator. The UP emulator
> +	  is always built, and this option enables compilation of the SMP
> +	  emulator. The choice of which emulator to use is made at runtime.
> +	  If you do not need SMP support, turning this option off reduces
> +	  compile time and the size of the Erlang installation.
> +
>  config BR2_PACKAGE_ERLANG_MEGACO
>  	bool "install megaco application"
>  	depends on BR2_PACKAGE_ERLANG
> diff --git a/package/erlang/erlang.mk b/package/erlang/erlang.mk
> index 32d18e4..67010a2 100644
> --- a/package/erlang/erlang.mk
> +++ b/package/erlang/erlang.mk
> @@ -43,6 +43,10 @@ ERLANG_CONF_OPT += --enable-shared-zlib
>  ERLANG_DEPENDENCIES += zlib
>  endif
>  
> +ifneq ($(BR2_PACKAGE_ERLANG_SMP),y)
> +ERLANG_CONF_OPT += --disable-smp-support
> +endif
> +
>  # Remove source, example, gs and wx files from the target
>  ERLANG_REMOVE_PACKAGES = gs wx

-- 
     http://baruch.siach.name/blog/                  ~. .~   Tk Open Systems
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   - baruch at tkos.co.il - tel: +972.2.679.5364, http://www.tkos.co.il -



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