[Buildroot] [PATCH v3] dieharder: new package

[Buildroot] [PATCH v3] dieharder: new package

[julien.viarddegalbert at openwide.fr]

From: Julien Viard de Galbert <julien@vdg.name>

Signed-off-by: Julien Viard de Galbert <julien@vdg.name>
---
Changes v2 -> v3
  - remove intermediate variable use (suggested by Baruch Siach)
Changes v1 -> v2
  - fixed typo "bin" instead of "big" (thanks Thomas Petazoni)
  - select gls in config (suggested by Romain Naour)
  - specified "includedir" to fix unsafe header path

Signed-off-by: Julien Viard de Galbert <julien@vdg.name>
---
 package/Config.in              |  1 +
 package/dieharder/Config.in    |  9 +++++++++
 package/dieharder/dieharder.mk | 26 ++++++++++++++++++++++++++
 3 files changed, 36 insertions(+)
 create mode 100644 package/dieharder/Config.in
 create mode 100644 package/dieharder/dieharder.mk

diff --git a/package/Config.in b/package/Config.in
index af4d2b7..cc0bd79 100644
--- a/package/Config.in
+++ b/package/Config.in
@@ -61,6 +61,7 @@ menu "Debugging, profiling and benchmark"
 	source "package/bonnie/Config.in"
 	source "package/cache-calibrator/Config.in"
 	source "package/dhrystone/Config.in"
+	source "package/dieharder/Config.in"
 	source "package/dmalloc/Config.in"
 	source "package/dropwatch/Config.in"
 	source "package/dstat/Config.in"
diff --git a/package/dieharder/Config.in b/package/dieharder/Config.in
new file mode 100644
index 0000000..9f81876
--- /dev/null
+++ b/package/dieharder/Config.in
@@ -0,0 +1,9 @@
+config BR2_PACKAGE_DIEHARDER
+	bool "dieharder"
+	select BR2_PACKAGE_GSL
+	help
+	  dieharder is a fairly involved random number/uniform deviate generator
+	  tester. It is thus suitable for use in testing both software RNG's and
+	  hardware RNG's.
+	  
+	  http://www.phy.duke.edu/~rgb/General/dieharder.php
diff --git a/package/dieharder/dieharder.mk b/package/dieharder/dieharder.mk
new file mode 100644
index 0000000..2a3d46b
--- /dev/null
+++ b/package/dieharder/dieharder.mk
@@ -0,0 +1,26 @@
+################################################################################
+#
+# dieharder
+#
+################################################################################
+
+DIEHARDER_VERSION = 3.31.1
+DIEHARDER_SITE = http://www.phy.duke.edu/~rgb/General/dieharder/
+DIEHARDER_SOURCE = dieharder-$(DIEHARDER_VERSION).tgz
+DIEHARDER_SUBDIR = dieharder-$(DIEHARDER_VERSION)
+DIEHARDER_LICENSE = GPLv2b
+DIEHARDER_LICENSE_FILES = $(DIEHARDER_SUBDIR)/COPYING
+DIEHARDER_DEPENDENCIES = gsl
+
+DIEHARDER_CONF_OPTS = --includedir=$(STAGING_DIR)/usr/include
+# fix endiannes detection
+ifeq ($(BR2_ENDIAN),"BIG")
+DIEHARDER_CONF_OPTS += ac_cv_c_endian=big
+else
+DIEHARDER_CONF_OPTS += ac_cv_c_endian=little
+endif
+
+# parallel build fail, disable it
+DIEHARDER_MAKE=$(MAKE1)
+
+$(eval $(autotools-package))
-- 
2.1.4

[Buildroot] [PATCH v3] dieharder: new package

[Thomas Petazzoni]

Hello Julien,

On Sun, 17 May 2015 09:43:23 +0200, julien.viarddegalbert at openwide.fr
wrote:

> diff --git a/package/Config.in b/package/Config.in
> index af4d2b7..cc0bd79 100644
> --- a/package/Config.in
> +++ b/package/Config.in
> @@ -61,6 +61,7 @@ menu "Debugging, profiling and benchmark"
>  	source "package/bonnie/Config.in"
>  	source "package/cache-calibrator/Config.in"
>  	source "package/dhrystone/Config.in"
> +	source "package/dieharder/Config.in"
>  	source "package/dmalloc/Config.in"
>  	source "package/dropwatch/Config.in"
>  	source "package/dstat/Config.in"
> diff --git a/package/dieharder/Config.in b/package/dieharder/Config.in
> new file mode 100644
> index 0000000..9f81876
> --- /dev/null
> +++ b/package/dieharder/Config.in
> @@ -0,0 +1,9 @@
> +config BR2_PACKAGE_DIEHARDER
> +	bool "dieharder"
> +	select BR2_PACKAGE_GSL
> +	help
> +	  dieharder is a fairly involved random number/uniform deviate generator
> +	  tester. It is thus suitable for use in testing both software RNG's and
> +	  hardware RNG's.

Those help lines look fairly too long. Make sure they're not longer
than 72 columns.

> diff --git a/package/dieharder/dieharder.mk b/package/dieharder/dieharder.mk
> new file mode 100644
> index 0000000..2a3d46b
> --- /dev/null
> +++ b/package/dieharder/dieharder.mk
> @@ -0,0 +1,26 @@
> +################################################################################
> +#
> +# dieharder
> +#
> +################################################################################
> +
> +DIEHARDER_VERSION = 3.31.1
> +DIEHARDER_SITE = http://www.phy.duke.edu/~rgb/General/dieharder/
> +DIEHARDER_SOURCE = dieharder-$(DIEHARDER_VERSION).tgz
> +DIEHARDER_SUBDIR = dieharder-$(DIEHARDER_VERSION)
> +DIEHARDER_LICENSE = GPLv2b

What is GPLv2b ? We normally have GPLv2 or GPLv2+.

> +DIEHARDER_LICENSE_FILES = $(DIEHARDER_SUBDIR)/COPYING
> +DIEHARDER_DEPENDENCIES = gsl
> +
> +DIEHARDER_CONF_OPTS = --includedir=$(STAGING_DIR)/usr/include

Why do you need this? This looks wrong, as it would install the
headers in a completely wrong location, if dieharder would be
installing headers. --includedir is not used to specify where a program
should look for headers of libraries, but to tell where it should
install its own headers.

> +# fix endiannes detection
> +ifeq ($(BR2_ENDIAN),"BIG")
> +DIEHARDER_CONF_OPTS += ac_cv_c_endian=big
> +else
> +DIEHARDER_CONF_OPTS += ac_cv_c_endian=little
> +endif

We generally pass such values in <pkg>_CONF_ENV instead.

> +
> +# parallel build fail, disable it
> +DIEHARDER_MAKE=$(MAKE1)

Spaces around = sign please.

Thanks!

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com

[Buildroot] [PATCH v3] dieharder: new package

[Julien Viard de Galbert]

On Sun, May 17, 2015 at 10:20:36AM +0200, Thomas Petazzoni wrote:
> Hello Julien,
> 
> On Sun, 17 May 2015 09:43:23 +0200, julien.viarddegalbert at openwide.fr
> wrote:
> 
> > diff --git a/package/Config.in b/package/Config.in
> > index af4d2b7..cc0bd79 100644
> > --- a/package/Config.in
> > +++ b/package/Config.in
> > @@ -61,6 +61,7 @@ menu "Debugging, profiling and benchmark"
> >  	source "package/bonnie/Config.in"
> >  	source "package/cache-calibrator/Config.in"
> >  	source "package/dhrystone/Config.in"
> > +	source "package/dieharder/Config.in"
> >  	source "package/dmalloc/Config.in"
> >  	source "package/dropwatch/Config.in"
> >  	source "package/dstat/Config.in"
> > diff --git a/package/dieharder/Config.in b/package/dieharder/Config.in
> > new file mode 100644
> > index 0000000..9f81876
> > --- /dev/null
> > +++ b/package/dieharder/Config.in
> > @@ -0,0 +1,9 @@
> > +config BR2_PACKAGE_DIEHARDER
> > +	bool "dieharder"
> > +	select BR2_PACKAGE_GSL
> > +	help
> > +	  dieharder is a fairly involved random number/uniform deviate generator
> > +	  tester. It is thus suitable for use in testing both software RNG's and
> > +	  hardware RNG's.
> 
> Those help lines look fairly too long. Make sure they're not longer
> than 72 columns.
> 
Ok, also I just sent another patch to document that point.

> > diff --git a/package/dieharder/dieharder.mk b/package/dieharder/dieharder.mk
> > new file mode 100644
> > index 0000000..2a3d46b
> > --- /dev/null
> > +++ b/package/dieharder/dieharder.mk
> > @@ -0,0 +1,26 @@
> > +################################################################################
> > +#
> > +# dieharder
> > +#
> > +################################################################################
> > +
> > +DIEHARDER_VERSION = 3.31.1
> > +DIEHARDER_SITE = http://www.phy.duke.edu/~rgb/General/dieharder/
> > +DIEHARDER_SOURCE = dieharder-$(DIEHARDER_VERSION).tgz
> > +DIEHARDER_SUBDIR = dieharder-$(DIEHARDER_VERSION)
> > +DIEHARDER_LICENSE = GPLv2b
> 
> What is GPLv2b ? We normally have GPLv2 or GPLv2+.
> 
You are right this should be made more explicit, there is an
extra "beverage" clause in the licence file.
I could either use the syntax the software uses:
DIEHARDER_LICENSE = GPLv2b (b for beverage)

Or make it simply:
DIEHARDER_LICENSE = GPLv2 with beverage clause

What do you think ?

> > +DIEHARDER_LICENSE_FILES = $(DIEHARDER_SUBDIR)/COPYING
> > +DIEHARDER_DEPENDENCIES = gsl
> > +
> > +DIEHARDER_CONF_OPTS = --includedir=$(STAGING_DIR)/usr/include
> 
> Why do you need this? This looks wrong, as it would install the
> headers in a completely wrong location, if dieharder would be
> installing headers. --includedir is not used to specify where a program
> should look for headers of libraries, but to tell where it should
> install its own headers.
> 
That was to try to fix the build using "/usr/include/" but it's wrong.
I overlooked the normal --includedir function. So I guess the upstream
scripts are wrong as they use the --includedir value to also specify
some include search path...

Also it _really_ do install some headers there. We probably don't want
those on the target rootfs. So I guess I need to find how to tell it not
to do that...

> > +# fix endiannes detection
> > +ifeq ($(BR2_ENDIAN),"BIG")
> > +DIEHARDER_CONF_OPTS += ac_cv_c_endian=big
> > +else
> > +DIEHARDER_CONF_OPTS += ac_cv_c_endian=little
> > +endif
> 
> We generally pass such values in <pkg>_CONF_ENV instead.
> 
OK, I'll do that.

> > +
> > +# parallel build fail, disable it
> > +DIEHARDER_MAKE=$(MAKE1)
> 
> Spaces around = sign please.
OK, sorry, I read about that one... my mistake.
> 
> Thanks!
> 
> Thomas
> -- 
> Thomas Petazzoni, CTO, Free Electrons
> Embedded Linux, Kernel and Android engineering
> http://free-electrons.com

-- 
Julien Viard de Galbert

[Buildroot] [PATCH v3] dieharder: new package

[Thomas Petazzoni]

Dear Julien Viard de Galbert,

On Sun, 17 May 2015 14:18:15 +0200, Julien Viard de Galbert wrote:

> > Those help lines look fairly too long. Make sure they're not longer
> > than 72 columns.
> > 
> Ok, also I just sent another patch to document that point.

Sure, good idea.

> You are right this should be made more explicit, there is an
> extra "beverage" clause in the licence file.
> I could either use the syntax the software uses:
> DIEHARDER_LICENSE = GPLv2b (b for beverage)
> 
> Or make it simply:
> DIEHARDER_LICENSE = GPLv2 with beverage clause
> 
> What do you think ?

The second solution you propose looks better to me.

> > > +DIEHARDER_LICENSE_FILES = $(DIEHARDER_SUBDIR)/COPYING
> > > +DIEHARDER_DEPENDENCIES = gsl
> > > +
> > > +DIEHARDER_CONF_OPTS = --includedir=$(STAGING_DIR)/usr/include
> > 
> > Why do you need this? This looks wrong, as it would install the
> > headers in a completely wrong location, if dieharder would be
> > installing headers. --includedir is not used to specify where a program
> > should look for headers of libraries, but to tell where it should
> > install its own headers.
> > 
> That was to try to fix the build using "/usr/include/" but it's wrong.
> I overlooked the normal --includedir function. So I guess the upstream
> scripts are wrong as they use the --includedir value to also specify
> some include search path...
> 
> Also it _really_ do install some headers there. We probably don't want
> those on the target rootfs. So I guess I need to find how to tell it not
> to do that...

As long as headers are installed in $(TARGET_DIR)/usr/include, you
shouldn't do anything: Buildroot automatically deletes this directory
at the end of the build process.

Thanks,

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com

[Buildroot] [PATCH v3] dieharder: new package

[Romain Naour]

Hi Julien,

Le 17/05/2015 09:43, julien.viarddegalbert at openwide.fr a ?crit :
> From: Julien Viard de Galbert <julien@vdg.name>
> 
> Signed-off-by: Julien Viard de Galbert <julien@vdg.name>
> ---
> Changes v2 -> v3
>   - remove intermediate variable use (suggested by Baruch Siach)
> Changes v1 -> v2
>   - fixed typo "bin" instead of "big" (thanks Thomas Petazoni)
>   - select gls in config (suggested by Romain Naour)
>   - specified "includedir" to fix unsafe header path
> 
> Signed-off-by: Julien Viard de Galbert <julien@vdg.name>
> ---
>  package/Config.in              |  1 +
>  package/dieharder/Config.in    |  9 +++++++++
>  package/dieharder/dieharder.mk | 26 ++++++++++++++++++++++++++
>  3 files changed, 36 insertions(+)
>  create mode 100644 package/dieharder/Config.in
>  create mode 100644 package/dieharder/dieharder.mk
> 
> diff --git a/package/Config.in b/package/Config.in
> index af4d2b7..cc0bd79 100644
> --- a/package/Config.in
> +++ b/package/Config.in
> @@ -61,6 +61,7 @@ menu "Debugging, profiling and benchmark"
>  	source "package/bonnie/Config.in"
>  	source "package/cache-calibrator/Config.in"
>  	source "package/dhrystone/Config.in"
> +	source "package/dieharder/Config.in"
>  	source "package/dmalloc/Config.in"
>  	source "package/dropwatch/Config.in"
>  	source "package/dstat/Config.in"
> diff --git a/package/dieharder/Config.in b/package/dieharder/Config.in
> new file mode 100644
> index 0000000..9f81876
> --- /dev/null
> +++ b/package/dieharder/Config.in
> @@ -0,0 +1,9 @@
> +config BR2_PACKAGE_DIEHARDER
> +	bool "dieharder"
> +	select BR2_PACKAGE_GSL
> +	help
> +	  dieharder is a fairly involved random number/uniform deviate generator
> +	  tester. It is thus suitable for use in testing both software RNG's and
> +	  hardware RNG's.
> +	  
> +	  http://www.phy.duke.edu/~rgb/General/dieharder.php
> diff --git a/package/dieharder/dieharder.mk b/package/dieharder/dieharder.mk
> new file mode 100644
> index 0000000..2a3d46b
> --- /dev/null
> +++ b/package/dieharder/dieharder.mk
> @@ -0,0 +1,26 @@
> +################################################################################
> +#
> +# dieharder
> +#
> +################################################################################
> +
> +DIEHARDER_VERSION = 3.31.1
> +DIEHARDER_SITE = http://www.phy.duke.edu/~rgb/General/dieharder/
> +DIEHARDER_SOURCE = dieharder-$(DIEHARDER_VERSION).tgz
> +DIEHARDER_SUBDIR = dieharder-$(DIEHARDER_VERSION)
> +DIEHARDER_LICENSE = GPLv2b
> +DIEHARDER_LICENSE_FILES = $(DIEHARDER_SUBDIR)/COPYING
> +DIEHARDER_DEPENDENCIES = gsl
> +
> +DIEHARDER_CONF_OPTS = --includedir=$(STAGING_DIR)/usr/include
> +# fix endiannes detection
> +ifeq ($(BR2_ENDIAN),"BIG")
> +DIEHARDER_CONF_OPTS += ac_cv_c_endian=big
> +else
> +DIEHARDER_CONF_OPTS += ac_cv_c_endian=little
> +endif

There is a build issue with musl libc due to missing M_PI when _GNU_SOURCE is
not defined.

I suggest you add it in CFLAGS by using DIEHARDER_MAKE_OPTS:

DIEHARDER_MAKE_OPTS = CFLAGS="$(TARGET_CFLAGS) -D_GNU_SOURCE"

Don't forget to take into account Thomas's comment for the next version ;-)

Best regards,
Romain

> +
> +# parallel build fail, disable it
> +DIEHARDER_MAKE=$(MAKE1)
> +
> +$(eval $(autotools-package))
> 

[Buildroot] [PATCH v3] dieharder: new package

[Yann E. MORIN]

Julien, Romain, All,

On 2015-07-11 01:10 +0200, Romain Naour spake thusly:
> Le 17/05/2015 09:43, julien.viarddegalbert at openwide.fr a ?crit :
> > From: Julien Viard de Galbert <julien@vdg.name>
> > 
> > Signed-off-by: Julien Viard de Galbert <julien@vdg.name>
[--SNIP--]
> > diff --git a/package/dieharder/dieharder.mk b/package/dieharder/dieharder.mk
> > new file mode 100644
> > index 0000000..2a3d46b
> > --- /dev/null
> > +++ b/package/dieharder/dieharder.mk
> > @@ -0,0 +1,26 @@
> > +################################################################################
> > +#
> > +# dieharder
> > +#
> > +################################################################################
> > +
> > +DIEHARDER_VERSION = 3.31.1
> > +DIEHARDER_SITE = http://www.phy.duke.edu/~rgb/General/dieharder/
> > +DIEHARDER_SOURCE = dieharder-$(DIEHARDER_VERSION).tgz
> > +DIEHARDER_SUBDIR = dieharder-$(DIEHARDER_VERSION)
> > +DIEHARDER_LICENSE = GPLv2b
> > +DIEHARDER_LICENSE_FILES = $(DIEHARDER_SUBDIR)/COPYING
> > +DIEHARDER_DEPENDENCIES = gsl
> > +
> > +DIEHARDER_CONF_OPTS = --includedir=$(STAGING_DIR)/usr/include
> > +# fix endiannes detection
> > +ifeq ($(BR2_ENDIAN),"BIG")
> > +DIEHARDER_CONF_OPTS += ac_cv_c_endian=big
> > +else
> > +DIEHARDER_CONF_OPTS += ac_cv_c_endian=little
> > +endif
> 
> There is a build issue with musl libc due to missing M_PI when _GNU_SOURCE is
> not defined.
> 
> I suggest you add it in CFLAGS by using DIEHARDER_MAKE_OPTS:
> 
> DIEHARDER_MAKE_OPTS = CFLAGS="$(TARGET_CFLAGS) -D_GNU_SOURCE"

Better yet: patch dieharder to define it in the source, and submit that
patch upstream.

Regards,
Yann E. MORIN.

> Don't forget to take into account Thomas's comment for the next version ;-)
> 
> Best regards,
> Romain
> 
> > +
> > +# parallel build fail, disable it
> > +DIEHARDER_MAKE=$(MAKE1)
> > +
> > +$(eval $(autotools-package))
> > 
> 
> _______________________________________________
> buildroot mailing list
> buildroot at busybox.net
> http://lists.busybox.net/mailman/listinfo/buildroot

-- 
.-----------------.--------------------.------------------.--------------------.
|  Yann E. MORIN  | Real-Time Embedded | /"\ ASCII RIBBON | Erics' conspiracy: |
| +33 662 376 056 | Software  Designer | \ / CAMPAIGN     |  ___               |
| +33 223 225 172 `------------.-------:  X  AGAINST      |  \e/  There is no  |
| http://ymorin.is-a-geek.org/ | _/*\_ | / \ HTML MAIL    |   v   conspiracy.  |
'------------------------------^-------^------------------^--------------------'

[Buildroot] [PATCH v3] dieharder: new package

[Julien Viard de Galbert]

Hello All,

I've been moving and still need to wait to get internet access at
the new home, so this will take some time, but yes, I think it's
better to upstream patches than work on our side.

Also I'm not sure how soon I'll be able to work on this, I will
keep all your emails and review them all at that time.

Best regards,

Julien
----- Mail original -----
> De: "Yann E. MORIN" <yann.morin.1998@free.fr>
> ?: "Romain Naour" <romain.naour@openwide.fr>
> Cc: "Julien Viard de Galbert" <julien@vdg.name>, buildroot at buildroot.org, "julien viarddegalbert"
> <julien.viarddegalbert@openwide.fr>
> Envoy?: Samedi 11 Juillet 2015 09:43:44
> Objet: Re: [Buildroot] [PATCH v3] dieharder: new package
> 
> Julien, Romain, All,
> 
> On 2015-07-11 01:10 +0200, Romain Naour spake thusly:
> > Le 17/05/2015 09:43, julien.viarddegalbert at openwide.fr a ?crit :
> > > From: Julien Viard de Galbert <julien@vdg.name>
> > > 
> > > Signed-off-by: Julien Viard de Galbert <julien@vdg.name>
> [--SNIP--]
> > > diff --git a/package/dieharder/dieharder.mk
> > > b/package/dieharder/dieharder.mk
> > > new file mode 100644
> > > index 0000000..2a3d46b
> > > --- /dev/null
> > > +++ b/package/dieharder/dieharder.mk
> > > @@ -0,0 +1,26 @@
> > > +################################################################################
> > > +#
> > > +# dieharder
> > > +#
> > > +################################################################################
> > > +
> > > +DIEHARDER_VERSION = 3.31.1
> > > +DIEHARDER_SITE = http://www.phy.duke.edu/~rgb/General/dieharder/
> > > +DIEHARDER_SOURCE = dieharder-$(DIEHARDER_VERSION).tgz
> > > +DIEHARDER_SUBDIR = dieharder-$(DIEHARDER_VERSION)
> > > +DIEHARDER_LICENSE = GPLv2b
> > > +DIEHARDER_LICENSE_FILES = $(DIEHARDER_SUBDIR)/COPYING
> > > +DIEHARDER_DEPENDENCIES = gsl
> > > +
> > > +DIEHARDER_CONF_OPTS = --includedir=$(STAGING_DIR)/usr/include
> > > +# fix endiannes detection
> > > +ifeq ($(BR2_ENDIAN),"BIG")
> > > +DIEHARDER_CONF_OPTS += ac_cv_c_endian=big
> > > +else
> > > +DIEHARDER_CONF_OPTS += ac_cv_c_endian=little
> > > +endif
> > 
> > There is a build issue with musl libc due to missing M_PI when
> > _GNU_SOURCE is
> > not defined.
> > 
> > I suggest you add it in CFLAGS by using DIEHARDER_MAKE_OPTS:
> > 
> > DIEHARDER_MAKE_OPTS = CFLAGS="$(TARGET_CFLAGS) -D_GNU_SOURCE"
> 
> Better yet: patch dieharder to define it in the source, and submit
> that
> patch upstream.
> 
> Regards,
> Yann E. MORIN.
> 
> > Don't forget to take into account Thomas's comment for the next
> > version ;-)
> > 
> > Best regards,
> > Romain
> > 
> > > +
> > > +# parallel build fail, disable it
> > > +DIEHARDER_MAKE=$(MAKE1)
> > > +
> > > +$(eval $(autotools-package))
> > > 
> > 
> > _______________________________________________
> > buildroot mailing list
> > buildroot at busybox.net
> > http://lists.busybox.net/mailman/listinfo/buildroot
> 
> --
> .-----------------.--------------------.------------------.--------------------.
> |  Yann E. MORIN  | Real-Time Embedded | /"\ ASCII RIBBON | Erics'
> |  conspiracy: |
> | +33 662 376 056 | Software  Designer | \ / CAMPAIGN     |  ___
> |               |
> | +33 223 225 172 `------------.-------:  X  AGAINST      |  \e/
> |  There is no  |
> | http://ymorin.is-a-geek.org/ | _/*\_ | / \ HTML MAIL    |   v
> |   conspiracy.  |
> '------------------------------^-------^------------------^--------------------'
> _______________________________________________
> buildroot mailing list
> buildroot at busybox.net
> http://lists.busybox.net/mailman/listinfo/buildroot

-- 
Julien Viard de Galbert       // `` OPEN WIDE    23-25 Rue Daviel
Responsable des op?rations    \\//  Ing?nierie   75013 Paris - France
julien.viarddegalbert at openwide.fr                +33 (0)1 42 68 28 11
Open Wide Ing?nierie                           ingenierie.openwide.fr
Open Wide vid?o avanc?es                 video.ingenierie.openwide.fr
Blog des technologies libres et embarqu?es       www.linuxembedded.fr