[Buildroot] [PATCH v2] libiio: new package

[Paul Cercueil]

Hi Thomas,

Allright, thank you for your comments. I'll come with something better.

Regards,
Paul

On 21/09/2014 21:41, Thomas Petazzoni wrote:
> Dear Paul Cercueil,
>
> On Thu, 18 Sep 2014 11:44:27 +0200, Paul Cercueil wrote:
>> Libiio is a library to ease the development of software interfacing
>> Linux Industrial I/O (IIO) devices.
>>
>> http://wiki.analog.com/resources/tools-software/linux-software/libiio
>>
>> Signed-off-by: Paul Cercueil <paul.cercueil at analog.com>
>> ---
>>   package/Config.in        |  1 +
>>   package/libiio/Config.in | 42 ++++++++++++++++++++++++++
>>   package/libiio/libiio.mk | 76 ++++++++++++++++++++++++++++++++++++++++++++++++
>>   3 files changed, 119 insertions(+)
>>   create mode 100644 package/libiio/Config.in
>>   create mode 100644 package/libiio/libiio.mk
>
> Thanks. However, I tested your package, and it fails to build:
>
> make[1]: entrant dans le répertoire « /home/thomas/projets/buildroot/output/build/libiio-2014_R1/iiod »
> install --strip-program=/home/thomas/projets/buildroot/output/host/usr/bin/arm-linux-strip -D -s -m 0755 \
> 		iiod /home/thomas/projets/buildroot/output/target/usr/sbin/iiod
> install -m 0755 iiod.sh /home/thomas/projets/buildroot/output/target/etc/init.d/iiod.sh
> update-rc.d iiod.sh defaults 99 01
> update-rc.d: /etc/init.d/iiod.sh: file does not exist
> make[1]: *** [install] Erreur 1
>
> First, the Makefile should not be calling update-rc.d, and also the
> init script in /etc/init.d/ should not be named iiod.sh in Buildroot,
> but directly S<number><name>.
>
> Also, is the install command with stripping is not good for Buildroot:
> we want to control whether stripping happens or not.
>
>
>> +# Avahi support in libiio requires avahi-client,
>> +# which needs avahi-daemon and dbus
>> +ifeq ($(BR2_PACKAGE_AVAHI)$(BR2_PACKAGE_AVAHI_DAEMON)$(BR2_PACKAGE_DBUS),yyy)
>> +	LIBIIO_DEPENDENCIES += avahi
>> +else
>> +	LIBIIO_MAKE_OPTS += WITH_AVAHI=no
>> +endif
>> +
>> +ifneq ($(BR2_PACKAGE_LIBIIO_LOCAL_BACKEND),y)
>> +	LIBIIO_MAKE_OPTS += WITH_LOCAL_BACKEND=no
>> +endif
>> +
>> +ifeq ($(BR2_PACKAGE_LIBIIO_NETWORK_BACKEND),y)
>> +	LIBIIO_DEPENDENCIES += libxml2
>> +else
>> +	LIBIIO_MAKE_OPTS += WITH_NETWORK_BACKEND=no
>> +endif
>> +
>> +# Libiio can run without threads
>> +ifneq ($(BR2_TOOLCHAIN_HAS_THREADS),y)
>> +	LIBIIO_MAKE_OPTS += WITH_PTHREAD=no
>> +endif
>> +
>> +ifeq ($(BR2_PACKAGE_LIBIIO_IIOD),y)
>> +define LIBIIO_BUILD_IIOD
>> +	$(TARGET_MAKE_ENV) $(MAKE) -C $(@D)/iiod $(LIBIIO_MAKE_OPTS)
>> +endef
>> +define LIBIIO_INSTALL_IIOD
>> +	$(TARGET_MAKE_ENV) $(MAKE) -C $(@D)/iiod install \
>> +		$(LIBIIO_MAKE_OPTS) DESTDIR=$(TARGET_DIR)
>> +endef
>> +endif
>> +
>> +ifeq ($(BR2_PACKAGE_LIBIIO_TESTS),y)
>> +define LIBIIO_BUILD_TESTS
>> +	$(TARGET_MAKE_ENV) $(MAKE) -C $(@D)/tests $(LIBIIO_MAKE_OPTS)
>> +endef
>> +define LIBIIO_INSTALL_TESTS
>> +	$(TARGET_MAKE_ENV) $(MAKE) -C $(@D)/tests install \
>> +		$(LIBIIO_MAKE_OPTS) DESTDIR=$(TARGET_DIR)
>> +endef
>> +endif
>
> Now that I think of it, you could also do:
>
> ifeq ($(BR2_PACKAGE_LIBIIO_IIOD),y)
> LIBIIO_MAKE_DIRS += iiod
> endif
>
> ifeq ($(BR2_PACKAGE_LIBIIO_TESTS),y)
> LIBIIO_MAKE_DIRS += tests
> endif
>
>> +define LIBIIO_BUILD_CMDS
>> +	$(TARGET_MAKE_ENV) $(MAKE) -C $(@D) libiio $(LIBIIO_MAKE_OPTS)
>> +	$(LIBIIO_BUILD_IIOD)
>> +	$(LIBIIO_BUILD_TESTS)
>
> Replace those last two lines with:
>
> 	for d in $(LIBIIO_MAKE_DIRS); do \
> 		$(TARGET_MAKE_ENV) $(MAKE) -C $(@D)/$$d $(LIBIIO_MAKE_OPTS) || break ; \
> 	done
>
>> +define LIBIIO_INSTALL_STAGING_CMDS
>> +	$(TARGET_MAKE_ENV) $(MAKE) -C $(@D) install-sysroot \
>> +		$(LIBIIO_MAKE_OPTS) DESTDIR=$(STAGING_DIR)
>> +endef
>> +
>> +define LIBIIO_INSTALL_TARGET_CMDS
>> +	$(TARGET_MAKE_ENV) $(MAKE) -C $(@D) install-lib \
>> +		$(LIBIIO_MAKE_OPTS) DESTDIR=$(TARGET_DIR)
>> +	$(LIBIIO_INSTALL_IIOD)
>> +	$(LIBIIO_INSTALL_TESTS)
>
> And ditto here.
>
> Note that the Makefile of libiio could make this a little bit nicer by
> having a build and installation scheme that is easy to work with
> several make targets.
>
> Thanks!
>
> Thomas
>

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