[meta-freescale] Native package building

[Otavio Salvador]

On Tue, Nov 12, 2013 at 12:38 PM, Alberto Liberal de los Rios
<aliberal at arroweurope.com> wrote:
> Maybe someone of you can help me with one question (I have searched a lot of
> info, but nothing that clarifies it to me). I am compiling zlib 1.2.7 with
> the next recipe:
>
>
>
> SUMMARY = "Zlib Compression Library"
>
> DESCRIPTION = "Zlib is a general-purpose, patent-free, lossless data
> compression \ library which is used by many different programs."
>
> HOMEPAGE = "http://zlib.net/"
>
> SECTION = "libs"
>
> LICENSE = "Zlib"
>
> LIC_FILES_CHKSUM =
> "file://zlib.h;beginline=4;endline=23;md5=94d1b5a40dadd127f3351471727e66a9"
>
>
>
> SRC_URI = "http://www.zlib.net/${BPN}-${PV}.tar.bz2 \
>
>            file://remove.ldconfig.call.patch \
>
>            "
>
> SRC_URI[md5sum] = "2ab442d169156f34c379c968f3f482dd"
>
> SRC_URI[sha256sum] =
> "49e2e9658dfb036900da6ea0267a737fa3c4eee6666776d378c79d52e9334934"
>
>
>
> do_configure (){
>
>                 ./configure --prefix=${prefix} --shared --libdir=${libdir} }
>
>
>
> do_compile (){
>
>                 oe_runmake
>
> }
>
>
>
> do_install() {
>
>                 oe_runmake DESTDIR=${D} install
>
> }

This should work with the defaults provided by 'autotools' class.

> BBCLASSEXTEND = "native nativesdk"

Read below...

> I have a doubt about the need of "native nativesdk" If I understand well the
> building of this package depends of a zlib native building on the host,
> therefore the "native".  Is it needed to build the package on the host? If I
> build zlib using the meta-toolchain outside of yocto is not needed any host
> building of the library. If I remove BBCLASSEXTEND of the recipe, I have
> errors during Yocto building What´s the difference between native &
> nativesdk?

External toolchain uses the nativesdk variant.

The BBCLASSEXTEND is equivalent of providing a zlib-native and
zlib-nativesdk recipes; when no class-<virtual> variant is provided,
the defaults are used. This allow for easy maintenance and avoid
useless code duplication.

-- 
Otavio Salvador                             O.S. Systems
http://www.ossystems.com.br        http://code.ossystems.com.br
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