On 2015-04-02 11:36, Andy Falanga (afalanga) wrote:
HI,
Thanks to Gary Thomas' response, I was able to get the python libraries from
Boost built. Now, when I'm building my own library, which requires
libboost_python, the configure script isn't able to find it. How do I work
with these cross compilation environments?
What I have is this. I added the line below to local.conf as Gary instructed.
PACKAGECONFIG_pn-boost = "python"
I then ran
bitbake core-image-minimal
This built both python and the full set of boost (include libboost_python). I see
this in <output_dir>/sysroots/zc706-zynq7/usr/lib. (In case it's relevant,
this environment was constructed using
/opt/yocto/poky-dizzy-12.0.1/oe-init-build-env.) I then use a script that a
co-worker wrote (quite simple) which configures the paths accordingly to use the
cross compiler toolset. My path is as follows:
/home/afalanga/src/crisscross/tmp/sysroots/x86_64-linux/usr/bin/arm-poky-linux-gnueabi:/home/afalanga/src/crisscross/tmp/sysroots/x86_64-linux/usr/bin:/opt/yocto/poky-dizzy-12.0.1/scripts:/opt/yocto/poky-dizzy-12.0.1/bitbake/bin:/opt/petalinux-v2014.4-final/tools/linux-i386/arm-xilinx-linux-gnueabi/bin:/opt/petalinux-v2014.4-final/tools/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games
In my own library project, I run my configure script with this:
./configure --host=arm-poky-linux-gnueabi
All is working quite well except that I run into this error:
...
checking for Boost headers version >= 1.47.0... yes
checking for Boost's header version... 1_56
checking for the toolset name used by Boost for arm-poky-linux-gnueabi-g++...
gcc49 -gcc
checking boost/system/error_code.hpp usability... yes
checking boost/system/error_code.hpp presence... yes
checking for boost/system/error_code.hpp... yes
checking for the Boost system library... yes
checking boost/filesystem/path.hpp usability... yes
checking boost/filesystem/path.hpp presence... yes
checking for boost/filesystem/path.hpp... yes
checking for the Boost filesystem library... (cached) yes
checking boost/python.hpp usability... no
checking boost/python.hpp presence... no
checking for boost/python.hpp... no
configure: error: cannot find boost/python.hpp
I can find this file in <output_dir>/sysroots/zx706-zinq7/usr/include/boost, why can't
the configure script? What's wrong with how I've done things? Or, and probably much more
beneficial, when I say, "--host=arm-poky-linux-gnueabi" what does that actually mean?
Where are these things installed? Why is it saying that it cannot find the header when I can?
The only rational explanation is that it's looking somewhere other than where I am. Thus, I
don't understand as much as I should. What should I read in the manual?
Another thing to look at is the 'config.log' in your build
(for your "library" recipe). It should tell you more about
why it can't find boost/python.hpp
--
------------------------------------------------------------
Gary Thomas | Consulting for the
MLB Associates | Embedded world
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