[Buildroot] Buildroot package for psycopg module for Beaglebone black

[pborut123 <pborut123@gmail.com>]

Hello Arnout,

Thank you for your answer.
In the mean time, I've managed to solve problem by myself.

message 'error: option --executable not recognized' was issued from
python setup.py install ...options...
One of options was --executable=/usr/bin/python that came from 
buildroot's main python package makefile
pkg-python.mk, see here excerpt:

PKG_PYTHON_SETUPTOOLS_INSTALL_TARGET_OPTS = \
     --prefix=$(TARGET_DIR)/usr \
     --executable=/usr/bin/python \
     --single-version-externally-managed \
     --root=/

I have removed line '--executable=/usr/bin/python' and package built 
correctly.
I'm not deeply familiar with python setup system, but I guess that here 
must be
some difference in installation of pure python modules and modules that 
use cython, which is the case of psycopg2.
I have added several other python packages that were pure python ones 
without problem and using original script.

I have rebuilt whole system, having many python modules, with above 
change without problems
I haven't commited that change back, so that I don't break anything else.
Since I've changed pkg-python.mk which is used by many python modules 
that I didn't try, I haven't commited that change back, so that I don't 
break anything else.

I can do it of course.
Do you perhaps know, are here some rules on commits of this sort?

Thank you and best regards,
Borut.

On 29.6.2016 1:27, Arnout Vandecappelle wrote:
> On 28-06-16 13:25, pborut123 wrote:
>> Hello,
>>
>> I'm new to this mailing list, quite new to buildroot, too.
>> I'm trying to build distribution for Beaglebone black with Python 3.5.1 and
>> postgresql 9.5.2.
>> I want to have also psycopg2 module that is not present in current package list.
>> I've tried to make my own package but I'm not successful.
>>
>> Last error, I've received from build is at installation step:
>>>>> python-psycopg 2.6.1 Installing to target
>> ...
>> error: option --executable not recognized
>   We're missing some context here: which command issued this error? It should be
> written a few lines above.
>
>> make: ***
>> [..buildroot/output/build/python-psycopg-2.6.1/.stamp_target_installed] Error 1
>>
>> My question is if can anybody help me with this, pointing me on what I've done
>> wrong.
>>
>> Here is my package code:
>>
>> PYTHON_PSYCOPG_VERSION = 2.6.1
>> PYTHON_PSYCOPG_SOURCE = psycopg2-$(PYTHON_PSYCOPG_VERSION).tar.gz
>> PYTHON_PSYCOPG_SITE = http://initd.org/psycopg/tarballs/PSYCOPG-2-6
>> PYTHON_PSYCOPG_LICENSE = GPLv2
>> PYTHON_PSYCOPG_LICENSE_FILES = LICENSE
>> PYTHON_PSYCOPG_SETUP_TYPE = setuptools
>> PYTHON_PSYCOPG_BUILD_OPTS = build_ext --pg-config
>> $(STAGING_DIR)/usr/bin/pg_config build
>>
>   You will certainly need
>
> PYTHON_PSYCOPG_DEPENDENCIES = postgresql
>
>> define PYTHON_PSYCOPG_INSTALL_CUSTOM_PG_CONFIG
>>      $(INSTALL) -m 0755 -D package/python-psycopg/pg_config \
>>          $(STAGING_DIR)/usr/bin/pg_config
>   Eek? Why would you want to do this? You should use the pg_config provided by
> postgresql, otherwise things will probably go wrong.
>
>   Regards,
>   Arnout
>
>
>> endef
>> PYTHON_PSYCOPG_PRE_BUILD_HOOKS += PYTHON_PSYCOPG_INSTALL_CUSTOM_PG_CONFIG
>> $(eval $(python-package))
>>
>> and here is missing host pg_config file, I've inserted to setup.py:
>>
>> #!/bin/sh
>> # I've pointed to already cross-build posgresql base directory in build
>> prefix=buildroot/output/build/postgresql-9.5.2/src
>>
>> case "$1" in
>>    --includedir)
>>      echo "$prefix/include"
>>      ;;
>>    --libdir)
>>      echo "$prefix/lib"
>>      ;;
>>    --version)
>>        echo "PostgreSQL 9.5.2"
>>      ;;
>>
>>    *)
>>      echo "Usage: $0 {--includedir|--libdir}"
>> esac
>>
>> Thank you and best regards,
>> Borut.
>>
>>
>>
>>
>>
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