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From: Yegor Yefremov <yegorslists@googlemail.com>
To: buildroot@busybox.net
Subject: [Buildroot] [PATCH v2 3/3] python-cffi: add host variant
Date: Tue, 5 Jan 2016 16:40:12 +0100	[thread overview]
Message-ID: <CAGm1_ksVRyLz6Zi+-Lkz0NYi0ZEJMbHrP1TSY9ZnX4Mxe_gtfg@mail.gmail.com> (raw)
In-Reply-To: <1451978244-15878-4-git-send-email-yegorslists@googlemail.com>

Hello Thomas, Yann,

On Tue, Jan 5, 2016 at 8:17 AM,  <yegorslists@googlemail.com> wrote:
> From: Yegor Yefremov <yegorslists@googlemail.com>
>
> Host variant is needed to cross-compile CFFI based C library wrappers.
>
> Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
> ---
> Changes:
>         v2: add host-libffi dependency
>
>  package/python-cffi/python-cffi.mk | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/package/python-cffi/python-cffi.mk b/package/python-cffi/python-cffi.mk
> index 70fbe02..02c969b 100644
> --- a/package/python-cffi/python-cffi.mk
> +++ b/package/python-cffi/python-cffi.mk
> @@ -11,5 +11,7 @@ PYTHON_CFFI_SETUP_TYPE = setuptools
>  PYTHON_CFFI_DEPENDENCIES = host-pkgconf libffi
>  PYTHON_CFFI_LICENSE = MIT
>  PYTHON_CFFI_LICENSE_FILES = LICENSE
> +HOST_PYTHON_CFFI_DEPENDENCIES = host-python-pycparser host-libffi
>
>  $(eval $(python-package))
> +$(eval $(host-python-package))
> --

I have now following theory regarding checking dependencies in target
and host variant.

If you look at python-tornado's setup.py file [1], you see, that they
say, install_requires will be checked only for setuptools. This is
also the case for host-python-cffi. The target variant will be
installed with --single-version-externally-managed option, that
performs "old-style" install [2] [3], i.e. without checking
install_requires.

That's my understanding for now.

[1] https://github.com/tornadoweb/tornado/blob/master/setup.py#L126
[2] https://pythonhosted.org/setuptools/setuptools.html
[3] https://bitbucket.org/pypa/setuptools/src/e517fced669d54bcaf3da2d8ca468d29120fedfc/setuptools/command/install.py?at=default&fileviewer=file-view-default#install.py-58

Yegor

  reply	other threads:[~2016-01-05 15:40 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-01-05  7:17 [Buildroot] [PATCH v2 0/3] CFFI backend yegorslists at googlemail.com
2016-01-05  7:17 ` [Buildroot] [PATCH v2 1/3] libffi: fix headers location for host-libffi yegorslists at googlemail.com
2016-02-03 21:54   ` Thomas Petazzoni
2016-01-05  7:17 ` [Buildroot] [PATCH v2 2/3] python-pycparser: new package yegorslists at googlemail.com
2016-02-03 21:54   ` Thomas Petazzoni
2016-01-05  7:17 ` [Buildroot] [PATCH v2 3/3] python-cffi: add host variant yegorslists at googlemail.com
2016-01-05 15:40   ` Yegor Yefremov [this message]
2016-01-05 15:45     ` Yegor Yefremov
2016-02-03 22:00   ` Thomas Petazzoni

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