[Buildroot] [PATCH 01/11 v4] package/python-lxml: new package

[Yann E. MORIN <yann.morin.1998@free.fr>]

Yegor, All,

On 2015-01-18 18:27 +0100, Yegor Yefremov spake thusly:
> On Sun, Jan 18, 2015 at 1:11 PM, Yann E. MORIN <yann.morin.1998@free.fr> wrote:
> > The lxml XML toolkit is a Pythonic binding for the C libraries libxml2
> > and libxslt.
> Trying to build lxml as normal package and get following error:

You mean, as a target package?

It can not work as-is, because I only declared the host variant.
You'd have to add the target variant if you want the target package.

> running build_ext
> building 'lxml.etree' extension
> creating build/temp.linux-x86_64-2.7
> creating build/temp.linux-x86_64-2.7/src
> creating build/temp.linux-x86_64-2.7/src/lxml
> /home/user/Documents/versioned/buildroot/output/host/usr/bin/arm-buildroot-linux-uclibcgnueabi-gcc
> -fno-strict-aliasing -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE
> -D_FILE_OFFSET_BITS=64 -Os -DNDEBUG -g -fwrapv -O3 -Wall
> -Wstrict-prototypes -fPIC
> -I/home/user/Documents/versioned/buildroot/output/build/python-lxml-3.4.1/src/lxml/includes
> -I/home/user/Documents/versioned/buildroot/output/host/usr/arm-buildroot-linux-uclibcgnueabi/sysroot/usr/include/python2.7
> -c src/lxml/lxml.etree.c -o
> build/temp.linux-x86_64-2.7/src/lxml/lxml.etree.o -w
> In file included from src/lxml/lxml.etree.c:239:0:
> /home/user/Documents/versioned/buildroot/output/build/python-lxml-3.4.1/src/lxml/includes/etree_defs.h:14:31:
> fatal error: libxml/xmlversion.h: No such file or directory
>  #include "libxml/xmlversion.h"
>                                ^
> compilation terminated.
> 
> What should I pass to setup.py? Should I pass include path to
> include/libxml2? How does it work for the host-package?

Well, I just tried, and it builds fine, even when I remove the libxml2
development files from my host:

running build_ext
building 'lxml.etree' extension
creating build/temp.linux-x86_64-2.7
creating build/temp.linux-x86_64-2.7/src
creating build/temp.linux-x86_64-2.7/src/lxml
/usr/bin/gcc -pthread -fno-strict-aliasing -O2
-I/home/ymorin/dev/buildroot/O/host/usr/include -DNDEBUG -g -fwrapv -O3
-Wall -Wstrict-prototypes -fPIC
-I/home/ymorin/dev/buildroot/O/host/usr/include
-I/home/ymorin/dev/buildroot/O/host/usr/include/libxml2
-I/home/ymorin/dev/buildroot/O/build/host-python-lxml-3.4.1/src/lxml/includes
-I/home/ymorin/dev/buildroot/O/host/usr/include/python2.7 -c
src/lxml/lxml.etree.c -o
build/temp.linux-x86_64-2.7/src/lxml/lxml.etree.o -w
/usr/bin/gcc -pthread -shared -L/home/ymorin/dev/buildroot/O/host/lib
-L/home/ymorin/dev/buildroot/O/host/usr/lib
-Wl,-rpath,/home/ymorin/dev/buildroot/O/host/usr/lib
-Wl,--enable-new-dtags build/temp.linux-x86_64-2.7/src/lxml/lxml.etree.o
-L/home/ymorin/dev/buildroot/O/host/usr/lib
-L/home/ymorin/dev/buildroot/O/host/usr/lib -lxslt -lexslt -lxml2 -lz
-lm -lpython2.7 -o build/lib.linux-x86_64-2.7/lxml/etree.so
building 'lxml.objectify' extension
/usr/bin/gcc -pthread -fno-strict-aliasing -O2
-I/home/ymorin/dev/buildroot/O/host/usr/include -DNDEBUG -g -fwrapv -O3
-Wall -Wstrict-prototypes -fPIC
-I/home/ymorin/dev/buildroot/O/host/usr/include
-I/home/ymorin/dev/buildroot/O/host/usr/include/libxml2
-I/home/ymorin/dev/buildroot/O/build/host-python-lxml-3.4.1/src/lxml/includes
-I/home/ymorin/dev/buildroot/O/host/usr/include/python2.7 -c
src/lxml/lxml.objectify.c -o
build/temp.linux-x86_64-2.7/src/lxml/lxml.objectify.o -w
/usr/bin/gcc -pthread -shared -L/home/ymorin/dev/buildroot/O/host/lib
-L/home/ymorin/dev/buildroot/O/host/usr/lib
-Wl,-rpath,/home/ymorin/dev/buildroot/O/host/usr/lib
-Wl,--enable-new-dtags
build/temp.linux-x86_64-2.7/src/lxml/lxml.objectify.o
-L/home/ymorin/dev/buildroot/O/host/usr/lib
-L/home/ymorin/dev/buildroot/O/host/usr/lib -lxslt -lexslt -lxml2 -lz
-lm -lpython2.7 -o build/lib.linux-x86_64-2.7/lxml/objectify.so

I don't know what would break for the target package. Maybe it includes
unsafe paths (-I and/or -L) ?

Regards,
Yann E. MORIN.

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