New issue 2497: Installing lxml fails on PyPy 3.5: static declaration of
‘PyBytes_FromFormat’ follows non-static declaration
https://bitbucket.org/pypy/pypy/issues/2497/installing-lxml-fails-on-pypy-35-static
Konstantin Lopuhin:
Here is the error:
```
$ pip install lxml
Collecting lxml
Using cached lxml-3.7.3.tar.gz
Building wheels for collected packages: lxml
Running setup.py bdist_wheel for lxml ... error
Complete output from command /home/kostia/tmp/pypy3/bin/pypy3 -u -c "import
setuptools,
tokenize;__file__='/tmp/pip-build-giz7byil/lxml/setup.py';f=getattr(tokenize,
'open',
open)(__file__);code=f.read().replace('\r\n',
'\n');f.close();exec(compile(code, __file__, 'exec'))" bdist_wheel -d
/tmp/tmps8n0ictjpip-wheel- --python-tag pp358:
Building lxml version 3.7.3.
Building without Cython.
Using build configuration of libxslt 1.1.28
running bdist_wheel
running build
running build_py
creating build
creating build/lib.linux-x86_64-3.5
creating build/lib.linux-x86_64-3.5/lxml
copying src/lxml/cssselect.py -> build/lib.linux-x86_64-3.5/lxml
...
copying src/lxml/isoschematron/resources/xsl/iso-schematron-xslt1/readme.txt
->
build/lib.linux-x86_64-3.5/lxml/isoschematron/resources/xsl/iso-schematron-xslt1
running build_ext
building 'lxml.etree' extension
creating build/temp.linux-x86_64-3.5
creating build/temp.linux-x86_64-3.5/src
creating build/temp.linux-x86_64-3.5/src/lxml
gcc -pthread -DNDEBUG -O2 -fPIC -I/usr/include/libxml2 -Isrc/lxml/includes
-I/home/kostia/tmp/pypy3/include -c src/lxml/lxml.etree.c -o
build/temp.linux-x86_64-3.5/src/lxml/l
xml.etree.o -w
In file included from src/lxml/lxml.etree.c:515:0:
src/lxml/includes/etree_defs.h:97:18: error: static declaration of
‘PyBytes_FromFormat’ follows non-static declaration
static PyObject* PyBytes_FromFormat(const char* format, ...) {
^
In file included from /home/kostia/tmp/pypy3/include/Python.h:128:0,
from src/lxml/lxml.etree.c:84:
/home/kostia/tmp/pypy3/include/bytesobject.h:60:24: note: previous
declaration of ‘PyBytes_FromFormat’ was here
PyAPI_FUNC(PyObject *) PyBytes_FromFormat(const char*, ...);
^
Compile failed: command 'gcc' failed with exit status 1
creating tmp
cc -I/usr/include/libxml2 -I/usr/include/libxml2 -c
/tmp/xmlXPathInit_o3zaqum.c -o tmp/xmlXPathInit_o3zaqum.o
/tmp/xmlXPathInit_o3zaqum.c:2:1: warning: return type defaults to ‘int’
[-Wimplicit-int]
main (int argc, char **argv) {
^
cc tmp/xmlXPathInit_o3zaqum.o -lxml2 -o a.out
error: command 'gcc' failed with exit status 1
----------------------------------------
Failed building wheel for lxml
```
This is Ubuntu 16.04, using latest pypy 3.5 nightly
(http://buildbot.pypy.org/nightly/py3.5/pypy-c-jit-90688-27474b4d14e4-linux64.tar.bz2).
Cython is installed, and ``import Cython.Compiler.Version`` works.
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