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materialsvirtuallab
Qhull installation trouble in windows
Hi, I am trying to pip install qhull in a win7 environment. It failed giving and is throwing up the following error. error: command 'C:\Users\xxxxxx\AppData\Local\Programs\Common\Microsoft\Visual C++ for Python\9.0\VC\Bin\cl.exe' failed with exit status 2 Any ideas?
the full message is a follows C:\Users\xxxxxxx\AppData\Local\Programs\Common\Microsoft\Visual C++ for Python\9.0\VC\Bin\cl.exe /c /nologo /Ox /MD /W3 /GS- /DNDEBUG -Isrc\libqhull -IC:\Python27\include -IC:\Python27\PC /Tcsrc_pyhull.c /Fobuild\temp.win32-2.7\Release\src_pyhull.obj _pyhull.c src_pyhull.c(91) : warning C4013: 'strtok_r' undefined; assuming extern returning int src_pyhull.c(91) : warning C4047: '=' : 'char *' differs in levels of indirection from 'int' src_pyhull.c(100) : warning C4013: 'fmemopen' undefined; assuming extern returning int src_pyhull.c(100) : warning C4047: '=' : 'FILE *' differs in levels of indirection from 'int' src_pyhull.c(101) : warning C4013: 'open_memstream' undefined; assuming extern returning int src_pyhull.c(101) : warning C4047: '=' : 'FILE *' differs in levels of indirection from 'int' src_pyhull.c(169) : warning C4047: '=' : 'char *' differs in levels of indirection from 'int' src_pyhull.c(180) : warning C4047: '=' : 'FILE *' differs in levels of indirection from 'int' src_pyhull.c(181) : warning C4047: '=' : 'FILE *' differs in levels of indirection from 'int' src_pyhull.c(255) : warning C4047: '=' : 'char *' differs in levels of indirection from 'int' src_pyhull.c(264) : warning C4047: '=' : 'FILE *' differs in levels of indirection from 'int' src_pyhull.c(265) : warning C4047: '=' : 'FILE *' differs in levels of indirection from 'int' src_pyhull.c(338) : warning C4047: '=' : 'char *' differs in levels of indirection from 'int' src_pyhull.c(347) : warning C4047: '=' : 'FILE *' differs in levels of indirection from 'int' src_pyhull.c(348) : warning C4047: '=' : 'FILE *' differs in levels of indirection from 'int' src_pyhull.c(453) : error C2143: syntax error : missing ')' before '(' src_pyhull.c(453) : error C2143: syntax error : missing ')' before '(' src_pyhull.c(453) : error C2091: function returns function src_pyhull.c(453) : error C2143: syntax error : missing ')' before 'string' src_pyhull.c(453) : error C2091: function returns function src_pyhull.c(453) : error C2143: syntax error : missing '{' before 'string' src_pyhull.c(453) : error C2059: syntax error : '<Unknown>' src_pyhull.c(453) : error C2059: syntax error : ')' src_pyhull.c(453) : error C2059: syntax error : ')'
Regards Hari
I can confirm that this also shows up in Windows XP SP3: (first tried installing without realizing I needed vcpython27, hence the first install attempt shown)
Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.
C:\Documents and Settings\xxxxxx>pip install pyhull
Collecting pyhull
Downloading pyhull-1.5.6.tar.gz (298kB)
100% |################################| 307kB 819kB/s
Requirement already satisfied (use --upgrade to upgrade): numpy in c:\python27\l
ib\site-packages (from pyhull)
Installing collected packages: pyhull
Running setup.py install for pyhull ... error
Complete output from command c:\python27\python.exe -u -c "import setuptools
, tokenize;__file__='c:\\docume~1\\xxxxxx\\locals~1\\temp\\pip-build-ecst0e\\pyh
ull\\setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().rep
lace('\r\n', '\n'), __file__, 'exec'))" install --record c:\docume~1\xxxxxx\loca
ls~1\temp\pip-csphgx-record\install-record.txt --single-version-externally-manag
ed --compile:
running install
running build
running build_py
creating build
creating build\lib.win32-2.7
creating build\lib.win32-2.7\pyhull
copying pyhull\convex_hull.py -> build\lib.win32-2.7\pyhull
copying pyhull\delaunay.py -> build\lib.win32-2.7\pyhull
copying pyhull\halfspace.py -> build\lib.win32-2.7\pyhull
copying pyhull\simplex.py -> build\lib.win32-2.7\pyhull
copying pyhull\voronoi.py -> build\lib.win32-2.7\pyhull
copying pyhull\__init__.py -> build\lib.win32-2.7\pyhull
running build_ext
building 'pyhull._pyhull' extension
error: Microsoft Visual C++ 9.0 is required (Unable to find vcvarsall.bat).
Get it from http://aka.ms/vcpython27
----------------------------------------
Command "c:\python27\python.exe -u -c "import setuptools, tokenize;__file__='c:\
\docume~1\\xxxxxx\\locals~1\\temp\\pip-build-ecst0e\\pyhull\\setup.py';exec(comp
ile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __fi
le__, 'exec'))" install --record c:\docume~1\xxxxxx\locals~1\temp\pip-csphgx-rec
ord\install-record.txt --single-version-externally-managed --compile" failed wit
h error code 1 in c:\docume~1\xxxxxx\locals~1\temp\pip-build-ecst0e\pyhull\
C:\Documents and Settings\xxxxxx>pip install pyhull
Collecting pyhull
Using cached pyhull-1.5.6.tar.gz
Requirement already satisfied (use --upgrade to upgrade): numpy in c:\python27\l
ib\site-packages (from pyhull)
Installing collected packages: pyhull
Running setup.py install for pyhull ... error
Complete output from command c:\python27\python.exe -u -c "import setuptools
, tokenize;__file__='c:\\docume~1\\xxxxxx\\locals~1\\temp\\pip-build-v8jbin\\pyh
ull\\setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().rep
lace('\r\n', '\n'), __file__, 'exec'))" install --record c:\docume~1\xxxxxx\loca
ls~1\temp\pip-ocy8pi-record\install-record.txt --single-version-externally-manag
ed --compile:
running install
running build
running build_py
creating build
creating build\lib.win32-2.7
creating build\lib.win32-2.7\pyhull
copying pyhull\convex_hull.py -> build\lib.win32-2.7\pyhull
copying pyhull\delaunay.py -> build\lib.win32-2.7\pyhull
copying pyhull\halfspace.py -> build\lib.win32-2.7\pyhull
copying pyhull\simplex.py -> build\lib.win32-2.7\pyhull
copying pyhull\voronoi.py -> build\lib.win32-2.7\pyhull
copying pyhull\__init__.py -> build\lib.win32-2.7\pyhull
running build_ext
building 'pyhull._pyhull' extension
creating build\temp.win32-2.7
creating build\temp.win32-2.7\Release
creating build\temp.win32-2.7\Release\src
creating build\temp.win32-2.7\Release\src\libqhull
C:\Program Files\Common Files\Microsoft\Visual C++ for Python\9.0\VC\Bin\cl.
exe /c /nologo /Ox /MD /W3 /GS- /DNDEBUG -Isrc\libqhull -Ic:\python27\include -I
c:\python27\PC /Tcsrc\_pyhull.c /Fobuild\temp.win32-2.7\Release\src\_pyhull.obj
_pyhull.c
src\_pyhull.c(91) : warning C4013: 'strtok_r' undefined; assuming extern ret
urning int
src\_pyhull.c(91) : warning C4047: '=' : 'char *' differs in levels of indir
ection from 'int'
src\_pyhull.c(100) : warning C4013: 'fmemopen' undefined; assuming extern re
turning int
src\_pyhull.c(100) : warning C4047: '=' : 'FILE *' differs in levels of indi
rection from 'int'
src\_pyhull.c(101) : warning C4013: 'open_memstream' undefined; assuming ext
ern returning int
src\_pyhull.c(101) : warning C4047: '=' : 'FILE *' differs in levels of indi
rection from 'int'
src\_pyhull.c(169) : warning C4047: '=' : 'char *' differs in levels of indi
rection from 'int'
src\_pyhull.c(180) : warning C4047: '=' : 'FILE *' differs in levels of indi
rection from 'int'
src\_pyhull.c(181) : warning C4047: '=' : 'FILE *' differs in levels of indi
rection from 'int'
src\_pyhull.c(255) : warning C4047: '=' : 'char *' differs in levels of indi
rection from 'int'
src\_pyhull.c(264) : warning C4047: '=' : 'FILE *' differs in levels of indi
rection from 'int'
src\_pyhull.c(265) : warning C4047: '=' : 'FILE *' differs in levels of indi
rection from 'int'
src\_pyhull.c(338) : warning C4047: '=' : 'char *' differs in levels of indi
rection from 'int'
src\_pyhull.c(347) : warning C4047: '=' : 'FILE *' differs in levels of indi
rection from 'int'
src\_pyhull.c(348) : warning C4047: '=' : 'FILE *' differs in levels of indi
rection from 'int'
src\_pyhull.c(453) : error C2143: syntax error : missing ')' before '('
src\_pyhull.c(453) : error C2143: syntax error : missing ')' before '('
src\_pyhull.c(453) : error C2091: function returns function
src\_pyhull.c(453) : error C2143: syntax error : missing ')' before 'string'
src\_pyhull.c(453) : error C2091: function returns function
src\_pyhull.c(453) : error C2143: syntax error : missing '{' before 'string'
src\_pyhull.c(453) : error C2059: syntax error : '<Unknown>'
src\_pyhull.c(453) : error C2059: syntax error : ')'
src\_pyhull.c(453) : error C2059: syntax error : ')'
src\_pyhull.c(453) : error C2059: syntax error : ')'
error: command 'C:\\Program Files\\Common Files\\Microsoft\\Visual C++ for P
ython\\9.0\\VC\\Bin\\cl.exe' failed with exit status 2
----------------------------------------
Command "c:\python27\python.exe -u -c "import setuptools, tokenize;__file__='c:\
\docume~1\\xxxxxx\\locals~1\\temp\\pip-build-v8jbin\\pyhull\\setup.py';exec(comp
ile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __fi
le__, 'exec'))" install --record c:\docume~1\xxxxxx\locals~1\temp\pip-ocy8pi-rec
ord\install-record.txt --single-version-externally-managed --compile" failed wit
h error code 1 in c:\docume~1\xxxxxx\locals~1\temp\pip-build-v8jbin\pyhull\
C:\Documents and Settings\xxxxxx>
It appears the fix is documented here, under "Compatibility with non-GNU compilers":
http://unixwiz.net/techtips/gnu-c-attributes.html
I had the same problem, so I decided to start working on a patch to get pyhull working on Windows. To start, I made the change @marcio-ao suggested (thanks). This was just the tip of the iceberg though.
Next strtok_r isn't defined on Windows, so we need a substitute. I created additional #ifdef macros to change the calls to strtok for Windows machines for the major functions in _pyhull.c:
#if defined(_WIN32)
while(token = strtok(ptr, " ")) {
argv[argc] = token;
argc += 1;
}
#else
while(token = strtok_r(ptr, " ", &rest)) {
argv[argc] = token;
ptr = rest;
argc += 1;
}
#endif
Next we don't have fmemopen and open_memstream on Windows. The wrappers in /src/fmemopen unfortunately don't help, because they rely on funopen, which isn't present on Windows either. This is where I'm stuck atm... If anyone knows a good way around this or wants to roll a copy of those functions, leave a reply and I can push my changes. Even any ideas or links would be appreciated. Otherwise I'll dig into this tomorrow.
Perhaps someone who is more skilled in C than I am, could have a look at this PR #15.
