Re: [pygsl-discuss] PyGSL install on Windows 7, 64 bit, Python 2.7 with GSL 1.15

[Pierre S. <p.s...@gs...>]

Dear Bereket,

     I guess the linking fails as gcc can not use python.dll directly.

Did you use pexports for building libpython.a?

This web page e.g. gives a good explanation:
http://eli.thegreenplace.net/2008/06/28/compiling-python-extensions-with-distutils-and-mingw/

Hope that helps.
Sincerely yours
     Pierre


> Hi,
>
> I'm trying to install PyGSL on my computer (64 bit Windows 7), with 
> Python 2.7 and GSL 1.15 installed. I'm pretty much stuck and I would 
> love for some extra help. GSL installed fine, but its the wrapper 
> that's the problem. For some reason I can't build pygsl. Apparently 
> gcc is the problem (got the same problem on another windows machine). 
> Or it could be that pygsl appears to be using a file named AMD64 while 
> my computer is x86. I would love to use the windows binary for pygsl, 
> but it only exists for python 2.5, and my project needs 2.6 or higher. 
> I've used both the windows binary for GSL and built it from source, 
> but I get the same problem either way. I tried copying dlls from GSL 
> into pygsl but that didn't work. Some forums mentioned a file called 
> gsl.dll but I can't seem to find it. I've also tried to use Cygwin and 
> to compile with minGW32 to no avail.
>
> cmds I ran:
> python setup.py install
> python setup.py build
> python setup.py build_ext -i
> python setup.py build --compiler=mingw32
>
> Any ideas?? Thanks.
>
> Cheers,
> Bereket
>
>
> Got the same message in Cygwin as in the windows cmd prompt. Error 
> message:
>
> $ /cygdrive/c/Python27/python.exe setup.py build_ext -i
> numpy
> Forcing DISTUTILS_USE_SDK=1
> Building testing ufuncs!
> running build_ext
> building 'errno' extension
> C compiler: gcc -g -DDEBUG -DMS_WIN64 -mno-cygwin -O0 -Wall 
> -Wstrict-prototypes
>
> compile options: '-DSWIG_COBJECT_TYPES=1 -DGSL_RANGE_CHECK=1 -DDEBUG=1 
> -DNUMERIC=0 -DPYGSL_GSL_MAJOR_VERSION=1 -DPYGSL_GSL_MINOR_VERSION=15 
> -UNDEBUG -IC:\Users\Bereket\gsl-1.15\include -IInclude -I. 
> -IC:\Python27\lib\site-packages\numpy\core\include 
> -IC:\Python27\include -IC:\Python27\PC -c'
> gcc -g -DDEBUG -DMS_WIN64 -mno-cygwin -O0 -Wall -Wstrict-prototypes 
> -DSWIG_COBJECT_TYPES=1 -DGSL_RANGE_CHECK=1 -DDEBUG=1 -DNUMERIC=0 
> -DPYGSL_GSL_MAJOR_VERSION=1 -DPYGSL_GSL_MINOR_VERSION=15 -UNDEBUG 
> -IC:\Users\Bereket\gsl-1.15\include -IInclude -I. 
> -IC:\Python27\lib\site-packages\numpy\core\include 
> -IC:\Python27\include -IC:\Python27\PC -c src/init/errorno.c -o 
> build\temp.win-amd64-2.7\Release\src\init\errorno.o
> Found executable C:\cygwin\bin\gcc.exe
> gcc -g -mno-cygwin -shared 
> build\temp.win-amd64-2.7\Release\src\init\errorno.o 
> -LC:\Users\Bereket\gsl-1.15\lib -LC:\Python27\libs 
> -LC:\Python27\PCbuild\amd64 -lgsl -lgslcblas -lm -lpython27 -lmsvcr90 
> -o C:\Python27\Lib\pygsl-0.9.5\pygsl\errno.pyd
> build\temp.win-amd64-2.7\Release\src\init\errorno.o: In function 
> `add_errno':
> /cygdrive/c/Python27/Lib/pygsl-0.9.5/src/init/errorno.c:14: undefined 
> reference to `__imp__PyInt_FromLong'
> /cygdrive/c/Python27/Lib/pygsl-0.9.5/src/init/errorno.c:20: undefined 
> reference to `__imp__PyDict_SetItemString'
> build\temp.win-amd64-2.7\Release\src\init\errorno.o: In function 
> `initerrno':
> /cygdrive/c/Python27/Lib/pygsl-0.9.5/src/init/errorno.c:37: undefined 
> reference to `__imp__Py_InitModule4_64'
> /cygdrive/c/Python27/Lib/pygsl-0.9.5/src/init/errorno.c:40: undefined 
> reference to `__imp__PyModule_GetDict'
> collect2: ld returned 1 exit status
> error: Command "gcc -g -mno-cygwin -shared 
> build\temp.win-amd64-2.7\Release\src\init\errorno.o 
> -LC:\Users\Bereket\gsl-1.15\lib -LC:\Python27\libs 
> -LC:\Python27\PCbuild\amd64 -lgsl -lgslcblas -lm -lpython27 -lmsvcr90 
> -o C:\Python27\Lib\pygsl-0.9.5\pygsl\errno.pyd" failed with exit status 1
>


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