Hi Erik,

Unfortunatly Visual Studio is not an option for me.

I didn't find this page but as I understand it helps to install python libs (extensions) with mingw. What I try to do is build python from src to get an appropriate static library.

I can link it with my Qt toolchain (Mingw 4.6.3) and it compiles without error, but it fails to run.

I double check it. All of my libs and tools are 32-bit.

Thank you very much for your help.

Regards,

Miklós

2014-06-04 18:50 GMT+02:00 Erik H <ice.rikh@gmail.com>:

This is educational for me; to minimize pain, I settled on visual studio + intel compiler long ago whenever I am coerced into windows development.

You mentioned that did some surfing; did you encounter this page?  Apparently, mingw should be able to link against the standard, visual studio compiled python lib.  Which would be a blessing for you if it works... Are you trying to build 32-bit binaries linked against 64-bit python libs by any chance?

If you don't get any joy, I'll try setting up an official python binaries + mingw environment on my windwoes system at home after work today or tomorrow.  Are you strictly targeting 2.7?

-Erik

On Wed, Jun 4, 2014 at 3:07 AM, Miklós Tóth <spiralfuzet@gmail.com> wrote:

Hi Erik,

Thanks for the response.

Yes I'm using makefile but I think the problem is different.

Here is the gcc command that fails:
gcc -c -fno-strict-aliasing -g -O2 -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes  -I. -IInclude -I./Include   -DPy_BUILD_CORE -o Python/asdl.o Python/asdl.c

It has a -I./Include argument.

So, I surf the Internet (a lot) and I found that at initial there were no autotool support for installing python from source.

Later I found a Python 3.4 page were I could download an src setup for mingw installation. Unfortunatly that doesn't work either.

So I reinstalled my Python and somehow I could link the library to my project. (I don't know how this possible, but the latest version of 2.7 works with my project. Blind luck I guess.) I could use PyRun_SimpleString but the PyRun_SimpleFileEx call crashes for some reason.

Than I tried boost::python and it crashes aswell at the first object result = eval("5/2"); call.

(I didn't forget to call Py_Initialize();).

Any suggestions?

Thanks,

Miklós

2014-06-03 23:18 GMT+02:00 Erik H <ice.rikh@gmail.com>:

Hi Miklós,

Are you using a makefile?  If so, it looks like you need to add -I/cygdrive/e/INSTALL/python_src/Python-2.7.6/Include to the Makefile's CFLAGS or CC variable, or somehow ensure that -I/cygdrive/e/INSTALL/python_src/Python-2.7.6/Include is passed to the compiler in any case.

Regards,

Erik

On Mon, Jun 2, 2014 at 3:17 AM, Miklós Tóth <spiralfuzet@gmail.com> wrote:

Hi!

Any updates on this?

I get the following error:

/cygdrive/e/INSTALL/python_src/Python-2.7.6
$ mingw32-make
process_begin: CreateProcess(NULL, /usr/bin/mkdir -p Include, ...) failed.
make (e=2): The system cannot find the file specified.
mingw32-make: *** [Include/graminit.h] Error 2

but the corresponding file is there:

/cygdrive/e/INSTALL/python_src/Python-2.7.6
$ ls Include/g*
Include/genobject.h  Include/graminit.h  Include/grammar.h

What am I missing? Any thoughts?

Thanks,
Miklós

2014-05-27 14:06 GMT+02:00 Miklós Tóth <spiralfuzet@gmail.com>:

Hi All,

I want to embed python in my c++ code using boost.python library.

As far as I understand I need python headers and libs.

So my python27.lib is "incompatible". I want to compile it from code but I failed with mingw32.

Could you give me some advice, or links to achieve my goal?

I'm using gcc4.6.3 and qt 4.8.2 and boost 1.49 on windows 7.

Thanks,

Miklós

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