Hello Tarek, great, good to know i can get some help here.
> > I write a C++ extension module in which i need to tell if i compile on > > Linux or Windows. What is the preferred way to do this? > > What are you doing exactly with this information ? Basically what i try to do is write an extension module in C++ for Python. In the source code there are some parts for #ifdef HOST_MSWin32 and also for #ifdef HOST_linux. I already got an idea, as setup.py is normal pyhton code i could try os.name . That could help distinguishing in setup.py. But i'm not sure on how to forward this information so it is available in the source code. It could be also something like #ifdef HOST_posix or HOST_nt . What is the preferred way to make this information available to the compiler so i can use code like #ifdef HOST_posix? After looking in the documentation i found "define_macros", seems like the way to go, right? Another thing that i'm not sure about is that i need to use other C libraries from that module i write. For example i want to load JPEG files, so i need to find the header for libjpeg.h and also to link libjpeg to my module. If i write a configure script (autoconf / autotools) there are code snippets to test for libraries and paths (to find the library and to set the include path). Also to test for a certain version. Is that possible to use in distutils / setup.py? That link you gave below is a good example, the bad news is that i have to program a part for each OS. Thanks a lot for your hints. If any of the above is wrong then please correct me. Best regards, Torsten. Am Dienstag, 26. Januar 2010 17:32:37 schrieb Tarek Ziadé: > On Mon, Jan 25, 2010 at 11:22 PM, Torsten Mohr <[email protected]> wrote: > > Hello, > > > > i'm not sure if this is the preferred way to get help. If it is not, can > > you then please tell me how? > > That's the best way :) > > > > Also, i use libjpeg, libtiff and libpng. Can i portably test for > > presence and version of these libs on Linux, Windows and other OSes? > > > > The documentation on docs.python.org is quite good, but are there some > > additional examples available? > > What's usually done is testing for the platform in setup.py to decide which > extensions are going in. > > see http://bitbucket.org/kang/python-keyring-lib/src/ and in > particular "extensions.py" used in setup.py > > Regards > Tarek > > > Thanks for any hints, > > Torsten. > > _______________________________________________ > > Distutils-SIG maillist - [email protected] > > http://mail.python.org/mailman/listinfo/distutils-sig > _______________________________________________ Distutils-SIG maillist - [email protected] http://mail.python.org/mailman/listinfo/distutils-sig
