Compile problems when trying to link to 1.67.0 python library

[Silarn]

I decided to give the RC2 a spin and ran into just one issue in my project. We have a DLL which links with the python .lib in windows, and when the MSVC 2017 compiler attempted to parse the library name headers in detail/config.hpp at line 108:

#define BOOST_LIB_NAME boost_python##PY_MAJOR_VERSION##PY_MINOR_VERSION

...it resulted in a linker error looking for boost_pythonPY_MAJOR_VERSIONPY_MINOR_VERSION-vc141-mt-x64-1_67.lib.

I had to modify the header to something like this in order to link properly:

#define _BPYCONCAT(A, B) A ## B
#define BPYCONCAT(A, B) _BPYCONCAT(A, B)
#define BOOST_LIB_NAME BPYCONCAT(boost_python, BPYCONCAT(PY_MAJOR_VERSION, PY_MINOR_VERSION))

[stefanseefeld]

Can you please try out this fix: 2431370 ?
With a bit of luck we can still get this into the release, but unfortunately I'm unable to test it myself.
Thanks !

[Silarn]

It looks good. I built the project with this change without issue and just to be sure I rebuilt boost. Nothing went wrong.

[stefanseefeld]

Thanks for the confirmation. I have asked the Boost release manager whether he could cherry-pick this fix into the release.
Since this is fixed on the develop branch, I'm closing this issue.

[stefanseefeld]

For the record: this has been merged to master. Still waiting for a bugfix release.

[liuaifu]

Thank you, this fix is valid.

[anton-matosov]

Hi @stefanseefeld, I am experiencing same issue while building a python extension and looking for a way to disable autolinking. Can you suggest a way to do that?

[stefanseefeld]

@anton-matosov Apparently the way to achieve this is to define BOOST_ALL_NO_LIB, which will disable the autolink logic. For the rest, I suppose that depends on what build system you are using...

[anton-matosov]

Appreciate your quick response! It worked. I am using setuptools for the build, so simple '-DBOOST_ALL_NO_LIB' compiler flag got the job done.

[JLVarjo]

Please note that this issue seems to be in numpy module also, namely numpy/config.hpp on line 65. By applying this fix also to this file resolved the issue.

[stefanseefeld]

Right, thanks for the reminder. Fixed with b4230e9.

[illera88]

Any idea when Boost is gonna include this fix or if there are nightly builds to get boost with this fix?

thanks