Linking against Boost python 3.6. can't find boost_python instead of boost_python3

Question

I have problems linking against boost python.

I am using Visual Studio 2017 and compiled the boost 1_64 package with the following command line:

b2          


        

Answer 1

Sorry for coming in late here, just went through the same nonsense myself. Turns out that boost doesn't handle two installs very well (or even a py3.x by itself)

You can definitely solve this by going into <boost/python/detail/config.hpp> and making a quick change. To allow for boost to work with both python 2.x (2.7, presumably) and 3.x, I'd suggest changing:

#define BOOST_LIB_NAME boost_python

to

#if PY_MAJOR_VERSION >=3
  #define BOOST_LIB_NAME boost_python3
#else
  #define BOOST_LIB_NAME boost_python
#endif

Answer 2

You provide

boost_python3-vc141-mt-gd-1_64.dll
boost_python3-vc141-mt-gd-1_64.lib

but the error reports missing

boost_python-vc141-mt-gd-1_64.lib

(spot the difference!)

So obviously, your IDE (VS) attempts to build a python, not a python3 extension. I don't know VS, but there must be away to change that somewhere somehow.

Answer 3

I just want to heads up here as this happened to me. Here is the link. It may have been that you included the 2.7 python headers instead of the 3.6. And yea, nothing about it is obvious, it really put me to work.