How to link with Python3 Libs with cmake?
I have Python3 installed via brew install python3. However, cmake cannot find PythonLibs 3. Here's the header of my CMakeLists.txt.
cmake_minimum_required(VERSION 3.0)
find_package(PythonLibs 3 REQUIRED)
When I ran cmake, I got this error message
Could NOT find PythonLibs: Found unsuitable version "2.7.6", but required is at least "3" (found /usr/lib/libpython2.7.dylib)
Not sure what I did wrong.
Answer
In my experience, this happened because I was using an older version of cmake (2.8 instead of 3+) that didn't know about Python 3.4 (it gave up after 3.3.)
The solution was to go into the CMakeLists.txt file and add an "additional versions" directive ABOVE the find_package:
set(Python_ADDITIONAL_VERSIONS 3.4)
find_package(PythonLibs 3 REQUIRED)
You could probably also fix it by upgrading your version of cmake. But the above worked for me with cmake 2.8