title: make: Package python was not found in the pkg-config search path
body: <pre><code>$ make
  pip install runcython
  Requirement already satisfied: runcython in d:\programfiles\conda\lib\site-packages
  Requirement already satisfied: Cython&gt;=0.10 in d:\programfiles\conda\lib\site-packages (from runcython)
  makecython++ stitch_wrapper.pyx "" "stitch_rects.cpp ./hungarian/hungarian.cpp"
  Package python was not found in the pkg-config search path.
  Perhaps you should add the directory containing `python.pc'
  to the PKG_CONFIG_PATH environment variable
  No package 'python' found
  stitch_wrapper.cpp:4:20: fatal error: Python.h: No such file or directory
   #include "Python.h"
                      ^
  compilation terminated.
  make: *** [all-python2] Error 1
  </code></pre>
  
  <p>Trying to compile some utils written in c++, but get this error:</p>
  
  <blockquote>
    <p>Package python was not found in the pkg-config search path.</p>
  </blockquote>
  
  <p>Utils folder includes .cpp and .py files (uses also Python for something)</p>
  
  <p>I have python 3.6.1</p>
  
  <blockquote>
    <p>make: *** [all-python2] Error 1</p>
  </blockquote>
  
  <p>Seems it wants python 2.</p>
  
  <p>But I'm not sure if after installing python 2.* and adding it to system variables issue will disappear . Who know for sure?</p>
  
  <p><strong>update</strong></p>
  
  <p>though makefiles has python 3 lines:</p>
  
  <pre><code>SHELL := /bin/bash
  
  .PHONY: all-python2 all-python3
  all-python2:
      pip install runcython
      makecython++ stitch_wrapper.pyx "" "stitch_rects.cpp ./hungarian/hungarian.cpp"
  
  all-python3:
      pip3 install runcython3
      makecython3++ stitch_wrapper.pyx "" "stitch_rects.cpp ./hungarian/hungarian.cpp"
  </code></pre>