Geany-plugins FTBFS if python2-dev package is not installed. This is the
message that appears during the build process:
Could not link test program to Python. Maybe the main Python library has been
installed in some non-standard library path. If so, pass it to configure,
via the LIBS environment variable.
Example: ./configure LIBS="-L/usr/non-standard-path/python/lib"
You probably have to install the development version of the Python package
for your distribution. The exact name of this package varies among them.