Pycryptopp Gives Cryptic (pun intended) error message when it can't find g++

[arch_o_median]

The following was generated by: python setup.py install:

{{{"""
Running pycryptopp-0.5.15/setup.py -q bdist_egg --dist-dir /tmp/easy_install-p2hE68/pycryptopp-0.5.15/egg-dist-tmp-8gF_HB

darcs failed: Not a repository: . (./_darcs/inventory: openBinaryFile: does not exist (No such file or directory))
setup.py darcsver: Failure from attempt to find version tags with 'darcs changes', and pycryptopp/_version.py already exists, so leaving it alone.
gcc: error trying to exec 'cc1plus': execvp: No such file or directory
error: Setup script exited with error: command 'gcc' failed with exit status 1"""}}}