b

#! /bin/bash

waf=waf-2.0.18
p2=${PYTHON:-${PYTHON2:-python2.7}}
p3=${PYTHON3:-python3}


# try Pythons which can load waf

if $p2 $waf --help &> /dev/null; then
    $p2 $waf $@
elif $p3 $waf --help &> /dev/null; then
    $p3 $waf $@

# waf can't be loaded, print the error with available Python

elif which $p2 &> /dev/null; then
    $p2 $waf $@
elif which $p3 &> /dev/null; then
    $p3 $waf $@

# no Python available

else
    echo Required Python 2.7 or 3
    exit 1
fi