97,98c97,99
< if subprocess.Popen("gm4 --version", shell=True, stdout=subprocess.PIPE,
< stderr=subprocess.STDOUT, close_fds=True).communicate()[0].find('GNU') >= 0:
---
> subp = subprocess.Popen("gm4 --version", shell=True, stdout=subprocess.PIPE,
> stderr=subprocess.STDOUT, close_fds=True)
> if subp.communicate()[0].find('GNU') >= 0:
103c104,105
< print "Error: Can't find version of M4 macro processor. Please install M4 and try again."
---
> print "Error: Can't find version of M4 macro processor. " + \
> "Please install M4 and try again."