(with one small bugfix in bgen/bgen/scantools.py)

This replaces string module functions with string methods
for the stuff in the Tools directory. Several uses of
string.letters etc. are still remaining.

"""
When there are additional Setup files, specified by -e option of freeze,
checkextenstions.py assumes that *.o, *.a, -Lpath, and -Rpath are all
relative to where the Setup file is. select() inserts the path to the
Setup file to make them absolute. However, the assumption is not true.
There are cases that absolute paths are specified for them. The inserted
prefix, by select(), results in error.

The following fix check for absolute paths. The assumption is: an
absolute path begins with either '/' or '$'. In the latter case, it is
from the environmental variable. (Variables defined locally in the Setup
file have already been handled by expandvars())
"""

My version of the patch has been verified by Charles Waldman (a
colleague of Chih-Hao).

contain multiple words, all of which may have to be joined with the
path of the extension directory.
(Sjoerd)

Setup file are fixed so that they will work from the freeze build
directory.  However, relative path names in liner -L and -R options
are not fixed in this way.
(Sjoerd Mullender)