function. For Location: following.

sourcedir if we're not using $(srcdir) properly.

find a case in which we need to remove this flag, we should most likely
write a configure check that detects when this flag is needed and when its
not.

basic ./ and ../ strip-off understanding, and this change introduces with.
test cases 49 - 52 test this.

when it can't lookup the name (at least in some cases) and thus we need
to make an extra check to detect failures.

environment variables or anything. Setting it to NULL disables proxy as well,
but allows the environment variables to kick in and be used.

memory as otherwise we (might) leak memory