compilers to warn

extra lib is used to prevent compiler warnings ("variable set but not used")
on that case

assume that the curl file is a proper binary, it is often a script file
produced by libtool.

pointer!

overflow on 32bit filesize-systems

render a build impossible

are transfered. The maximum size we support now is 8 exabytes, which equals
to 8192 petabytes...

from 64 bit types to 32 bit ones

returns and uses as input and converting to signed generates warnings and
actually risks loss of accuracy

enabled builds

for the return code

ones use this too...

for a reason I don't know

out of memory (thanks to 'runtests.pl -t')