[Debian-med-packaging] Bug#660309: tophat: broken code in configure script for determining CFLAGS

[peter green]

> * I have not determined exactly how it is broken but it seems to be 
> passing on all architectures. My suspsicion is the CFLAGS set before 
> the test aren't actually being used.
Furthermore even if the -m64 test were to be fixed it should not be used 
in debian as on some systems it may be accepted in a simple test but 
cause inappropriate binaries to be built and/or cause failures to find 
libraries. If a debian architecture is supposed to have normal binaries 
be 64-bit then it will have a compiler that generates 64-bit binaries by 
default.