Super-fine control of LDFLAGS

[Theodore Sternberg]

Even after doing all I can with AM_LDFLAGS and LDADD, my link line isn't 
quite right.  Is there any way to just tell autoconf, "look, whatever you 
come up with for LDFLAGS, pass it through this here sed script" -- or 
something like that?

This is on a 64-bit Linux Opteron, and the problem is that autoconf is 
trying to link to the libstdc++.so that's in lib, instead of the one in 
lib64.  Every 64-bit system seems to have a different idea about where to 
put its 32-bit vs 64-bit libraries and for all I know this one is "wrong".  
Be that as it may, however, it's not so wrong that I can't build on it 
with hand-written Makefiles; I'd therefore like to be able to use autoconf 
there too.

Ted Sternberg
Lawrence Berkeley Laboratory