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Compilation problem


I have a project that has two parts, a server and a client, that we're 
trying to port to Linux.  We need to compile the server on a newer version 
of Linux, so we're using RedHat 6.0.  However, we want to compile the client 
so that it runs on older versions of Linux as well.  The odd twist in all of 
this is that we need to be able to compile for both versions of Linux from 
the same source tree, on the same computer, without dual-booting.

The decision was made to compile on RedHat 6.0, so that's what we're using 
for the build machine.  What I tried to do so far is to copy the compiler 
executables from a RedHat 5.2 machine (gcc-2.7) and use the --nostdinc and 
--nostdlib options.  I then copied over the necessary header and library 
files.  It did finally compile using that setup, but when I try to run the 
executables on a RedHat 5.2 machine it seg faults on startup.  My guess is 
that it's still linking against something on the RedHat 6.0 machine that's 
causing the problem.

I did notice that even though I used the --nostdlib options, if I used 
-lpthread it would still link ok.  I don't have libpthread in any of the 
directories that I list during compilation using -L, so I guess that it is 
still picking up some system stuff from the build machine.  I tried copying 
libpthread from the RedHat 5.2 machine and putting it in one of the listed 
paths, but it didn't fix the problem.

Has anybody tried something similar to this and gotten it to work?


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