Ignoramus20785 <[EMAIL PROTECTED]> writes: > We have an app that we compile on FC5 (Fedora Core 5) using g++ from > GCC 4.1.1. > > When we copy our app to a FC3 server, to run it, we get this error:
This is expected. Unlike Win32, UNIX systems generally support *only* backward compatibility: programs compiled on an older system continue to run on a newer one (i.e. compile on FC3, run on FC5, and it will work). > What can I do to get C++ apps compiled on FC5 to run on FC3? The answer is: compile on the lowest OS release instead. If there is a good reason why you can't, then you have to get rid of libstdc++.so.6 and libgcc_s.so.1 dependency [1], or you have to arrange for FC5 libraries to be used on the FC3 system [2]. For [1], do this: ln -sf $(g++ --print-file-name=libstdc++.a) . g++ -static-libgcc -o exe main.o ... -L. rm libstdc++.a # exe now has libgcc.a and libstdc++.a statically linked in. For [2], do this: g++ -o exe main.o ... -Wl,-rpath='$ORIGIN' Now copy 'exe' and libgcc_s.so.1 and libstdc++.so.6 into the same directory on FC3. Note that either solution may work, but is not at all guaranteed to work. Also, a slight modification to source may break it again -- there are symbols in FC5 libc, which are not present in FC3 libc, and if you introduce any code that depends on these, you are screwed. Cheers, -- In order to understand recursion you must first understand recursion. Remove /-nsp/ for email. _______________________________________________ help-gplusplus mailing list help-gplusplus@gnu.org http://lists.gnu.org/mailman/listinfo/help-gplusplus
