Paul, thanks a lot, I will try approach [1] first. It will take ma few hours as I need to recompile a lot of stuff on a busy obsolete computer. I will post an update. Thank you.,
i On Wed, 31 Jan 2007 07:26:27 -0800, Paul Pluzhnikov <[EMAIL PROTECTED]> wrote: > 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. > > _______________________________________________ help-gplusplus mailing list help-gplusplus@gnu.org http://lists.gnu.org/mailman/listinfo/help-gplusplus
