Hello, I am having some problems with libstdc++, can anybody help? My programme compiles and links fine using a RHEL3 PC, gcc 3.4 with libstdc++.so.5. It runs reasonably well and I am happy. I have just changed my laptop (different from PC above) from RHEL3 to ubuntu as everything about it looks and feels nicer. However, ubuntu ships with libstdc++.so.5 and libstdc++.so.6, both in /usr/lib. I have got gcc 3.4. My code compiles under ubuntu, but it is linking the libstdc++.so.6 into everything instead of libstdc++.so.5. This causes me great problems and my programme dies almost straight away. I use 3rd party open-source software which relies on libstdc++.so.5 and I will need to run it on the RHEL3 machine mentioned before, that only has libstdc++.so.5. Does anybody know what flag I need to set in my Makefile to get everything linked with libstdc++.so.5? I can't have any trace of libstdc ++.so.6, 'ldd me.exe | grep libstdc++.so.6' has to come up blank. The output, using -v, looks like this: Lambda.o HistoCorrectLambda.o -lkernlib -lgrafX11 -lKtEvent -lCLHEP-2.0.3.1 -lCore -lCint -lHist -lGraf -lGraf3d -lGpad -lTree -lRint -lPostscript -lMatrix -lPhysics -ldl -lstdc++ -lm -lgcc_s -lgcc -lpthread -lc -lgcc_s -lgcc /usr/lib/gcc/i486-linux-gnu/3.4.6/crtend.o /usr/lib/gcc/i486-linux-gnu/3.4.6/../../../../lib/crtn.o /usr/bin/ld: warning: libstdc++.so.5, needed by /usr/lib/libCLHEP-2.0.3.1.so, may conflict with libstdc++.so.6 I think that I need to set what -lstdc++ is pointing to, but I don't know how to do this. Thanks in advance, John
