Chris Vine <ch...@cvine.freeserve.co.uk> writes: > On Sun, 14 Sep 2014 21:16:39 -0400 > m...@netris.org wrote: >> Federico Beffa <be...@ieee.org> writes: >> >> > Neil Jerram <n...@ossau.homelinux.net> writes: >> > >> >> >> >> This is just a guess, but what happens if you do this: >> >> >> >> $ LD_LIBRARY_PATH=/usr/local/lib /usr/local/bin/guile >> >> >> >> Regards, >> >> Neil >> > >> > With this it works! >> > >> > I notice that there is an /etc/ld.so.cache file. Do I somehow need >> > to update it? >> >> Yes, you update it by running "ldconfig" as root. This needs to be >> done when installing libraries outside of your package manager, not >> only for Guile, but for essentially all packages containing libraries. > > I would not recommend doing that where the OP has two _binary > compatible_ versions of the same library in different prefixes (as he > appears to have), otherwise the one which will be found and linked in > will depend on the dynamic linker's look-up order from > reading /etc/ld.so.conf. This could be the old micro version where in > a given case the OP in fact wants the new one, or conversely the new > micro version where he in fact wants the old one. > > Presumably in the general case he wants the micro version supplied by > the distribution's package manager to be linked in, otherwise he would > simply have replaced that one with the (binary compatible) newer > version of the same library. Presumably also he wants the updated > version which he has installed to be linked in instead only when > specially called. If that is right, he is much better off putting his > updated version in a directory which is _not_ specified > in /etc/ld.so.conf, and invoking it on the occasions when he does not > want the general case to apply by setting the LD_LIBRARY_PATH > environmental variable for that invocation. Then he is guaranteed to > have the correct version loaded in. > > Chris
Your guess is correct: The distribution that I'm using (Debian wheezy) ships 2.0.5 as the newest guile version and I need to keep it to satisfy dependencies of other distribution supplied packages. However, I would like to experiment with a newer version of guile. I will then follow your advice and install it in a different directory. Thanks for all the explanations! Regards, Fede
