Hello Benoit, * Benoit SIGOURE wrote on Fri, Nov 02, 2007 at 10:34:13PM CET: > On GNU/Linux Debian with GCC 4.1 / Debian's libtool 1.5.22-4 > (1.1220.2.365 2005/12/18 22:14:06), I have Boost installed under /usr/ > local/lib (pre-built binaries: http://www.tsunanet.net/~tsuna/ > boost_1_34_1-i486-linux-gcc41.tar.gz) and when I link with `- > lboost_thread-gcc41-mt-1_34_1 -pthread' I can't run the executable > without manually setting LD_LIBRARY_PATH. Shouldn't libtool do > something about this? I know that Boost doesn't come with .la files [...]
Libtool doesn't add run paths to installed libraries without .la files. (How should it know that it should not only add /usr/local/lib, but also /opt/foo/lib because that is needed as well? OK, this question is moot on GNU/Linux, but not on other systems.) You can use -R/usr/local/lib to make libtool add one. > but since /usr/local/lib isn't in sys_lib_search_path_spec, shouldn't > it use -rpath and friends when available/required? > What would be the best solution to handle this issue? Write my own > check to see how to set the rpath (-rpath/-Wl,-rpath/-R/etc.) and > check if linking against -lboost_thread* requires a -rpath or not, > and if it does, automagically add it to BOOST_THREADS_LDFLAGS? That > sounds tedious. And how is it going to work on, say, OSX, where > there is no -rpath/-R? OS X is not so much a problem because it remembers the location of the library that was linked against at link edit time. > Moreover, I don't see how to do such a check > while preserving cross-compilation capabilities (since checking > whether -rpath works or not requires to run the binary somehow, > doesn't it? You don't need to, AC_PROG_LIBTOOL does that for you. > Or maybe analyzing the output of `ldd'? AC_PROG_LIBTOOL does that for you, too, on GNU/Linux. Query by eval `${LIBTOOL} --config | grep "^sys_lib_search_path_spec="` > But it surely isn't something standard, for instance on OSX it's > `otool -L' and it requires the package odcctools...). Hmm, I don't think we do that, but what would it be good for? Cheers, Ralf _______________________________________________ http://lists.gnu.org/mailman/listinfo/libtool