Hi Wes, > How can I specify this path to g++? I've seen -R used in some places, but g++ doesn't understand it. This is a linker issue, not so much a GCC issue. (Although it would be nice for the GCC tool chain driver to be a little more rpath savvy across platforms.) Try -Wl,-rpath=/path/you/want or consider LD_LIBRARY_PATH=/path/you/want as an environmental to your executable. http://en.wikipedia.org/wiki/Rpath_(linking) I'm not familiar with Ubuntu Linux, so it may do things slightly differently. For instance, I've heard that Ubuntu uses a different /bin/sh shell (dash rather than bash), which results in x100 performance for their shell, and lots of shell impedance mismatch from those who write bash-isms into what probably should be /bin/sh clean. The caveat is: YMMV. The rpath option has a few sharp edges. When used with relative paths, it's a security hole for the wily and devious. If using absolute paths, it makes the application much less mv-able. The LD_LIBRARY_PATH option may necessitate having a user-convenience launching script. That allows your installer to construct the launching script with all the right baked paths for LD_LIBRARY_PATH, or for the really tricky, the launching script may figure out those setting dynamically from how it was launched (using $0). HTH, --Eljay