I would like to rebuild tests/testsuite.dir/0629 with --save-temps on, so that I can debug into the C file to understand why I'm seeing a segfault in the trace facility. How do I do that? If the automatic test system is documented, I missed it, for sure. Also, I want to report the tests are linked to the installed library, not the libcob.so that's in the build tree: $ pwd && ldd ./prog | grep libcob [...]/build/tests/testsuite.dir/0629 libcob.so.4 => /usr/local/lib/libcob.so.4 (0x00007f816ed2c000) That's less than ideal. Anyone running "make check" that way before installing is getting a false positive/negative. (Actually, per above, the tests should fail to link if the version has changed.) My workaround has been to use LD_PRELOAD to force use of the in-tree library. The solution would seem to be to either do that automatically during the running of tests (which might be done; I don't know) or to set the RPATH to use the in-tree library. --jkl