Pierre-Jules Tremblay wrote:
Noah,
Your language and tone are abusive. Gennadiy is not saying that you are not seeing a problem: he is telling you what is the only possible reason why you are seeing this problem (and he is right).
There are two things you can try:
1) tell us what platform and compiler you use, print out the linker command issued by your build system and let us see it, and ask nicely for help.
g++ -I../include -g -O2 -lboost_unit_test_framework-s -o commands commands.o command.o commands.o: In function `test_construct()': /home/nroberts/projects/ai/wumpus2/tests/commands.cpp:11: undefined reference to `boost::test_tools::tt_detail::check_impl(boost::test_tools::predicate_result const&, boost::basic_wrap_stringstream<char>&, boost::unit_test::basic_cstring<char const>, unsigned long, boost::test_tools::tt_detail::tool_level, boost::test_tools::tt_detail::check_type, unsigned long, ...)' #include <boost/test/unit_test.hpp> /* * Upgrade of boost changed something. I can't get it to link correctly. * Going to have to forego the standard unit tests until I can get help * from the boost list. */ void test_construct() { BOOST_CHECK(false); } using namespace boost::unit_test; test_suite * init_unit_test_suite(int,char**) { test_suite * test = BOOST_TEST_SUITE("wumpus commands"); test->add(BOOST_TEST_CASE(&test_construct)); return test; } Change BOOST_CHECK to BOOST_ASSERT and I get this output: g++ -I../include -g -O2 -lboost_unit_test_framework-s -o commands commands.o command.o make[2]: Leaving directory `/home/nroberts/projects/ai/wumpus2/tests' make check-TESTS make[2]: Entering directory `/home/nroberts/projects/ai/wumpus2/tests' Running 1 test case... commands: commands.cpp:11: void test_construct(): Assertion `false' failed. *** No errors detected PASS: commands ================== All 1 tests passed ================== I do hope that ends the debate on whether I am linking to the unit test framework library. This is the library I've used in past versions of boost (minus the -s). I've simply asked if there is a different library I need to link to since this one quite obviously does NOT have the definition I need. Platform is Gentoo Linux 64, g++ 4.1.1. If someone needs more information that will help figure out what the problem is instead of saying it doesn't exist, I will be *more* than happy to provide it. *-s is being used because the library I used to link to, without the -s, complains that main is undefined and fails to link. "-s" means static apparently and it is, indeed, a static library on my system. Here is a listing in case you don't believe me: /usr/lib/libboost_unit_test_framework-mt-s.a /usr/lib/libboost_unit_test_framework-mt.so /usr/lib/libboost_unit_test_framework-s.a /usr/lib/libboost_unit_test_framework.so Perhaps later I can look into the build process that was used to build boost. I did use portage. If, indeed, that symbol is supposed to be found in this library then something went wrong somewhere either in portage or in the jam system. I saw nothing off hand in the emerge script that would do anything weird but perhaps I missed something. BTW, if I don't tell the linker to link to this library specifically I do get the expected output of: g++ -I../include -g -O2 -o commands commands.o command.o /usr/lib/gcc/x86_64-pc-linux-gnu/4.1.1/../../../../lib64/crt1.o: In function `_start': init.c:(.text+0x20): undefined reference to `main' commands.o: In function `init_unit_test_suite(int, char**)': /home/nroberts/projects/ai/wumpus2/tests/commands.cpp:18: undefined reference to `boost::unit_test::test_suite::test_suite(boost::unit_test::basic_cstring<char const>)' commands.o: In function `init_unit_test_suite(int, char**)': /usr/include/boost/test/unit_test_suite_impl.hpp:247: undefined reference to `boost::unit_test::ut_detail::normalize_test_case_name(boost::unit_test::basic_cstring<char const>)' /usr/include/boost/test/unit_test_suite_impl.hpp:247: undefined reference to `boost::unit_test::test_case::test_case(boost::unit_test::basic_cstring<char const>, boost::unit_test::callback0<boost::unit_test::ut_detail::unused> const&)' commands.o: In function `init_unit_test_suite(int, char**)': /home/nroberts/projects/ai/wumpus2/tests/commands.cpp:19: undefined reference to `boost::unit_test::test_suite::add(boost::unit_test::test_unit*, unsigned long, unsigned int)' commands.o: In function `unit_test_log_t': /usr/include/boost/test/unit_test_log.hpp:126: undefined reference to `vtable for boost::unit_test::unit_test_log_t' commands.o: In function `test_construct()': /home/nroberts/projects/ai/wumpus2/tests/commands.cpp:11: undefined reference to `boost::unit_test::unit_test_log_t::set_checkpoint(boost::unit_test::basic_cstring<char const>, unsigned long, boost::unit_test::basic_cstring<char const>)' /home/nroberts/projects/ai/wumpus2/tests/commands.cpp:11: undefined reference to `boost::test_tools::tt_detail::check_impl(boost::test_tools::predicate_result const&, boost::basic_wrap_stringstream<char>&, boost::unit_test::basic_cstring<char const>, unsigned long, boost::test_tools::tt_detail::tool_level, boost::test_tools::tt_detail::check_type, unsigned long, ...)' commands.o: In function `unit_test_log_t': /usr/include/boost/test/unit_test_log.hpp:126: undefined reference to `vtable for boost::unit_test::unit_test_log_t' collect2: ld returned 1 exit status