/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/crt1.o: In function `_start':
(.text+0x20): undefined reference to `main'
/tmp/ccPnREzI.o: In function `SPSATest::SimpleSPSATestFunction::test_method()':
spsa_test.cpp:(.text+0x516): 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>)'
spsa_test.cpp:(.text+0x629): 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>)'
spsa_test.cpp:(.text+0x752): 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>)'
spsa_test.cpp:(.text+0x87b): 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>)'
/tmp/ccPnREzI.o: In function `__static_initialization_and_destruction_0(int, int)':
spsa_test.cpp:(.text+0x12d7): undefined reference to `boost::unit_test::ut_detail::auto_test_unit_registrar::auto_test_unit_registrar(boost::unit_test::basic_cstring<char const>)'
spsa_test.cpp:(.text+0x1332): undefined reference to `boost::unit_test::ut_detail::auto_test_unit_registrar::auto_test_unit_registrar(boost::unit_test::test_case*, unsigned long)'
spsa_test.cpp:(.text+0x134d): undefined reference to `boost::unit_test::ut_detail::auto_test_unit_registrar::auto_test_unit_registrar(int)'
/tmp/ccPnREzI.o: In function `boost::unit_test::unit_test_log_t::unit_test_log_t()':
spsa_test.cpp:(.text._ZN5boost9unit_test15unit_test_log_tC2Ev[_ZN5boost9unit_test15unit_test_log_tC5Ev]+0x25): undefined reference to `vtable for boost::unit_test::unit_test_log_t'
/tmp/ccPnREzI.o: In function `boost::unit_test::make_test_case(boost::unit_test::callback0<boost::unit_test::ut_detail::unused> const&, boost::unit_test::basic_cstring<char const>)':
spsa_test.cpp:(.text._ZN5boost9unit_test14make_test_caseERKNS0_9callback0INS0_9ut_detail6unusedEEENS0_13basic_cstringIKcEE[_ZN5boost9unit_test14make_test_caseERKNS0_9callback0INS0_9ut_detail6unusedEEENS0_13basic_cstringIKcEE]+0x42): undefined reference to `boost::unit_test::ut_detail::normalize_test_case_name[abi:cxx11](boost::unit_test::basic_cstring<char const>)'
spsa_test.cpp:(.text._ZN5boost9unit_test14make_test_caseERKNS0_9callback0INS0_9ut_detail6unusedEEENS0_13basic_cstringIKcEE[_ZN5boost9unit_test14make_test_caseERKNS0_9callback0INS0_9ut_detail6unusedEEENS0_13basic_cstringIKcEE]+0x7c): 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&)'
/tmp/ccPnREzI.o: In function `boost::unit_test::unit_test_log_t::~unit_test_log_t()':
spsa_test.cpp:(.text._ZN5boost9unit_test15unit_test_log_tD2Ev[_ZN5boost9unit_test15unit_test_log_tD5Ev]+0xd): undefined reference to `vtable for boost::unit_test::unit_test_log_t'
/tmp/ccPnREzI.o: In function `bool boost::test_tools::tt_detail::check_frwd<boost::test_tools::check_is_small_t, double, double>(boost::test_tools::check_is_small_t, boost::unit_test::lazy_ostream const&, boost::unit_test::basic_cstring<char const>, unsigned long, boost::test_tools::tt_detail::tool_level, boost::test_tools::tt_detail::check_type, double const&, char const*, double const&, char const*)':
spsa_test.cpp:(.text._ZN5boost10test_tools9tt_detail10check_frwdINS0_16check_is_small_tEddEEbT_RKNS_9unit_test12lazy_ostreamENS5_13basic_cstringIKcEEmNS1_10tool_levelENS1_10check_typeERKT0_PSA_RKT1_SH_[_ZN5boost10test_tools9tt_detail10check_frwdINS0_16check_is_small_tEddEEbT_RKNS_9unit_test12lazy_ostreamENS5_13basic_cstringIKcEEmNS1_10tool_levelENS1_10check_typeERKT0_PSA_RKT1_SH_]+0x176): undefined reference to `boost::test_tools::tt_detail::check_impl(boost::test_tools::predicate_result const&, boost::unit_test::lazy_ostream const&, 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, ...)'
collect2: error: ld returned 1 exit status