Hi, I'm trying out boost 1.34 and running into some troubles getting my test programs to link. They were working fine with 1.33.1, and rebuilding with 1.34 now fails to find "main" in the boost unit test framework library. After a little investigation, I found that the .so does not have main() in it, but the .a does. System: suse linux 9.1 compiler: g++ 3.3.3 boost version: 1.34 I built boost by simply issuing: ./configure && make && make install I've searched for hints what may have changed or why it's no longer working (that is, what I'm doing wrong) but I just don't see any relevant documentation. The most suspicious part is the difference from the shared library and the archive file. $ nm -a /usr/local/lib/libboost_unit_test_framework-gcc33-mt-d.so | grep main 00077498 d DW.ref._ZTISt12domain_error 000582b8 t _GLOBAL__I__ZN5boost9unit_test49_GLOBAL__N_libs_test_src_unit_test_main.cppiMDvta17results_collectorE 00000000 a unit_test_main.cpp 00057f68 T _ZN5boost9unit_test14unit_test_mainEPFbvEiPPc 00082bd0 B _ZN5boost9unit_test49_GLOBAL__N_libs_test_src_unit_test_main.cppiMDvta17results_collectorE 00077408 V _ZTISt12domain_error 000727b8 V _ZTSSt12domain_error $ $nm -a /usr/local/lib/libboost_unit_test_framework-gcc33-mt-d.a | grep main 00000000 V _ZTISt12domain_error 00000000 V _ZTSSt12domain_error unit_test_main.o: 000002bc t _GLOBAL__I__ZN5boost9unit_test49_GLOBAL__N_libs_test_src_unit_test_main.cpprMsLbd17results_collectorE 00000210 T main 00000000 a unit_test_main.cpp 00000000 T _ZN5boost9unit_test14unit_test_mainEiPPc 00000000 B _ZN5boost9unit_test49_GLOBAL__N_libs_test_src_unit_test_main.cpprMsLbd17results_collectorE $ For a simple example: #define BOOST_TEST_MAIN #include <boost/test/unit_test.hpp> BOOST_AUTO_TEST_CASE(mytest) { } $g++ mytest.cpp -I $BOOST_HDRDIR -L $BOOST_ROOT/lib -lboost_unit_test_framework-gcc33-mt-d /usr/lib/gcc-lib/i586-suse-linux/3.3.3/../../../crt1.o(.text+0x18): In function `_start': ../sysdeps/i386/elf/start.S:98: undefined reference to `main' collect2: ld returned 1 exit status Suggestions welcome. Thanks. Chris