The following (see below) test programm compiles under both 1.34.1 and 1.35.0; if linked against 1.35.0 it produces the following error message: Running 1 test case... A unknown location(0): fatal error in "test_call_system": child has exited; pid: 1000; uid: 16129; exit value: 0 *** 1 failure detected in test suite "Master Test Suite" With 1.34.1, no errors are found: Running 1 test case... A *** No errors detected Test program: #define BOOST_AUTO_TEST_MAIN "test-bug" #include <boost/test/auto_unit_test.hpp> BOOST_AUTO_TEST_CASE(test_call_system) { system("echo A"); } Yes, that's it! A single and simple system()-call. (I use these to setup/teardown my test environment; i.e. I create and remove a directory here, really. If there is a better way to do that: hints welcome!) Compiled with gcc 4.1.2 (SLES Linux 10), g++ -I/3rdparty/boost_1_34_1/include/boost-1_34_1 \ -L/3rdparty/boost_1_34_1/lib \ -lboost_unit_test_framework-gcc41 \ -DBOOST_TEST_DYN_LINK \ test.cpp Best regards Christoph