9d32204790dc073265db41a8ed9cad08811f1518 Ensure that -lpthread is statically linked under MinGW.

================================ DYNARE MAKE CHECK MATLAB RESULTS ================================ | TOTAL: 435 | PASS: 432 | FAIL: 1 | XFAIL: 2 | XPASS: 0 | LIST OF FAILED TESTS: | * expectations/expectation_nested.mod

================================ DYNARE MAKE CHECK OCTAVE RESULTS ================================ | TOTAL: 433 | PASS: 430 | FAIL: 1 | XFAIL: 2 | XPASS: 0 | LIST OF FAILED TESTS: | * expectations/expectation_nested.mod

A full log can be found on karaba in '/tmp/dynare-master-check-fVDd6g4pGA.log'.