I compile it as gfortran MyTest.f90 -o MyTest -llapack -lblas. I don't get any errors (it says "compilation finished"), but the output file doesn't print anything (neither the strings, or the variable info). If I comment the "CALL DGESV" line, it does print everything (with info=0, of course).
32 bit or 64 bit Cygwin? Works for me, I get $ gfortran MyTest.f90 -o MyTest -llapack -lblas $ ./MyTest Printing the results 0 End printing So no "compilation finished" message. Might you have some other version of gfortran on your path? I believe cygcheck.out would list some of this information. Other things to check: which -a gfortran which -a cygblas-0.dll -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple