http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53600
Bug #: 53600 Summary: Fatal Error: Can't open module file 'omp_lib.mod' for reading at (1). Classification: Unclassified Product: gcc Version: 4.6.2 Status: UNCONFIRMED Severity: normal Priority: P3 Component: libgomp AssignedTo: unassig...@gcc.gnu.org ReportedBy: pascu...@me.com I was able to successfully install the family of gcc compiles in Cygwin. I tried to compile a Fortran90 code with the option -fopenmp and I got the following error message (the program uses OpenMP directives): Fatal Error: Can't open module file 'omp_lib.mod' for reading at (1). No such file or directory Thank you very much for all your help.