http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54797
Bug #: 54797 Summary: Gnu Fortran compiler does not recognize module file it created Classification: Unclassified Product: gcc Version: 4.6.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: fortran AssignedTo: unassig...@gcc.gnu.org ReportedBy: christopher.rom...@gmail.com I am trying to compile a library of module files using make for use later in codes, that may require mpi or on earlier created modules. I have tested the compilation with pgfortran and intel compilers on linux with open-mpi 1.4.5 and it works perfectly. I have additionally tested it on linux using open-mpi 1.4.5 and gfortran 4.2.1 and on Mac OSx 10.6 with open-mpi 1.4.3 and gfortran 4.6, with both failing with the following error: Fatal Error: File 'odesoldat.mod' opened at (1) is not a GFORTRAN module file I have checked to make sure that I throughly cleaned the folders to make sure the module file as well as the object file are deleted prior to compilation. I am using the following compilation flags: FLAGS = -O3 -fdefault-real-8 -fdefault-double-8 -J $(MODULE) If anyone has insights they would be most welcome.