Found at c.l.f where Giorgio Pastore reported it. http://groups.google.com/group/comp.lang.fortran/browse_thread/thread/a48b6b038baabd90
gfortran -std=f95 does not detect the following: interface function square (x) result (s) real,intent (in) ::x real ::s end function square end interface real :: square ! <<<<<<<<<< Wrong! ifort prints: error #6409: This name has already been used as an external procedure name. [SQUARE] real :: square And NAG f95: Error: hjff.f90, line 24: Multiply defined symbol SQUARE detected at ::@SQUARE Error: hjff.f90, line 24: Duplicate type declaration for SQUARE detected at ::@SQUARE -- Summary: Double typing of function results not detected Product: gcc Version: 4.4.0 Status: UNCONFIRMED Keywords: accepts-invalid Severity: normal Priority: P3 Component: fortran AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: burnus at gcc dot gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39996