We list a lot of library initialization functions at http://gcc.gnu.org/onlinedocs/gfortran/Non_002dFortran-Main-Program.html however, _gfortran_set_fpe(int) is missing.
Currently, it is set via -ffpe-trap=<*> Possible values are: /* Bitmasks for the various FPE that can be enabled. */ #define GFC_FPE_INVALID (1<<0) #define GFC_FPE_DENORMAL (1<<1) #define GFC_FPE_ZERO (1<<2) #define GFC_FPE_OVERFLOW (1<<3) #define GFC_FPE_UNDERFLOW (1<<4) #define GFC_FPE_PRECISION (1<<5) -- Summary: Document set_fpe(int) Product: gcc Version: 4.5.0 Status: UNCONFIRMED Keywords: documentation 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=40961