https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61847
kargl at gcc dot gnu.org changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |kargl at gcc dot gnu.org --- Comment #4 from kargl at gcc dot gnu.org --- (In reply to e2cd58e1 from comment #3) > but what I want to do is read in values with point as decimal separator. > Using > > open(unit=1,file='bug.dat', decimal="point") > > doesn't seem to change anything. gfortran's IO for floating point numbers using the operating systems strtof, strtod, and strtold. Are you sure that these functions on yuor OS actual have working locale support?