http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60781
--- Comment #9 from Steve Kargl <sgk at troutmask dot apl.washington.edu> --- > > Is this what you meant by the 'curly quotes'? > No. Your input file contains curly quotes. I've changed the curly quotes to # show you where the problem lies. met_file = #met_04270_62_65.txt# Compare the quoting for vegh_file and met_file. You need to use ASCII character 39. Looks like your input file is using extended ASCII characters 145 and 146. gfortran is expected ASCII not extended ASCII.