https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66709
--- Comment #1 from Gerhard Steinmetz <gerhard.steinmetz.fort...@t-online.de> --- Whereas versions without "parameter" compile and run fine : $ cat z_wr_fmt_ice_4.f90 program p character(4) :: fmt(1) = '(i8)' integer :: n read (*, fmt=fmt) n write (*, fmt=fmt) n end $ cat z_wr_fmt_ice_6.f90 program p character(1) :: fmt(4) = ['(', 'i', '8', ')'] integer :: n read (*, fmt=fmt) n write (*, fmt=fmt) n end