https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77903
--- Comment #4 from Damian Rouson <damian at sourceryinstitute dot org> --- Check the date on your draft. The latest draft is dated 31 August 2016. C1556 appears on page 330. Does the following link work for you? http://j3-fortran.org/doc/year/16/16-007.pdf I'm working on obtaining a publicly accessible link in case the above one doesn't work. Damian