[Bug fortran/77903] gfortran 6.1.0/7.0.0 accept invalid code with conflicting module/submodule interfaces

[damian at sourceryinstitute dot org]

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