https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109662
--- Comment #12 from Jerry DeLisle <jvdelisle at gcc dot gnu.org> ---
A additional adjustment to reject the semi-colon always.
diff --git a/libgfortran/io/list_read.c b/libgfortran/io/list_read.c
index 78bfd9e8787..db3330060ce 100644
--- a/libgfortran/io/list_read.c
+++ b/libgfortran/io/list_read.c
@@ -3598,9 +3598,9 @@ find_nml_name:
/* A trailing space is required, we allow a comma with std=gnu. */
c = next_char (dtp);
- if (c == ',' && !(compile_options.allow_std & GFC_STD_GNU))
+ if ((c == ',' && !(compile_options.allow_std & GFC_STD_GNU)) || c == ';')
generate_error (&dtp->common, LIBERROR_READ_VALUE,
- "Comma after namelist name not allowed");
+ "Non blank after namelist name not allowed");
if (!is_separator(c) && c != '!')
{
