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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D114304

--- Comment #28 from Tobias Burnus <burnus at gcc dot gnu.org> ---
Created attachment 57896
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=3D57896&action=3Dedit
Testcase

It seems as if 'tabs' cause problems, e.g. for:

 profile_single_file            =3D .true.

where there are two tabs before '=3D'.

* * *

The problem seems to be that the new code uses:

-  eat_spaces (dtp);
   dtp->u.p.comma_flag =3D 0;
+  c =3D next_char (dtp);
+  if (c =3D=3D ' ')
+    {
+      eat_spaces (dtp);

Thus, it explicitly checks for ' ' while eat_spaces handles:

  while (c !=3D EOF && (c =3D=3D ' ' || c =3D=3D '\r' || c =3D=3D '\t'));

Testcase attached.

I think we need at least an "|| c =3D=3D '\t'"; I guess '\r' isn't really r=
equired
here, or is it?=