[Bug preprocessor/66871] New: .incbin in .S files does not appear in automatically generated dependencies

[dwmw2 at infradead dot org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66871

            Bug ID: 66871
           Summary: .incbin in .S files does not appear in automatically
                    generated dependencies
           Product: gcc
           Version: 5.1.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: preprocessor
          Assignee: unassigned at gcc dot gnu.org
          Reporter: dwmw2 at infradead dot org
  Target Milestone: ---

$ cat foo.S
.incbin "foo.bin"
$ gcc -Wp,-MD,foo.d -o foo.o -c foo.S
$ cat foo.d
foo.o: foo.S /usr/include/stdc-predef.h
$

Why is 'foo.bin' not included in the dependencies?