inner block not inside outer block

[Eli Zaretskii <eliz@elta.co.il>]

I've just compiled GDB 6.0 with DJGPP (patches to fix what was broken
to follow shortly) using GCC 3.3.2, and while trying the classic
"break main; run" test in GDB debugging itself, I see several messages
like this:

   During symbol reading, inner block not inside outer block in internal_vproblem 
   During symbol reading, inner block (0x1-0xffe289b8) not inside outer block (0x11b09a-0x11b2e0)
   During symbol reading, block at 0x1 out of order

I've read the description of these messages in the manual, which seems
to say that, as a user, I shouldn't worry about them.  What I'm not
sure about is what should I do as a _GDB_maintainer_.  Is this a GDB
bug? a GCC bug? something specific to the DJGPP port of either or both
of them? something else?  Should I report that somewhere or is it a
known problem?

(In case it matters, this GDB was compiled with DWARF-2 debug info.)

TIA