Hello,

When building gdb version 8.2 on GNU/Hurd several problems arise that need to be
solved. One problem is that most files in gdb/ have sloppy definitions of struct
thread_info, causing a build stop fore every occurrence. They are excluding the
struct part, making the build (and port) on Hurd very cumbersome. Can you please
fix all bad references to thread_info upstream? I don't really understand how
gcc can let these errors pass on GNU/Linux.

Attached are a lot of patches and files fixing these problems, 61 in total. A
test build of Debian version gdb-8.2-1 on GNU/Linux with the attached patches
(and patched files) applied works fine! 

Furthermore the script gdbarch.sh needs patching and the resulting files
gdbarch.{c,h} are used in the Linux build. They are not included here due to
size constraints. The generated file target-delegates.c was also used after
patching target.h and generating it with: make-target-delegates target.h >
target-delegates.c. Not included here either, also due to size constraints.

Attached are also four old patches needed to build the 8.1 version of gdb:
gdb_configure.nat.patch
gdb-PATH_MAX.patch
gnu-nat.c.patch
struct-thread_info.patch
and a very old Debian PATH_MAX patch: solve_PATH_MAX_issue.patch. Includes is
also the original and new Debian 8.2-1 patch file: series.

More patches will be needed for a successful port of gdb-8.2 to GNU/hurd, but
please fix the above problems upstream first.

Thanks!