[PATCH 0/6] unused parameters: the final countdown

After many long sets of patches fixing and annotating existing cases, this is the culminating series that actually turns on -Wunused-parameter in our DEVELOPER=1 builds.

When applied on 'master', everything should compile cleanly with the new warning. There are some new cases introduced in 'next', but I'll send separate patches to go on those individual topics.

The first two patches fix new spots that cropped up since the last round of fixes. Patches 3-5 address compat/ code. And then the interesting one is patch 6.

  [1/6]: gc: mark unused config parameter in virtual functions
  [2/6]: t-reftable-readwrite: mark unused parameter in callback function
  [3/6]: compat: disable -Wunused-parameter in 3rd-party code
  [4/6]: compat: disable -Wunused-parameter in win32/headless.c
  [5/6]: compat: mark unused parameters in win32/mingw functions
  [6/6]: config.mak.dev: enable -Wunused-parameter by default

 builtin/gc.c                        | 16 ++++++++--------
 compat/mingw.c                      | 15 ++++++++-------
 compat/mingw.h                      | 18 +++++++++---------
 compat/nedmalloc/nedmalloc.c        |  2 ++
 compat/regex/regcomp.c              |  2 ++
 compat/stub/procinfo.c              |  2 +-
 compat/win32/headless.c             |  2 ++
 compat/win32/pthread.c              |  2 +-
 compat/win32/pthread.h              |  4 ++--
 compat/win32/syslog.c               |  2 +-
 compat/win32mmap.c                  |  2 +-
 compat/winansi.c                    |  2 +-
 config.mak.dev                      |  1 -
 t/unit-tests/t-reftable-readwrite.c |  2 +-
 14 files changed, 39 insertions(+), 33 deletions(-)

-Peff