w32: Avoid a few compiler warnings.
* cipher/cipher-selftest.c (_gcry_selftest_helper_cbc) (_gcry_selftest_helper_cfb, _gcry_selftest_helper_ctr): Mark variable as unused. * random/rndw32.c (slow_gatherer): Avoid signed pointer mismatch warning. * src/secmem.c (init_pool): Avoid unused variable warning. * tests/random.c (writen, readn): Include on if needed.
(cherry picked from commit e97c62a4a687b56d00a2d0a63e072a977f8eb81c)
Resolved conflicts:
tests/gchash.c - Remove.
- Signed-off-by: Werner Koch <wk@gnupg.org>