Reported some before. The warnings are there for a reason, and are
annoying.
Warnings building 2.4.33 Win32 with Visual Studio 15.6.3
libhttpd:
\server\mpm\winnt\mpm_winnt.c(363): warning C4090: 'function':
different 'volatile' qualifiers
\server\mpm\winnt\mpm_winnt.c(1088): warning C4090: 'function':
different 'volatile' qualifiers
\server\core.c(5243): warning C4244: '=': conversion from 'unsigned
long' to 'apr_uint16_t', possible loss of data
\server\config.c(1741): warning C4018: '>=': signed/unsigned mismatch
\server\protocol.c(923): warning C4018: '>=': signed/unsigned mismatch
\server\util.c(420): warning C4018: '<=': signed/unsigned mismatch
\server\util.c(1072): warning C4018: '>=': signed/unsigned mismatch
util_expr_scan.c(1756): warning C4018: '<': signed/unsigned mismatch
\server\util_regex.c(195): warning C4018: '<': signed/unsigned
mismatch
mod_authnz_fcgi:
\modules\aaa\mod_authnz_fcgi.c(616): warning C4267: '-=': conversion
from 'size_t' to 'apr_uint16_t', possible loss of data
\modules\aaa\mod_authnz_fcgi.c(630): warning C4267: '-=': conversion
from 'size_t' to 'apr_uint16_t', possible loss of data
mod_cache_socache:
\modules\cache\mod_cache_socache.c(402): warning C4244: '=':
conversion from 'apr_off_t' to 'apr_size_t', possible loss of data
\modules\cache\mod_cache_socache.c(403): warning C4244: 'function':
conversion from 'apr_off_t' to 'apr_size_t', possible loss of data
\modules\cache\mod_cache_socache.c(404): warning C4244: 'function':
conversion from 'apr_off_t' to 'apr_size_t', possible loss of data
\modules\cache\mod_cache_socache.c(467): warning C4244: 'function':
conversion from 'apr_off_t' to 'apr_size_t', possible loss of data
\modules\cache\mod_cache_socache.c(468): warning C4244: '=':
conversion from 'apr_off_t' to 'apr_size_t', possible loss of data
\modules\cache\mod_cache_socache.c(811): warning C4244: 'function':
conversion from 'apr_off_t' to 'apr_size_t', possible loss of data
\modules\cache\mod_cache_socache.c(812): warning C4244: '=':
conversion from 'apr_off_t' to 'apr_size_t', possible loss of data
\modules\cache\mod_cache_socache.c(1107): warning C4244: 'function':
conversion from 'apr_off_t' to 'unsigned int', possible loss of data
mod_filter:
\modules\filters\mod_filter.c(613): warning C4090: 'function':
different 'const' qualifiers
mod_http2:
\modules\http2\h2_bucket_beam.c(306): warning C4244: 'return':
conversion from 'apr_off_t' to 'apr_size_t', possible loss of data
\modules\http2\h2_bucket_beam.c(1092): warning C4244: 'function':
conversion from 'apr_off_t' to 'apr_size_t', possible loss of data
\modules\http2\h2_filter.c(74): warning C4018: '<=': signed/unsigned
mismatch
\modules\http2\h2_from_h1.c(233): warning C4018: '<': signed/unsigned
mismatch
\modules\http2\h2_mplx.c(975): warning C4018: '>': signed/unsigned
mismatch
\modules\http2\h2_push.c(876): warning C4018: '<': signed/unsigned
mismatch
\modules\http2\h2_push.c(882): warning C4018: '<': signed/unsigned
mismatch
\modules\http2\h2_stream.c(145): warning C4018: '>=': signed/unsigned
mismatch
\modules\http2\h2_stream.c(700): warning C4018: '>': signed/unsigned
mismatch
\modules\http2\h2_stream.c(707): warning C4018: '>': signed/unsigned
mismatch
\modules\http2\h2_util.c(467): warning C4018: '<': signed/unsigned
mismatch
\modules\http2\h2_util.c(1281): warning C4244: 'function': conversion
from 'apr_off_t' to 'apr_size_t', possible loss of data
\modules\http2\h2_util.c(1326): warning C4244: 'function': conversion
from 'apr_off_t' to 'apr_size_t', possible loss of data
\modules\http2\h2_util.c(1431): warning C4244: 'function': conversion
from 'apr_off_t' to 'apr_size_t', possible loss of data
\modules\http2\h2_workers.c(364): warning C4018: '<': signed/unsigned
mismatch
mod_lua:
\modules\lua\lua_request.c(651): warning C4244: 'return': conversion
from 'apr_off_t' to 'int', possible loss of data
\modules\lua\lua_request.c(2129): warning C4244: '=': conversion from
'const apr_uint64_t' to 'unsigned char', possible loss of data
\modules\lua\lua_request.c(2130): warning C4244: '=': conversion from
'const apr_uint64_t' to 'unsigned char', possible loss of data
\modules\lua\lua_request.c(2131): warning C4244: '=': conversion from
'const apr_uint64_t' to 'unsigned char', possible loss of data
\modules\lua\lua_request.c(2132): warning C4244: '=': conversion from
'const apr_uint64_t' to 'unsigned char', possible loss of data
\modules\lua\lua_request.c(2133): warning C4244: '=': conversion from
'const apr_uint64_t' to 'unsigned char', possible loss of data
\modules\lua\lua_request.c(2134): warning C4244: '=': conversion from
'const apr_uint64_t' to 'unsigned char', possible loss of data
\modules\lua\lua_request.c(2198): warning C4244: 'function':
conversion from 'apr_off_t' to '::size_t', possible loss of data
\modules\lua\lua_request.c(2313): warning C4244: '=': conversion from
'apr_uint64_t' to 'apr_size_t', possible loss of data
\modules\lua\lua_request.c(2367): warning C4018: '<': signed/unsigned
mismatch
\modules\lua\lua_request.c(2418): warning C4267: 'initializing':
conversion from 'size_t' to 'apr_uint16_t', possible loss of data
mod_proxy:
\modules\proxy\mod_proxy.c(110): warning C4244: '=': conversion from
'double' to 'int', possible loss of data
mod_proxy_ajp:
\modules\proxy\ajp_header.c(820): warning C4267: '=': conversion from
'size_t' to 'apr_uint16_t', possible loss of data
mod_proxy_balancer:
\modules\proxy\mod_proxy_balancer.c(1205): warning C4244: '=':
conversion from 'double' to 'int', possible loss of data
mod_proxy_fcgi:
\modules\proxy\mod_proxy_fcgi.c(834): warning C4267: '-=': conversion
from 'size_t' to 'apr_uint16_t', possible loss of data
\modules\proxy\mod_proxy_fcgi.c(864): warning C4267: '-=': conversion
from 'size_t' to 'apr_uint16_t', possible loss of data
mod_proxy_http2:
\modules\http2\h2_proxy_session.c(523): warning C4018: '<':
signed/unsigned mismatch
\modules\http2\h2_proxy_session.c(544): warning C4018: '<':
signed/unsigned mismatch
\modules\http2\h2_proxy_session.c(858): warning C4018: '<':
signed/unsigned mismatch
\modules\http2\h2_proxy_session.c(1555): warning C4244: 'function':
conversion from 'apr_off_t' to '::size_t', possible loss of data
\modules\http2\h2_proxy_util.c(485): warning C4018: '<':
signed/unsigned mismatch
mod_proxy_uwsgi:
\modules\proxy\mod_proxy_uwsgi.c(186): warning C4267: '=': conversion
from 'size_t' to 'apr_uint16_t', possible loss of data
\modules\proxy\mod_proxy_uwsgi.c(192): warning C4267: '=': conversion
from 'size_t' to 'apr_uint16_t', possible loss of data
\modules\proxy\mod_proxy_uwsgi.c(199): warning C4267: '=': conversion
from 'size_t' to 'apr_uint16_t', possible loss of data
mod_ratelimit:
\modules\filters\mod_ratelimit.c(246): warning C4244: '-=': conversion
from 'apr_off_t' to 'int', possible loss of data
mod_rewrite:
\modules\mappers\mod_rewrite.c(4353): warning C4018: '>':
signed/unsigned mismatch
mod_socache_memcache:
\modules\cache\mod_socache_memcache.c(227): warning C4244: 'function':
conversion from '__int64' to 'apr_uint32_t', possible loss of data
\modules\cache\mod_socache_memcache.c(403): warning C4244: '=':
conversion from 'apr_interval_time_t' to 'apr_uint32_t', possible loss
of data
mod_ssl:
\modules\ssl\ssl_engine_kernel.c(2415): warning C4018: '<':
signed/unsigned mismatch
mod_substitute:
\modules\filters\mod_substitute.c(283): warning C4018: '<=':
signed/unsigned mismatch
mod_usertrack:
\modules\metadata\mod_usertrack.c(351): warning C4244: '=': conversion
from 'time_t' to 'int', possible loss of data
rotatelogs:
\support\rotatelogs.c(184): warning C4244: 'return': conversion from
'__int64' to 'adjusted_time_t', possible loss of data
