U:\perlbuild\tools>cl
Microsoft (R) C/C++ Optimizing Compiler Version 17.00.50727.1 for x64
Copyright (C) Microsoft Corporation.  All rights reserved.

usage: cl [ option... ] filename... [ /link linkoption... ]

U:\perlbuild\tools>

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conversion from 'IV' to 'DWORD', possible loss of data
conversion from 'IV' to 'I32', possible loss of data
conversion from 'IV' to 'U32', possible loss of data
conversion from 'IV' to 'const I32', possible loss of data
conversion from 'IV' to 'const U32', possible loss of data
conversion from 'IV' to 'const int', possible loss of data
conversion from 'IV' to 'int', possible loss of data
conversion from 'IV' to 'volatile U32', possible loss of data
conversion from 'PADOFFSET' to 'I32', possible loss of data
conversion from 'PADOFFSET' to 'U32', possible loss of data
conversion from 'SOCKET' to 'int', possible loss of data
conversion from 'STRLEN' to 'NV', possible loss of data
conversion from 'UINT_PTR' to 'UINT', possible loss of data
conversion from 'UV' to 'I32', possible loss of data
conversion from 'UV' to 'NV', possible loss of data
conversion from 'UV' to 'U32', possible loss of data
conversion from 'UV' to 'const unsigned int', possible loss of data
conversion from 'UV' to 'gid_t', possible loss of data
conversion from 'UV' to 'int', possible loss of data
conversion from 'UV' to 'unsigned int', possible loss of data
conversion from '__int64' to 'I32', possible loss of data
conversion from '__int64' to 'U16', possible loss of data
conversion from '__int64' to 'U32', possible loss of data
conversion from '__int64' to 'const I32', possible loss of data
conversion from '__int64' to 'const U32', possible loss of data
conversion from '__int64' to 'const int', possible loss of data
conversion from '__int64' to 'const long', possible loss of data
conversion from '__int64' to 'int', possible loss of data
conversion from '__int64' to 'long', possible loss of data
conversion from '__int64' to 'unsigned int', possible loss of data
conversion from '__int64' to 'volatile I32', possible loss of data
conversion from 'const IV' to 'I32', possible loss of data
conversion from 'const IV' to 'int', possible loss of data
conversion from 'const IV' to 'uid_t', possible loss of data
conversion from 'const PADOFFSET' to 'I32', possible loss of data
conversion from 'const UV' to 'I32', possible loss of data
conversion from 'const UV' to 'U32', possible loss of data
conversion from 'const UV' to 'gid_t', possible loss of data
conversion from 'const UV' to 'uid_t', possible loss of data
conversion from 'const __int64' to 'I32', possible loss of data
conversion from 'fpos_t' to 'long', possible loss of data
conversion from 'intptr_t' to 'int', possible loss of data
conversion from 'size_t' to 'DWORD', possible loss of data
conversion from 'size_t' to 'I32', possible loss of data
conversion from 'size_t' to 'U32', possible loss of data
conversion from 'size_t' to 'U8', possible loss of data
conversion from 'size_t' to 'const I32', possible loss of data
conversion from 'size_t' to 'const int', possible loss of data
conversion from 'size_t' to 'int', possible loss of data
conversion from 'size_t' to 'long', possible loss of data
conversion from 'size_t' to 'unsigned int', possible loss of data
conversion from 'size_t' to 'unsigned long', possible loss of data

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	cl -c -nologo -GF -W3 -I..\lib\CORE -I.\include -I. -I.. -DWIN32 -D_CONSOLE -DNO_STRICT -DWIN64 -DCONSERVATIVE -D_CRT_SECURE_NO_DEPRECATE -D_CRT_NONSTDC_NO_DEPRECATE -DPERLDLL -DPERL_CORE   -O1 -MD -Zi -DNDEBUG -GL -fp:precise -DPERL_IS_MINIPERL -Fo.\mini\win32thread.obj win32thread.c