Compiling MLTon on Windows64/Mingw64

Hi All,

I am compiling MLTon source from the current github HEAD. My build
arch/platform is Win64/Mingw64/Msys. While I am able to build the 'runtime'
successfully - I think - I am getting a lot of gcc compiler warnings. Is it
okay/safe/correct to ignore these warnings and move on? Or is it better to
address these warnings and get a clean compile/build without any warnings?

The gcc compiler I am using :
gcc version 4.9.0 (x86_64-win32-seh-rev2, Built by MinGW-W64 project)

Some of the the warnings that I am getting are as follows - about 400 such
warnings.:

platform/mingw.c: In function 'MLTimer':
platform/mingw.c:260:17: warning: implicit declaration of function
'timeBeginPeriod' [-Wimplicit-function-declaration]
                 timeBeginPeriod(1);
                 ^
platform/mingw.c:260:17: warning: nested extern declaration of
'timeBeginPeriod' [-Wnested-externs]
platform/mingw.c: In function 'setSysname':
platform/mingw.c:785:9: warning: dereferencing type-punned pointer might
break strict-aliasing rules [-Wstrict-aliasing]
         if (! GetVersionEx ((OSVERSIONINFO *)(void*) &osv)) {
         ^
platform/mingw.c:788:11: warning: dereferencing type-punned pointer might
break strict-aliasing rules [-Wstrict-aliasing]
           GetVersionEx((OSVERSIONINFO *)(void*) &osv);
           ^
basis/MLton/Process/spawne.c: In function 'MLton_Process_spawne':
basis/MLton/Process/spawne.c:26:9: warning: passing argument 3 of 'spawnve'
from incompatible pointer type
   res = spawnve (SPAWN_MODE, path,
         ^
In file included from C:/MinGW/64/x86_64-w64-mingw32/include/unistd.h:11:0,
                 from ./platform/mingw.h:13,
                 from ./cenv.h:88,
                 from ./platform.h:13,
                 from basis/MLton/Process/spawne.c:1:

Bikal.

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