[dpdk-dev] [PATCH] eal/windows: fix build warnings in MinGW

[Dmitry Kozlyuk]

Hi Tal,

2021-04-18 19:04 (UTC+0000), Tal Shnaiderman:
> > Subject: Re: [PATCH] eal/windows: fix build warnings in MinGW
> > 
> > External email: Use caution opening links or attachments
> > 
> > 
> > 18/04/2021 19:08, Tal Shnaiderman:  
> > > the strncasecmp marco defined in rte_os_shim.h is already defined in
> > > MinGW-w64, as a result the compiler prints out the warning below on
> > > function redefinition whenever compiling a file including the header.
> > >
> > > ..\lib/librte_eal/windows/include/rte_os_shim.h:21:
> > > warning: "strncasecmp" redefined
> > > #define strncasecmp(s1, s2, count) _strnicmp(s1, s2, count)  
> > 
> > Why the tests are passing? Are we allowing warnings in build test?  
> 
> It's a good question, I see CI is passing without warnings, Dmitry can you reproduce it?
> 
> On my side the collision is with the following file:
> 
> C:/mingw-w64/x86_64/mingw64/x86_64-w64-mingw32/include/string.h:119: note: this is the location of the previous definition
>  #define strncasecmp _strnicmp
> 
> I'm using:
> -gcc (x86_64-win32-seh-rev0, Built by MinGW-W64 project) 8.1.0
> -meson 0.53.2

I can't reproduce it using the same versions.
Do you invoke meson with other options than "-Dexamples=..."?