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

Tal Shnaiderman talshn at nvidia.com
Sun Apr 18 21:04:55 CEST 2021


> 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

> 
> > Fixed by defining the marco only to the clang compiler.
> 
> That's a very common typo: s/marco/macro/
> 

Thanks, will fix in v2 if this patch is indeed needed.

> 





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