Steve Hay <[EMAIL PROTECTED]> writes:
>Does anyone else see several dozen
>
>warning: #pragma system_header ignored outside include file
>
>warnings when building Errno with gcc?
>
>I see it on Win32 (MinGW -- gcc 3.2.3). It never used to happen, but
>does as of change 23806 which filled in $Config{gccversion} and thus
>causes Errno_pm.PL to scan the output of "gcc -E -dM" on each header
>file, rather than scanning each header file directly.
>
>Under MinGW running
>
>gcc -E -dM -DWIN32 C:/MinGW/include/windows.h
>
>emits
>
>C:/MinGW/include/windows.h:16:13: warning: #pragma system_header ignored
>outside include file
>
>on stderr. The windows.h header file (and many others) includes the lines
>
>#if __GNUC__ >=3
>#pragma GCC system_header
>#endif
>
>Is there any way to suppress these warnings?
>
gcc -E -dM -DWIN32 foo.c
Where foo.c is just
#include <windows.h>
If this wasn't windows
echo "#include <windows.h>" | gcc -E -dM -DWIN32 -xc -
might have done...
>If not then what is best to do? I could revert to scanning the files
>directly rather than using "gcc -E -dM" (but that sounds like a step
>backwards) or I could send stderr to the null device (but that sounds
>potentially dangerous -- people may miss something genuinely relevant).
>
>Any other ideas?
>
>
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