bug#9141: Coreutils Compiler Warnings on OSX 10.7 (Lion)

[Herb Wartens]

OSX does have fdatasync defined as part of the libsystem_kernel.dylib library.  
The problem is that there is no header on OSX that actually provides the 
function.  

There is another issue where I redefined PRIuMAX to "llu" and PRIdMAX to "lld" 
on OSX.  This was necessary because the build was picking up the lib/stdint.h 
provided with coreutils.  In there we ended up defining uintmax_t as a uint64_t.

<snip>
#elif defined GL_UINT64_T
# define uintmax_t uint64_t
#else
</snip>

However by default on OSX, PRIdMAX is defined as "jd" and PRIuMAX is defined as 
"ju."

I have added a hack to get coreutils to compile cleanly on OSX.  Hope this 
helps.

-Herb

coreutils_warnings.diff
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