I use all three names without much care, Mac OSX, OSX, Mac OS, but I think 
you're right.

    I checked, and it's implemented using gettimeofday :-)
 
ajo$ otool -t -I -v -V getrunningmicrosecs.cpp.o 
getrunningmicrosecs.cpp.o:
(__TEXT,__text) section
__Z19GetRunningMicroSecsv:
0000000000000000        pushq   %rbp
0000000000000001        movq    %rsp,%rbp
0000000000000004        subq    $0x20,%rsp
0000000000000008        leaq    0xf0(%rbp),%rdi
000000000000000c                movq    $__Z19GetRunningMicroSecsv,%rsi
0000000000000016        callq   _gettimeofday            
<-----------------------------
000000000000001b        imulq   $0x000f4240,0xf0(%rbp),%rsi
0000000000000023        movslq  0xf8(%rbp),%rdi
0000000000000027        addq    %rdi,%rsi
000000000000002a        movl    %esi,%ecx
000000000000002c                movl    %eax,0xec(%rbp)
000000000000002f                movl    %ecx,%eax
0000000000000031        addq    $0x20,%rsp
0000000000000035        popq    %rbp
0000000000000036        ret

Miguel Angel Ajo
http://www.nbee.es
+34911407752
skype: ajoajoajo

On 13/01/2013, at 01:41, Dick Hollenbeck <[email protected]> wrote:

> On 01/12/2013 06:05 PM, Miguel Angel Ajo Pelayo wrote:
>> Where is it included exactly?, after pulling head now it fails on MacOS:
>> 
>> Linking CXX shared module _pcbnew.so
>> ld: library not found for -lrt
> 
> 
> No -lrt on MacOS?
> 
> I wonder how common/GetRunningMicroSecs() gets implemented on MacOS?
> 
> gettimeofday( &tv, 0 );  ?
> 
> Besides, what is MacOS?  I thought it was called OSX?
> 
> 


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