Re: D_GNU_SOURCE option for gcc?

[stephen parkinson]

Martin Dickopp wrote:

stephen parkinson <[EMAIL PROTECTED]> writes:

 

Thomas H. George wrote:

   

I am using source code from UNIX SYSTEMS PROGRAMMING by Robbins &
Robbins.  It gives a compiler error unless compiled with the option
-D_GNU_SOURCE .
Where does this option come from - its not in the man pages?  Why is
it needed when using the Debian gcc and g++ packages?
     

30sec google search suggests it should perhaps be

-DGNU_SOURCE
   

Care to elaborate? A Google search for GNU_SOURCE turns up 1,680 hits
for me, while _GNU_SOURCE is found 17,200 times.
Martin

 

looked down first 2 pages
picked a few showing indications of a problem
followed a couple
follwed an answer in a news group archive
and i'm about to throw the 19yrs old cat across the room if she
don't stop nuzzling the keyboard
i suspect i should have asked for o/p of 'gcc --version'
stephen



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