Re: __builtin_expect in 1.9.1

Peter Wächtler wrote:
> 
> I tried to compile ngpt-1.9.1 with gcc 2.95.3.
> 

Oh, found a better patch:

just include <linux/compiler.h> in shm_open.c ;-)



#ifndef __LINUX_COMPILER_H
#define __LINUX_COMPILER_H

/* Somewhere in the middle of the GCC 2.96 development cycle, we implemented
    a mechanism by which the user can annotate likely branch directions and
    expect the blocks to be reordered appropriately.  Define __builtin_expect
    to nothing for earlier compilers.  */

#if __GNUC__ == 2 && __GNUC_MINOR__ < 96
#define __builtin_expect(x, expected_value) (x)
#endif

#define likely(x)       __builtin_expect((x),1)
#define unlikely(x)     __builtin_expect((x),0)

#endif /* __LINUX_COMPILER_H */