Re: warning: implicit declaration of function 'readahead'

["Mathieu Malaterre" <mathieu.malaterre@gmail.com>]

On Wed, Feb 27, 2008 at 4:45 PM, Sven Joachim <svenjoac@gmx.de> wrote:
>
> On 2008-02-27 16:24 +0100, Mathieu Malaterre wrote:
>
>  > Hello,
>  >
>  >   I am getting this annoying warning:
>  >
>  > warning: implicit declaration of function 'readahead'
>  >
>  >   Looking at the man page of readahead I need to include fcntl.h to
>  > get the declaration. But after digging in the source the readahead is
>  > only accessible if __USE_GNU is defined, which in turn is only defined
>  > if _GNU_SOURCE is defined.
>  >
>  >   So either the declaration needs to be moved out of the __USE_GNU, or
>  > the documentation needs to be updated to specify the requirement for
>  > _GNU_SOURCE before the #include, correct ?
>
>  Well, the current version of the readahead manpage in sid already states
>  this:
>
>  ,----
>  | SYNOPSIS
>  |       #define _GNU_SOURCE
>  |       #include <fcntl.h>
>  |
>  |       ssize_t readahead(int fd, off64_t offset, size_t count);
>  `----
>
>  My version of manpages-dev is 2.78-1, maybe your version is outdated?

thanks !

running debian oldstable, will switch to etch next week :)


-- 
Mathieu