3.6% of heads up: Please correct your #includes or optflags use

[Patrice Dumas]

On Thu, Mar 20, 2008 at 02:52:40PM +0100, Lubomir Kundrak wrote:
> Hi all,
> 
> The second problem is not specifically FORTIFY_SOURCE related; you
> should really include respective headers, many routines can really be
> macros; such as open(). POSIX allows this iirc.
> 
> If you have more time, try to rebuild your package with
> "-Werror-implicit-function-declaration" added to %optflags in your
> ~/.rpmmacros to see if you rely on implicit declarations where you
> should include the header files with macros and/or prototypes instead.

There are about 200 of such functions in a package I maintain, the
cernlib. Is it really important to fix them? What are the implications?
Though the implicit declarations arer not for printf...

--
Pat