[PATCH] Implement error_print_progname

[Will Newton]

On Fri, Mar 21, 2008 at 7:47 AM, Carmelo Amoroso <carmelo73 at gmail.com> wrote:

Hi Carmelo,

> Will Newton wrote:
>  > Further to the changes to error.c to fix bug #1869 it would be nice if
>  > uClibc supported error_print_progname. The attached patch aims to do
>  > that.
>  >
>  >
>
>  Hello,
>  this is an old story. uClibc doesn't provide support for error_print_progname
>  even if header error.h declare it.
>  I would like to have it implemented before using. If we know that it's missing,
>  while testing for its value and call it ?
>  This my opinion.

I know, I've been subscribed to this list some time and I have read
the archives.

As I understand it error_print_progname is a global that is intended
to be assigned by the user, that is how the interface is intended to
be used:

"If the global variable error_print_progname is assigned the address
of a function (i.e., is not NULL), then that function is called
instead of prefixing the message with the program name and colon. The
function should print a suitable string to stderr. "

And I think my patch implements that.

error.h is a GNU interface and dropping one part of it
(error_print_progname) seems to be unnecessarily incompatible. Better
to remove error.h completely than implement 95% of it, at least then
e.g. gnulib can be used as a replacement.