Re: Why does 'AC_MSG_CHECKING' output extra junk.

[Dr. David Kirkby]

Daniel Leidert wrote:
> Am Freitag, den 07.08.2009, 12:45 +0100 schrieb Dr. David Kirkby:
> > If I have this in my configure.ac
> >
> > AC_MSG_CHECKING([if gcc uses the GNU or Sun linker])
> >
> > then run the configure script, I see:
> >
> > checking if gcc uses the GNU or Sun linker... checking for a sed that 
> > does not truncate output... /opt/csw/bin/gsed
> >
> > I've not asked it to check for sed, so why is it putting that in the end?
>
> Because you don't output any result to your own check. AC_MSG_CHECKING
> doesn't output a newline at the end. So what you see is the next check.
> One would usually use the macros like that:
>
> AC_MSG_CHECKING([for foo])
> test ... ; then
>         AC_MSG_RESULT([yes])
> else
>         AC_MSG_RESULT([no])
> fi
>
> Regards, Daniel


Thank you Daniel. I'm only sending this to the list, and not replying to 
you directly, as I doubt you want two copies of the same message.

That answers my query. Now I can easily re-rewrite the test, so it works 
better.