Re: how to add this function to the aclole.m4

[Ralph Blach]

Ralf Wildenhues wrote:
> Hello Ralph,
>
> please don't top-post, it makes threads hard to read; thank you.
>
> * Ralph Blach wrote on Thu, May 20, 2010 at 08:27:02PM CEST:
>    
> > Eric Blake wrote:
> >      
> > > On 05/19/2010 05:21 PM, Ralph Blach wrote:
> > >        
> > > > I want to add this function to the aclocal.m4
> > > >
> > > > How do I do it.
> > > >          
> > > Are you using automake?  If so, just stick the function in a file in the
> > > same directory as where you tell 'aclocal -I dir' to look.  If not, just
> > > paste it in.
> > >        
> [...]
>    
> > I am quite happy with aclocal, but and the default macros,
> >
> > Is there anyway I can add a directory, and still have aclocal use new macro.
> >      
> Yes, as Eric indicated: you can do it like this:
>
> - create a m4/ subdirectory of your top source directory,
> - create a file m4/mymacro.m4 with the macro(s) contents,
> - add the line
>      ACLOCAL_AMFLAGS = -I m4
>    to the toplevel Makefile.am file,
> - optionally also add the line
>      AC_CONFIG_MACRO_DIR([m4])
>    to the configure.ac file
>
> and rerun 'autoreconf -v'.  If your configure.ac file uses the macro,
> then it should now be picked up from the file in the m4 directory.
>
> Have fun,
> Ralf
>
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>    
AC_DEFUN([AC_CHECK_FUNC_PROTO],
    [AC_CACHE_CHECK(for $1 function prototype in $2, ac_cv_have_$1_proto,
        AC_EGREP_HEADER($1, $2,
            ac_cv_have_$1_proto=yes,
            ac_cv_have_$1_proto=no))
    if test $ac_cv_have_$1_proto = yes ; then
            ac_tr_func=HAVE_`echo $1 | tr 'abcdefghijklmnopqrstuvwxyz' 
'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`_PROTO
        AC_DEFINE_UNQUOTED($ac_tr_func)
    fi
])

autoreconfig -v is run, the new configure file is made, but
I get this configure error

checking for gethostname function prototype in unistd.h... ./configure: 
line 3828: syntax error near unexpected token `newline'
./configure: line 3828: `*GNU*'

Any ideas.

Chip