Re: libxml2 and libreadline are not found

[Jason Stover]

Upgrading to pkg-config 0.22 fixed the trouble. Should we mention
pkg-config 0.22 or later as a pseudo- or quasi- or semi-prerequisite in
INSTALL?

-Jason

On Wed, Nov 14, 2007 at 09:57:04PM -0800, Ben Pfaff wrote:
> Ben Pfaff <address@hidden> writes:
> 
> > Jason Stover <address@hidden> writes:
> >
> >> configure: WARNING: The following optional prerequisites are not installed.
> >> You may wish to install them to obtain additional functionality:
> >>         libxml2
> >>         libreadline (which may itself require libncurses or libtermcap)
> >>
> >> but I have libxml2:
> >>
> >> $ ls /usr/local/lib/libxml2*
> >> /usr/local/lib/libxml2.a              /usr/local/lib/libxml2.la*           
> >>  /usr/local/lib/libxml2.so.8.30*
> >
> > Is -L/usr/local/lib in LDFLAGS?  You might also need to have
> > /usr/local/lib in LD_LIBRARY_PATH.
> 
> Following my own advice, I tried that out on math and got what
> you did, too.  I investigated further and discovered that
> PKG_CHECK_MODULES in /usr/share/aclocal/pkg.m4 was weirdly
> defective: it appears to *always* report packages as missing,
> even if it tests for them and finds them to be present.
> 
> So I copied pkg.m4 from another machine (now in /home/blp/pkg.m4)
> and reran configure:
>         cd /home/blp/pspp
>         cp /home/blp/pkg.m4 m4
>         aclocal -I m4 -I gl/m4
>         autoconf
>         ./configure
> With the fixed pkg.m4, libxml2 was properly detected.
> 
> The latest version of pkg-config is 0.22.  It looks like math has
> 0.19.  Beats me how 0.19 could *ever* have worked, if that's
> where /usr/share/aclocal/pkg.m4 came from...
> 
> Ah, I see: it *didn't* work, see this Debian bug report:
>         http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=316181
> fixed by the upstream author as a "brown bag bug where pkg.m4
> always set pkg_failed to untried".
> 
> I think you should install pkg-config 0.22 on math.
> -- 
> "Now I have to go wash my mind out with soap."
> --Derick Siddoway