On Wed, 30 Mar 2005 09:23:54 -0500, Matthias Clasen wrote:
> On Wed, 2005-03-30 at 16:01 +0200, Miloslav Trmac wrote:
> > On Wed, Mar 30, 2005 at 08:43:38AM -0500, Matthias Clasen wrote:
> > > .pc files contain dependencies, e.g. the gdk-pixbuf-2.0.pc file has the
> > > line
> > >
> > > Requires: gobject-2.0,gmodule-no-export-2.0
> > >
> > > which means you'll get errors from pgk-config if you try to use the gdk-
> > > pixbuf-2.0.pc file without having glib-devel installed (which contains
> > > the gobject-2.0.pc and gmodule-no-export-2.0.pc files). Since rpm does
> > > not pick up these dependencies on its own,
> > Wouldn't It Be Cool(tm) if rpm did pick these dependencies automatically?
> >
> > for i in $RPM_BUILD_DIR{%{_libdir},%{_datadir}}/pkgconfig/*.pc; do
> > set -- $(sed -n 's/^Requires: //p' < "$i")
> > for dep; do
> > f=%{_libdir}/pkgconfig/$dep.pc
> > [ -f "$f" ] && { rpm -qf "$f"; continue; }
> > f=%{_datadir}/pkgconfig/$dep.pc
> > [ -f "$f" ] && { rpm -qf "$f"; continue; }
> > echo "pkg-config file $dep.pc not found" >&2
> > done
> > done
> >
>
> Nice idea, but you'll run into difficulties with things like:
>
> Requires: gdk-${target}-2.0 atk
Also with comma-separated lists and versioned ones like:
Requires: atk >= 2.0, glib-2.0
The Perl fragment I use to parse pkgconfig files has not been changed
for a long time:
open (PCFILE, "< $pc") or die "Unable to open: $pc\n";
while ( <PCFILE> ) {
chomp;
# Crude hack to collect and substitute macros.
if ( /([a-z_]+)=(.*)/ ) {
$macros{$1} = $2;
}
while ( /(\${([a-z_]+)})/ ) {
$a = $1;
$b = $2;
$a =~ s/\$/\\\$/g;
s/$a/$macros{$b}/g;
}
/^Requires/ or next;
s/^Requires:\s*//;
s/,/ /g; # pkgconfig permits space/comma separate lists
s/>*=\s+\d+(\.\d+)*//g; # get rid of versions like "foo >= 1.0"
(my @req) = split;
push @requires, @req;
}
