>  emerald-devel-0.5.2-alt1	Provides	pkgconfig(emeraldengine) = 0.5.2
> +emerald-devel-0.5.2-alt1	Requires	compiz-devel
>  emerald-devel-0.5.2-alt1	Requires	emerald = 0.5.2-alt1
> +emerald-devel-0.5.2-alt1	Requires	fontconfig-devel
> +emerald-devel-0.5.2-alt1	Requires	glib2-devel
> +emerald-devel-0.5.2-alt1	Requires	libX11-devel
> +emerald-devel-0.5.2-alt1	Requires	libXrender-devel
> +emerald-devel-0.5.2-alt1	Requires	libatk-devel
> +emerald-devel-0.5.2-alt1	Requires	libcairo-devel
> +emerald-devel-0.5.2-alt1	Requires	libfreetype-devel
> +emerald-devel-0.5.2-alt1	Requires	libgtk+2-common-devel
> +emerald-devel-0.5.2-alt1	Requires	libgtk+2-devel
> +emerald-devel-0.5.2-alt1	Requires	libpango-devel
> +emerald-devel-0.5.2-alt1	Requires	libstartup-notification-devel
> +emerald-devel-0.5.2-alt1	Requires	libwnck-devel
>  emerald-devel-0.5.2-alt1	Requires	pkgconfig(gtk+-2.0) >= 2.8.0
> @@ -24466,2 +24492,3 @@
>  emerald-devel-0.5.2-alt1	Requires	pkgconfig(xrender) >= 0.8.4
> +emerald-devel-0.5.2-alt1	Requires	zlib-devel
>  emerald-devel-0.5.2-alt1	Requires(rpmlib)	rpmlib(CompressedFileNames) <= 3.0.4-1

В Libs: указано очень много библиотек.
Наверное, большую их часть нужно переместит в Libs.private.

$ rpmpeek emerald-devel-0.5.2-alt1.i586.rpm sh -c 'grep ^Libs:.\*-l ./usr/lib/pkgconfig/*.pc'
Libs: -lwnck-1 -lgtk-x11-2.0 -lstartup-notification-1 -lgdk-x11-2.0 -latk-1.0 -lgdk_pixbuf-2.0 -ldecoration -lXrender -lX11 -lpangocairo-1.0 -lcairo -lpangoft2-1.0 -lfontconfig -lfreetype -lz -lpango-1.0 -lm -lgobject-2.0 -lgmodule-2.0 -ldl -lglib-2.0
$