upgrade problem

[l l]

Hi,

I am using Fedora 7(x86_64) and pkg-config 0.21,
There is no firefox 2.0.0.6 for fedora 7, so i had compiled and installed it.

So here is the problem,
$ pkg-config --list-all | sort
It doesn't shows firefox*, though there is firefox-xpcom.pc etc under
/usr/lib/pkgconfig/.
I couldn't remove pkg-config from fedora 7, because, there is so many
dependency.
I tried to install pkg-config 0.22 myself, but i got follow message.

[user at localhost pkgconfig]$ pkg-config --list-all
xext                      Xext - Misc X Extension Library
glib-2.0                  GLib - C Utility Library
Package fontenc was not found in the pkg-config search path.
Perhaps you should add the directory containing `fontenc.pc'
to the PKG_CONFIG_PATH environment variable
Package 'fontenc', required by 'Xfont', not found

--
I can install all packages which is depend on pkg-config, but it is
too much time-wasted vague job.
I wish if there is work-around solution for it.

TIA