pkgconf: prepare for replacing pkg-config

* libpkgconf is removed.
* provides pkg-config
* correctly conflicts with pkg-config
* set a link from /usr/bin/pkg-config to pkgconf

addresses void-linux#3391.

srcpkgs/pkgconf/template

@@ -2,7 +2,8 @@
 pkgname=pkgconf
 version=1.5.3
 revision=1
-conflicts="pkg-config"
+conflicts="pkg-config>=0"
+provides="pkg-config-${version}_${revision}"
 build_style=gnu-configure # cmake and meson also available
 hostmakedepends="libtool"
 checkdepends="kyua"
@@ -13,20 +14,10 @@ homepage="https://git.dereferenced.org/pkgconf/pkgconf"
 changelog="https://git.dereferenced.org/pkgconf/pkgconf/raw/branch/master/NEWS"
 distfiles="https://distfiles.dereferenced.org/pkgconf/${pkgname}-${version}.tar.xz"
 checksum=d3468308553c94389dadfd10c4d1067269052b5364276a9d24a643c88485f715
+configure_args="--disable-shared --disable-static"
 
 post_install() {
 	vlicense COPYING
-}
-
-pkgconf-devel_package() {
-	depends="pkgconf-${version}_${revision}"
-	short_desc+=" - development files"
-	pkg_install() {
-		vmove usr/include
-		vmove usr/lib/pkgconfig
-		vmove usr/share/aclocal
-		vmove usr/share/man/man7
-		vmove "usr/lib/*.so"
-		vmove "usr/lib/*.a"
-	}
+	rm $DESTDIR/usr/include
+	ln -sr $DESTDIR/usr/bin/pkgconf $DESTDIR/usr/bin/pkg-config
 }