compton-git: add provides/replaces; cross build support.

srcpkgs/compton-git/template

@@ -1,9 +1,9 @@
 # Template file for 'compton-git'
 pkgname=compton-git
-version=20140506
+version=20140509
 revision=1
 build_style="gnu-makefile"
-hostmakedepends="pkg-config asciidoc"
+hostmakedepends="pkg-config asciidoc pcre-devel"
 makedepends="dbus-devel libXcomposite-devel libXdamage-devel libXrandr-devel pcre-devel
  libconfig-devel libdrm-devel MesaLib-devel libXinerama-devel desktop-file-utils"
 depends="desktop-file-utils"
@@ -12,7 +12,8 @@ homepage="https://github.com/chjj/compton"
 license="MIT"
 short_desc="A compositor for X (fork of xcompmgr-dana)"
 
-only_for_archs="i686 x86_64"
+provides="compton-${version}_${revision}"
+replaces="compton>=0"
 
 do_fetch() {
 	local url="git://github.com/chjj/compton.git"