add a missing zlib pkgconfig path that is now required by freetype2.pc.

component/fontconfig/buildout.cfg

@@ -15,7 +15,7 @@ parts =
 recipe = slapos.recipe.cmmi
 url = http://fontconfig.org/release/fontconfig-2.11.0.tar.bz2
 md5sum = 000bd4baf7aefa828e03414d0c8c7dc5
-pkg_config_depends = ${freetype:location}/lib/pkgconfig:${libxml2:location}/lib/pkgconfig
+pkg_config_depends = ${freetype:location}/lib/pkgconfig:${libxml2:location}/lib/pkgconfig:${zlib:location}/lib/pkgconfig
 # XXX-Cedric : should we use --with-add-fonts={somefont:location}/share,{someotherfont:location}/share?
 configure-options =
   --disable-static

component/xorg/buildout.cfg

@@ -250,7 +250,7 @@ recipe = slapos.recipe.cmmi
 url = http://www.x.org/releases/X11R7.7/src/everything/libXfont-1.4.5.tar.bz2
 md5sum = 6851da5dae0a6cf5f7c9b9e2b05dd3b4
 environment =
-  PKG_CONFIG_PATH=${fontsproto:location}/lib/pkgconfig:${libfontenc:location}/lib/pkgconfig:${xproto:location}/lib/pkgconfig:${xtrans:location}/share/pkgconfig:${freetype:location}/lib/pkgconfig
+  PKG_CONFIG_PATH=${fontsproto:location}/lib/pkgconfig:${libfontenc:location}/lib/pkgconfig:${xproto:location}/lib/pkgconfig:${xtrans:location}/share/pkgconfig:${freetype:location}/lib/pkgconfig:${zlib:location}/lib/pkgconfig
   PATH=${pkgconfig:location}/bin:%(PATH)s
   CPPFLAGS=-I${zlib:location}/include
   LDFLAGS=-L${bzip2:location}/lib -Wl,-rpath=${bzip2:location}/lib -L${zlib:location}/lib -Wl,-rpath=${zlib:location}/lib
@@ -465,7 +465,7 @@ configure-options =
   --with-xkb-path=${xkeyboard-config:location}/share/X11/xkb
   --with-sha1=libgcrypt
 environment =
-  PKG_CONFIG_PATH=${pixman:location}/lib/pkgconfig:${openssl:location}/lib/pkgconfig:${xorg-util-macros:location}/share/pkgconfig:${fixesproto:location}/lib/pkgconfig:${damageproto:location}/lib/pkgconfig:${xcmiscproto:location}/lib/pkgconfig:${xtrans:location}/share/pkgconfig:${bigreqsproto:location}/lib/pkgconfig:${xproto:location}/lib/pkgconfig:${randrproto:location}/lib/pkgconfig:${renderproto:location}/lib/pkgconfig:${xextproto:location}/lib/pkgconfig:${inputproto:location}/lib/pkgconfig:${kbproto:location}/lib/pkgconfig:${fontsproto:location}/lib/pkgconfig:${videoproto:location}/lib/pkgconfig:${recordproto:location}/lib/pkgconfig:${resourceproto:location}/lib/pkgconfig:${xineramaproto:location}/lib/pkgconfig:${libXau:location}/lib/pkgconfig:${libxkbfile:location}/lib/pkgconfig:${libXfont:location}/lib/pkgconfig:${libX11:location}/lib/pkgconfig:${libxcb:location}/lib/pkgconfig:${xorg-libpthread-stubs:location}/lib/pkgconfig:${libfontenc:location}/lib/pkgconfig:${freetype:location}/lib/pkgconfig
+  PKG_CONFIG_PATH=${pixman:location}/lib/pkgconfig:${openssl:location}/lib/pkgconfig:${xorg-util-macros:location}/share/pkgconfig:${fixesproto:location}/lib/pkgconfig:${damageproto:location}/lib/pkgconfig:${xcmiscproto:location}/lib/pkgconfig:${xtrans:location}/share/pkgconfig:${bigreqsproto:location}/lib/pkgconfig:${xproto:location}/lib/pkgconfig:${randrproto:location}/lib/pkgconfig:${renderproto:location}/lib/pkgconfig:${xextproto:location}/lib/pkgconfig:${inputproto:location}/lib/pkgconfig:${kbproto:location}/lib/pkgconfig:${fontsproto:location}/lib/pkgconfig:${videoproto:location}/lib/pkgconfig:${recordproto:location}/lib/pkgconfig:${resourceproto:location}/lib/pkgconfig:${xineramaproto:location}/lib/pkgconfig:${libXau:location}/lib/pkgconfig:${libxkbfile:location}/lib/pkgconfig:${libXfont:location}/lib/pkgconfig:${libX11:location}/lib/pkgconfig:${libxcb:location}/lib/pkgconfig:${xorg-libpthread-stubs:location}/lib/pkgconfig:${libfontenc:location}/lib/pkgconfig:${freetype:location}/lib/pkgconfig:${zlib:location}/lib/pkgconfig
   CPPFLAGS=-I${bzip2:location}/include -I${gcrypt:location}/include -I${gpg-error:location}/include -I${zlib:location}/include
   PATH=${pkgconfig:location}/bin:%(PATH)s
   LDFLAGS=-L${bzip2:location}/lib -Wl,-rpath=${bzip2:location}/lib -L${gcrypt:location}/lib -Wl,-rpath=${gcrypt:location}/lib -L${gpg-error:location}/lib -Wl,-rpath=${gpg-error:location}/lib -L${zlib:location}/lib -Wl,-rpath=${zlib:location}/lib