net-print/foomatic-db-engine: use pkg-config to locate libxml2 libs

Apply the pkgconfig patch (already submitted to upstream gentoo) to the
4.0.11 ebuild, to fix cross-compile issues.

BUG=chrome-os-partner:47758,chrome-os-partner:49267
TEST=emerge-${BOARD} foomatic-db-engine

Change-Id: I0cf917c2a95d56d6536ac9670c9d42d300dd343b
Signed-off-by: Brian Norris <briannorris@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/322451
Reviewed-by: Mike Frysinger <vapier@chromium.org>
diff --git a/net-print/foomatic-db-engine/foomatic-db-engine-4.0.11.ebuild b/net-print/foomatic-db-engine/foomatic-db-engine-4.0.11.ebuild
index cc6b039..984c25c 100644
--- a/net-print/foomatic-db-engine/foomatic-db-engine-4.0.11.ebuild
+++ b/net-print/foomatic-db-engine/foomatic-db-engine-4.0.11.ebuild
@@ -5,7 +5,7 @@
 EAPI=5
 
 GENTOO_DEPEND_ON_PERL_SUBSLOT=yes
-inherit eutils perl-app versionator
+inherit eutils perl-app versionator autotools
 
 DESCRIPTION="Generates ppds out of xml foomatic printer description files"
 HOMEPAGE="http://www.linuxprinting.org/foomatic.html"
@@ -17,6 +17,9 @@
 IUSE=""
 
 DEPEND="net-print/cups"
+DEPEND="net-print/cups
+	virtual/pkgconfig"
+
 RDEPEND="
 	dev-libs/libxml2
 	|| ( >=net-print/cups-filters-1.0.43-r1[foomatic] net-print/foomatic-filters )
@@ -26,8 +29,10 @@
 src_prepare() {
 	epatch \
 		"${FILESDIR}"/4.0.7-perl-module.patch \
-		"${FILESDIR}"/4.0.7-respect-ldflag.patch
+		"${FILESDIR}"/4.0.7-respect-ldflag.patch \
+		"${FILESDIR}"/4.0.12-use-pkgconfig.patch
 	sed -i -e "s:@LIB_CUPS@:$(cups-config --serverbin):" Makefile.in || die
+	eautoreconf
 }
 
 src_configure() {