--- a/x11-proto/scrnsaverproto/scrnsaverproto-1.2.2-r1.ebuild
+++ b/x11-proto/scrnsaverproto/scrnsaverproto-1.2.2-r1.ebuild
@@ -11,10 +11,15 @@ inherit xorg-2
 DESCRIPTION="X.Org ScrnSaver protocol headers"
 
 KEYWORDS="alpha amd64 arm ~arm64 hppa ia64 ~mips ppc ppc64 ~s390 ~sh sparc x86 ~ppc-aix ~amd64-fbsd ~x86-fbsd ~x86-interix ~amd64-linux ~arm-linux ~x86-linux ~ppc-macos ~x86-macos ~sparc-solaris ~x64-solaris ~x86-solaris"
-IUSE=""
+IUSE="pdf"
 
 RDEPEND="!<x11-libs/libXScrnSaver-1.2"
-DEPEND="${RDEPEND}"
+DEPEND="${RDEPEND}
+	doc? (
+		>=app-doc/xorg-sgml-doctools-1.8
+		pdf? ( dev-java/fop )
+	)"
+REQUIRED_USE="pdf? ( doc )"
 
 pkg_setup() {
 	xorg-2_pkg_setup
@@ -22,6 +27,6 @@ pkg_setup() {
 	XORG_CONFIGURE_OPTIONS=(
 		$(use_enable doc specs)
 		$(use_with doc xmlto)
-		--without-fop
+		$(use_with pdf fop)
 	)
 }
--- a/x11-proto/scrnsaverproto/metadata.xml
+++ b/x11-proto/scrnsaverproto/metadata.xml
@@ -2,4 +2,7 @@
 <!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
 <pkgmetadata>
 <herd>x11</herd>
+<use>
+	<flag name='pdf'>Install PDF documentation</flag>
+</use>
 </pkgmetadata>