kde-misc/wacomtablet: Fix build without XLIB

Closes: https://bugs.gentoo.org/681674
Package-Manager: Portage-2.3.62, Repoman-2.3.12
Signed-off-by: Andreas Sturmlechner <asturm@gentoo.org>

kde-misc/wacomtablet/files/wacomtablet-3.1.1-xlib-optional.patch

@@ -0,0 +1,19 @@
+--- a/CMakeLists.txt	2019-03-24 18:34:44.642298259 +0100
++++ b/CMakeLists.txt	2019-03-24 18:38:45.593440974 +0100
+@@ -24,7 +24,7 @@
+ find_package(Qt5 REQUIRED COMPONENTS Core Gui Widgets DBus X11Extras Qml)
+ find_package(KF5 REQUIRED COMPONENTS CoreAddons I18n GlobalAccel Config XmlGui WidgetsAddons WindowSystem Notifications DBusAddons Plasma DocTools)
+ find_package(XCB OPTIONAL_COMPONENTS XINPUT)
+-find_package(X11 REQUIRED COMPONENTS XLIB)
++find_package(X11 REQUIRED)
+ find_package(XorgWacom REQUIRED)
+ find_package(LibWacom REQUIRED)
+ 
+@@ -41,6 +41,7 @@
+     set(USING_X_LIBRARIES XCB::XINPUT ${X11_Xinput_LIB})
+     add_definitions(-DHAVE_XCB_XINPUT)
+ else()
++    find_package(X11 REQUIRED COMPONENTS XLIB)
+     message(STATUS "Falling back to X11_XINPUT.")
+     set(USING_X_LIBRARIES ${X11_LIBRARIES} ${X11_Xinput_LIB})
+ endif()

kde-misc/wacomtablet/wacomtablet-3.1.1.ebuild

@@ -40,12 +40,13 @@ CDEPEND="
 DEPEND="${CDEPEND}
 	sys-devel/gettext
 	x11-base/xorg-proto
-	x11-libs/libX11
 "
 RDEPEND="${CDEPEND}
 	!kde-misc/wacomtablet:4
 "
 
+PATCHES=( "${FILESDIR}/${P}-xlib-optional.patch" ) # bug 681674
+
 src_test() {
 	# test needs DBus, bug 675548
 	local myctestargs=(