--- /var/db/paludis/repositories/qt/eclass/qt5-build.eclass	2014-01-23 16:31:38.564209367 +0400
+++ /work/GitHub/zaufi-overlay/eclass/qt5-build.eclass	2014-02-16 21:29:44.000000000 +0400
@@ -296,6 +296,7 @@
 	fi
 
 	qt5_install_module_qconfigs
+	qt5_regenerate_cmake_extras
 
 	# remove .la files since we are building only shared libraries
 	prune_libtool_files
@@ -600,3 +601,22 @@
 		ewarn "${qconfig_pri} does not exist or is not a regular file"
 	fi
 }
+
+qt5_regenerate_cmake_extras() {
+	local h
+	local module
+	local extras
+	for h in ${D}${QT5_HEADERDIR}/*; do
+		# Check if versioned private headers are here
+		if [ -d "${h}" -a -d "${h}/${PV}" ]; then
+			module=$(basename "${h}")
+			extras="${D}${QT5_LIBDIR}/cmake/${module/Qt/Qt5}/ExtraSourceIncludes.cmake"
+			if [ ! -f "${extras}" ]; then
+				echo "set(${module/Qt/Qt5}_PRIVATE_INCLUDE_DIRS" > "${extras}"
+				echo "  \"${QT5_HEADERDIR}/${module}/${PV}\"" >> "${extras}"
+				echo "  \"${QT5_HEADERDIR}/${module}/${PV}/${module}\"" >> "${extras}"
+				echo ")" >> "${extras}"
+			fi
+		fi
+	done
+}