--- /usr/portage/dev-cpp/libxsd-frontend/libxsd-frontend-1.18.0-r1.ebuild	2013-02-23 11:01:07.000000000 -0500
+++ /usr/portage/dev-cpp/libxsd-frontend/libxsd-frontend-1.18.0-r1.ebuild	2013-09-07 15:25:34.000000000 -0400
@@ -50,6 +50,7 @@ 
 
 	cat >> build/import/libboost/configuration-dynamic.make <<- EOF
 libboost_installed := y
+libboost_system := y
 	EOF
 	cat >> build/import/libcult/configuration-dynamic.make <<- EOF
 libcult_installed := y