--- insight-6.8.1-r1.ebuild
+++ insight-6.8.1-r1.ebuild
@@ -48,6 +48,10 @@ src_prepare() {
 	# remove bundled stuff
 	rm -rf "${S}"/{itcl,tcl,tk,readline} || die
 
+	# useless docs, fail with texinfo-5 (#465460)
+	sed -i -e '/^SUBDIRS\>.*\<doc\>/s/\<doc\>//' bfd/Makefile.{am,in} || die
+	sed -i -e '/AC_CONFIG_SUBDIRS.*\<doc\>/s/\<doc\>//' gdb/configure.ac || die
+
 	for location in gdb/gdbtk/plugins libgui; do
 		pushd ${location} > /dev/null
 		eautoreconf