gentoo-overlay/sys-libs/readline/files/readline-5.0-no_rpath.patch

ripped from Fedora

--- a/support/shobj-conf
+++ b/support/shobj-conf
@@ -102,7 +102,7 @@
 	SHOBJ_LD='${CC}'
 	SHOBJ_LDFLAGS='-shared -Wl,-soname,$@'
 
-	SHLIB_XLDFLAGS='-Wl,-rpath,$(libdir) -Wl,-soname,`basename $@ $(SHLIB_MINOR)`'
+	SHLIB_XLDFLAGS='-Wl,-soname,`basename $@ $(SHLIB_MINOR)`'
 	SHLIB_LIBVERSION='$(SHLIB_LIBSUFF).$(SHLIB_MAJOR)$(SHLIB_MINOR)'
 	;;