http://bugs.gentooorg/190051

--- libsandbox/Makefile.in
+++ libsandbox/Makefile.in
@@ -517,6 +517,7 @@
 
 
 libsandbox.c: libsandbox.map symbols.h
+wrappers.c: symbols.h
 
 libsandbox.map: $(SYMBOLS_FILE) $(GEN_VERSION_MAP_SCRIPT)
 	@echo "Generating $@"; \