Doh. Add a missing #include to interp.c. I wonder why it used to

work?  Perhaps the wrapper bug miles fixed?  Regardless this is very
much needed.
 -Erik

libc/misc/internals/Makefile

@@ -42,6 +42,7 @@ ar-target: $(OBJS)
 
 interp.c: Makefile
 	echo "/* Force shared libraries to know about the correct library loader */" > interp.c
+	echo "#include <features.h>" >> interp.c
 	echo "#ifdef HAVE_ELF" >> interp.c
 	echo "const char __dl_ldso__[] __attribute__ ((section " \
 		"(\".interp\"))) =\""$(DYNAMIC_LINKER)"\";" >> interp.c