5798 fexecve() needed per POSIX 2008

@@ -12,9 +12,9 @@
 #
 # Copyright (c) 2012 by Delphix. All rights reserved.
 # Copyright 2015 Garrett D'Amore <garrett@damore.org>
 #
 
-SUBDIRS = fpround newlocale nl_langinfo symbols wcsrtombs wctype
+SUBDIRS = fexecve fpround newlocale nl_langinfo symbols wcsrtombs wctype
 
 include $(SRC)/Makefile.master
 include $(SRC)/test/Makefile.com