We must include gettext.h before missing.h as it includes system

headers.  Also add missing DEFAULT_TEXT_DOMAIN defines in sudoers
audit code that does not include sudoers.h.

plugins/sudoers/audit.c

@@ -33,6 +33,9 @@
 #endif /* HAVE_STDBOOL_H */
 #include <stdarg.h>
 
+#define DEFAULT_TEXT_DOMAIN	"sudoers"
+#include "gettext.h"		/* must be included before missing.h */
+
 #include "missing.h"
 #include "logging.h"
 #include "sudo_debug.h"
@@ -44,9 +47,6 @@
 # include "linux_audit.h"
 #endif
 
-#define DEFAULT_TEXT_DOMAIN	"sudoers"
-#include "gettext.h"
-
 void
 audit_success(char *exec_args[])
 {