http://bugzilla.mindrot.org/show_bug.cgi?id=1294

--- includes.h
+++ includes.h
@@ -52,6 +52,9 @@
 #ifdef HAVE_PATHS
 # include <paths.h>
 #endif
+#ifdef HAVE_STRING_H
+# include <string.h>
+#endif
 
 /*
  *-*-nto-qnx needs these headers for strcasecmp and LASTLOG_FILE respectively