Add HAVE_STRINGS_H for better POSIX compliance.

cpukit/libnetworking/libc/gethostbydns.c

@@ -69,6 +69,9 @@
 #include <stdio.h>
 #include <unistd.h>
 #include <string.h>
+#ifdef HAVE_STRINGS_H
+#include <strings.h>
+#endif
 #include <netdb.h>
 #include <resolv.h>
 #include <ctype.h>

cpukit/libnetworking/libc/gethostbyht.c

@@ -65,6 +65,9 @@
 #include <ctype.h>
 #include <errno.h>
 #include <string.h>
+#ifdef HAVE_STRINGS_H
+#include <strings.h>
+#endif
 #include <arpa/nameser.h>	/* XXX */
 #include <resolv.h>		/* XXX */
 #include <sys/fcntl.h>

cpukit/libnetworking/libc/gethostnamadr.c

@@ -36,6 +36,9 @@
 #include <ctype.h>
 #include <errno.h>
 #include <string.h>
+#ifdef HAVE_STRINGS_H
+#include <strings.h>
+#endif
 #include <arpa/nameser.h>		/* XXX hack for _res */
 #include <resolv.h>			/* XXX hack for _res */
 

cpukit/libnetworking/libc/getnetbyht.c

@@ -53,6 +53,9 @@
 #include <netdb.h>
 #include <stdio.h>
 #include <string.h>
+#ifdef HAVE_STRINGS_H
+#include <strings.h>
+#endif
 
 #define	MAXALIASES	35
 

cpukit/libnetworking/libc/linkaddr.c

@@ -41,6 +41,9 @@
 #include <sys/socket.h>
 #include <net/if_dl.h>
 #include <string.h>
+#ifdef HAVE_STRINGS_H
+#include <strings.h>
+#endif
 
 /* States*/
 #define NAMING	0

cpukit/libnetworking/libc/ns_print.c

@@ -32,6 +32,9 @@
 #include <errno.h>
 #include <resolv.h>
 #include <string.h>
+#ifdef HAVE_STRINGS_H
+#include <strings.h>
+#endif
 #include <ctype.h>
 
 #define SPRINTF(x) ((size_t)sprintf x)

cpukit/libnetworking/libc/res_debug.c

@@ -115,6 +115,9 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#ifdef HAVE_STRINGS_H
+#include <strings.h>
+#endif
 #include <time.h>
 
 #define SPRINTF(x) sprintf x

cpukit/libnetworking/libc/res_query.c

@@ -84,6 +84,9 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#ifdef HAVE_STRINGS_H
+#include <strings.h>
+#endif
 
 #include "res_config.h"
 

cpukit/libnetworking/libc/res_send.c

@@ -92,6 +92,9 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#ifdef HAVE_STRINGS_H
+#include <strings.h>
+#endif
 #include <unistd.h>
 #if !defined(__rtems__)
 #include <poll.h>

cpukit/libnetworking/libc/res_update.c

@@ -37,6 +37,9 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#ifdef HAVE_STRINGS_H
+#include <strings.h>
+#endif
 
 /*
  * Separate a linked list of records into groups so that all records