Do the 4.4BSD sys_errlist modification for NetBSD also.

From-SVN: r7707

gcc/cccp.c

@@ -187,7 +187,7 @@ extern FILE *fdopen ();
 extern char *version_string;
 extern struct tm *localtime ();
 extern int sys_nerr;
-#if defined(bsd4_4)
+#if defined(bsd4_4) || defined(__NetBSD__)
 extern const char *const sys_errlist[];
 #else
 extern char *sys_errlist[];

gcc/collect2.c

@@ -41,7 +41,7 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
 extern int errno;
 #endif
 
-#if defined(bsd4_4)
+#if defined(bsd4_4) || defined(__NetBSD__)
 extern const char *const sys_errlist[];
 #else
 extern char *sys_errlist[];

gcc/gcc.c

@@ -132,7 +132,7 @@ extern void free ();
 extern char *getenv ();
 
 extern int errno, sys_nerr;
-#if defined(bsd4_4)
+#if defined(bsd4_4) || defined(__NetBSD__)
 extern const char *const sys_errlist[];
 #else
 extern char *sys_errlist[];

gcc/protoize.c

@@ -79,7 +79,7 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
 #undef getopt
 
 extern int errno;
-#if defined(bsd4_4)
+#if defined(bsd4_4) || defined(__NetBSD__)
 extern const char *const sys_errlist[];
 #else
 extern char *sys_errlist[];