--- OLD/pbm/libpbm1.c	Thu Jan  1 00:00:00 1970
+++ NEW/pbm/libpbm1.c	Thu Jan  1 00:00:00 1970
@@ -19,7 +19,7 @@
 #else /*__STDC__*/
 #include <varargs.h>
 #endif /*__STDC__*/
-
+#include <errno.h>
 
 /* Variable-sized arrays. */
 
@@ -334,7 +334,6 @@
 #ifndef A_STRERROR
     extern char* sys_errlist[];
 #endif /* A_STRERROR */
-    extern int errno;
     char* e;
 
 #ifdef A_STRERROR
@@ -822,7 +821,7 @@
 
 #ifdef VMS
 /*
- * @(#)argproc.c 1.0 89/02/01		Mark Pizzolato (mark@infopiz.uucp)	
+ * @(#)argproc.c 1.0 89/02/01		Mark Pizzolato (mark@infopiz.uucp)
  */
 
 #ifndef lint
@@ -1005,11 +1004,11 @@
 	out = pipe_and_fork(subcmd);
 	outmode = "wb";
 	}
-	
+
     /* Check for input from a pipe (mailbox) */
 
     if(fstat(0, &statbuf) == 0){
-	if(strncmp(statbuf.st_dev, "MB", 2) == 0 || 
+	if(strncmp(statbuf.st_dev, "MB", 2) == 0 ||
 	    strncmp(statbuf.st_dev, "_MB", 3) == 0){
 
 	    /* Input from a pipe, reopen it in binary mode to disable	*/
@@ -1044,7 +1043,7 @@
         {
 #else
     if ((out != NULL) && (NULL == freopen(out, outmode, stdout, "mbc=32", "mbf=2")))
-	{	
+	{
 #endif
 	perror(ap);		/* Error, can't write or append	*/
 	exit(EXIT_ERR);		/* Is a fatal error		*/
@@ -1054,7 +1053,7 @@
 	/*
 	 * We are making an explicit output file, fstat the file and
          * declare exit handler to be able change the file to fixed length
-	 * records if necessary. 
+	 * records if necessary.
 	 */
 	char fname[256];
 	static int outfile_rundown(), check_outfile_filetype();
@@ -1067,7 +1066,7 @@
 	    stat_t *stat;		/* arg 2 */
 	    int exit_status;
 	    int skew[128];
-	} exit_block = 
+	} exit_block =
 	    { 0, outfile_rundown, 2, &exit_block.exit_status, &ofile_stat, 0 };
 
 	if ( fstat ( fileno(stdout), &ofile_stat ) == 0 )
@@ -1104,7 +1103,7 @@
 
     for ( p = binary_filetypes; *p != '\0'; p++ ) {
 	for ( t = p;
-	      (*p != '\0' ) && (strchr ( ", 	", *p ) == NULL); 
+	      (*p != '\0' ) && (strchr ( ", 	", *p ) == NULL);
 	     p++ ) *p = toupper(*p);
 	*p = '\0';
 
@@ -1143,7 +1142,7 @@
      */
     device.dsc$w_length = strlen ( statbuf->st_dev );
     status = sys$assign ( &device, &channel, 0, 0 );
-    if ((status & 1) == 0) { fprintf(stderr, 
+    if ((status & 1) == 0) { fprintf(stderr,
 	"assign error to %s (%d)\n", device.dsc$a_pointer, status);
 		return status; }
     code = DVI$_DEVCHAR;