Index: gzip.c
===================================================================
RCS file: /sources/gzip/gzip/gzip.c,v
retrieving revision 1.21
diff -u -r1.21 gzip.c
--- gzip.c	25 Nov 2007 17:19:46 -0000	1.21
+++ gzip.c	17 Sep 2008 19:33:50 -0000
@@ -182,6 +182,7 @@
 
 int ascii = 0;        /* convert end-of-lines to local OS conventions */
 int to_stdout = 0;    /* output to stdout (-c) */
+int keep = 0;         /* keep original file (-k) */
 int decompress = 0;   /* decompress (-d) */
 int force = 0;        /* don't ask questions, compress links (-f) */
 int no_name = -1;     /* don't save or restore the original file name */
@@ -267,6 +268,7 @@
  /* {"encrypt",    0, 0, 'e'},    encrypt */
     {"force",      0, 0, 'f'}, /* force overwrite of output file */
     {"help",       0, 0, 'h'}, /* give help */
+    {"keep",       0, 0, 'k'}, /* keep original file */
  /* {"pkzip",      0, 0, 'k'},    force output in pkzip format */
     {"list",       0, 0, 'l'}, /* list .gz file contents */
     {"license",    0, 0, 'L'}, /* display software license */
@@ -342,6 +344,7 @@
 /*  -e, --encrypt     encrypt */
  "  -f, --force       force overwrite of output file and compress links",
  "  -h, --help        give this help",
+ "  -k, --keep        keep original file",
 /*  -k, --pkzip       force output in pkzip format */
  "  -l, --list        list compressed file contents",
  "  -L, --license     display software license",
@@ -447,7 +450,7 @@
     z_suffix = Z_SUFFIX;
     z_len = strlen(z_suffix);
 
-    while ((optc = getopt_long (argc, argv, "ab:cdfhH?lLmMnNqrS:tvVZ123456789",
+    while ((optc = getopt_long (argc, argv, "ab:cdfhH?klLmMnNqrS:tvVZ123456789",
 				longopts, (int *)0)) != -1) {
 	switch (optc) {
         case 'a':
@@ -470,6 +473,8 @@
 	    force++; break;
 	case 'h': case 'H':
 	    help(); do_exit(OK); break;
+	case 'k':
+	    keep = 1; break;
 	case 'l':
 	    list = decompress = to_stdout = 1; break;
 	case 'L':
@@ -846,7 +851,7 @@
     if (close (ifd) != 0)
       read_error ();
 
-    if (!to_stdout)
+    if (!to_stdout && !keep)
       {
 	sigset_t oldset;
 	int unlink_errno;