--- squashfs-tools/mksquashfs.c	2005-09-08 18:34:28.000000000 -0400
+++ squashfs-tools-suf/mksquashfs.c	2006-01-26 01:32:10.000000000 -0500
@@ -200,6 +200,9 @@ int sorted = 0;
 /* save destination file name for deleting on error */
 char *destination_file = NULL;
 
+/* append suffix for already existing entires */
+char *append_suffix = NULL;
+
 /* structure to used to pass in a pointer or an integer
  * to duplicate buffer read helper functions.
  */
@@ -1331,7 +1334,15 @@ int encomp_opendir(char *pathname, struc
 			if(n == dir->count)
 				break;
 			ERROR("Source directory entry %s already used! - trying ", dir_name);
-			sprintf(dir_name, "%s_%d", basename, pass++);
+			if(append_suffix) {
+			   if(pass == 1)
+			      sprintf(dir_name, "%s%s", basename, append_suffix);
+			   else
+			      sprintf(dir_name, "%s%s_%d", basename, append_suffix, pass-1);
+			   pass++;
+			}
+			else
+			   sprintf(dir_name, "%s_%d", basename, pass++);
 			ERROR("%s\n", dir_name);
 		}
 		add_dir_entry(dir_name, source_path[i], NULL, dir);
@@ -1729,6 +1740,14 @@ int main(int argc, char *argv[])
 
 		else if(strcmp(argv[i], "-keep-as-directory") == 0)
 			keep_as_directory = TRUE;
+		
+		else if(strcmp(argv[i], "-append-suffix") == 0) {
+		   if(++i == argc) {
+		      ERROR("%s: -append-suffix: missing name\n", argv[0]);
+		      exit(1);
+		   }
+		   append_suffix = argv[i];
+		}
 
 		else if(strcmp(argv[i], "-root-becomes") == 0) {
 			if(++i == argc) {
@@ -1757,6 +1776,8 @@ printOptions:
 			ERROR("-keep-as-directory\tif one source directory is specified, create a root\n");
 			ERROR("\t\t\tdirectory containing that directory, rather than the\n");
 			ERROR("\t\t\tcontents of the directory\n");
+			ERROR("-append-suffix <name>\twhen appending, source files/directories having the\n");
+			ERROR("\t\t\tsame name as the destination filesystem will be appended that suffix.\n");
 			ERROR("-root-becomes <name>\twhen appending source files/directories, make the\n");
 			ERROR("\t\t\toriginal root become a subdirectory in the new root\n");
 			ERROR("\t\t\tcalled <name>, rather than adding the new source items\n");
@@ -1842,7 +1863,7 @@ printOptions:
 			fclose(fd);
 		} else if(strcmp(argv[i], "-e") == 0)
 			break;
-		else if(strcmp(argv[i], "-b") == 0 || strcmp(argv[i], "-root-becomes") == 0 || strcmp(argv[i], "-sort") == 0)
+		else if(strcmp(argv[i], "-b") == 0 || strcmp(argv[i], "-root-becomes") == 0 || strcmp(argv[i], "-sort") == 0 || strcmp(argv[i], "-append-suffix") == 0)
 			i++;
 
 	if(i != argc) {
@@ -1860,7 +1881,7 @@ printOptions:
 			sorted ++;
 		} else if(strcmp(argv[i], "-e") == 0)
 			break;
-		else if(strcmp(argv[i], "-b") == 0 || strcmp(argv[i], "-root-becomes") == 0 || strcmp(argv[i], "-ef") == 0)
+		else if(strcmp(argv[i], "-b") == 0 || strcmp(argv[i], "-root-becomes") == 0 || strcmp(argv[i], "-ef") == 0 || strcmp(argv[i], "-append-suffix") == 0)
 			i++;
 
 	if(delete) {