diff -dur mine-0.24/check.c mine-0.24-patch/check.c
--- mine-0.24/check.c	2005-09-30 12:34:36.000000000 +0200
+++ mine-0.24-patch/check.c	2006-04-27 20:14:38.000000000 +0200
@@ -72,9 +72,14 @@
 		strtok(buffer, " \t\n");
 		filename = strtok(NULL, "\n");
 
-		if ( md5sum_check(root, filename) ) {
-			printf("Modified/duplicate "
-			       "file: %s\n", filename);
+		int result = 0;
+		if ( result = md5sum_check(root, filename) ) {
+			switch (result) {
+			    case MD5SUM_CHECK_DUPLICATE: printf("Duplicate "); break;
+			    case MD5SUM_CHECK_MODIFIED: printf("Modified "); break;
+			    case MD5SUM_CHECK_SHARED: printf("Shared "); break;
+			}
+			printf("file: %s\n", filename);
 			modified++;
 		}
 	}
diff -dur mine-0.24/install.c mine-0.24-patch/install.c
--- mine-0.24/install.c	2006-04-27 21:06:40.000000000 +0200
+++ mine-0.24-patch/install.c	2006-04-27 20:15:52.000000000 +0200
@@ -256,6 +256,7 @@
 			unlink(buffer3);
 		}
 
+		int result = 0;
 		if (patterns && glob_check(patterns, filename)) {
 			if ( mode_verbose ) {
 				printf("Exclude glob "
@@ -265,15 +266,22 @@
 			if (TH_ISREG(t) && tar_skip_regfile(t) != 0)
 				goto error_errno;
 		}
-		else if ( ! mode_force && md5sum_check(root, filename) ) {
+		else if ( ! mode_force && (result = md5sum_check(root, filename)) ) {
+			if ( ! mode_test || ! mode_verbose )
+				printf("%s: ", pname);
+			printf("WARNING: Skip ");
+			switch (result) {
+			    case MD5SUM_CHECK_DUPLICATE: printf("duplicate "); break;
+			    case MD5SUM_CHECK_MODIFIED: printf("modified "); break;
+			    case MD5SUM_CHECK_SHARED: printf("shared "); break;
+			}
+			printf("file %s", filename);
 			if ( mode_test && mode_verbose ) {
-				printf("WARNING: Skip modified/duplicate "
-				       "file %s:\n", filename);
+				printf(":\n");
 				th_print_long_ls(t);
-			} else {
-				printf("%s: WARNING: Skip modified/duplicate "
-				       "file: %s\n", pname, filename);
-			}
+			} else
+				printf(".\n");
+
 			if ( mode_test ) {
 				if (TH_ISREG(t) && tar_skip_regfile(t) != 0)
 							goto error_errno;
diff -dur mine-0.24/md5sum.c mine-0.24-patch/md5sum.c
--- mine-0.24/md5sum.c	2005-08-09 12:57:29.000000000 +0200
+++ mine-0.24-patch/md5sum.c	2006-04-27 21:11:22.000000000 +0200
@@ -20,6 +20,7 @@
 #include <stdio.h>
 #include <dirent.h>
 #include <string.h>
+#include <sys/types.h>
 #include <sys/stat.h>
 #include <unistd.h>
 
@@ -37,35 +38,39 @@
 	struct stat statbuf;
 
 	snprintf(realfilename, 1024, "%s/%s", root, filename);
-	return (stat(realfilename, &statbuf) != 0 || S_ISFIFO(statbuf.st_mode))
-		? "" : md5_file(realfilename);
+	if (stat(realfilename, &statbuf) != 0)
+		return "";
+	else if (!S_ISREG(statbuf.st_mode))
+		return "X";
+	else
+		return md5_file(realfilename);
 }
 
-/* Returns 1 if file is duplicate, 2 if file is modified. */
+/* Returns if file is unmodified, modified, duplicate, or shared. */
 int md5sum_check(char * root, char * filename)
 {
 	char *md5_f, *md5_d;
 
 	md5_f = md5sum_create(root, filename);
 	md5_d = memdb_get(&md5_memdb, filename);
-	
-	if (md5_f == NULL || strcmp(md5_f, "") == 0)
-		return 0;
+
+	if (strcmp(md5_f, "") == 0)
+		return MD5SUM_CHECK_OK;
 	else if (md5_d == NULL)
-		return 1;
-	else if (strcmp(md5_f, md5_d) == 0)
-		return 0;
+		return MD5SUM_CHECK_DUPLICATE;
+	else if (strcmp(md5_f, md5_d) == 0 || strcmp(md5_d, "X") == 0)
+		return MD5SUM_CHECK_OK;
+	else if (strcmp(md5_d, "Duplicate entry") == 0)
+		return MD5SUM_CHECK_SHARED;
 	else
-		return 2;
+		return MD5SUM_CHECK_MODIFIED;
 }
 
 void md5sum_initdb(char * root, int verbose)
 {
 	struct dirent *md5_dent;
-	char buffer[1024], buffer2[1024];
+	char buffer[1024];
 	char *md5sum, *filename;
-	const char const *admdirs[6] = 
-	{"cksums", "dependencies", "descs", "flists", "md5sums", "packages"};
 	FILE *f;
 	DIR *d;
 
@@ -81,16 +86,6 @@
 		                       root, md5_dent->d_name);
 		f = fopen(buffer, "r");
 		if ( f != NULL ) {
-			/* Add the /var/adm files of each package to the 
-			   md5sum memdb so md5sum_check() recognizes them. */
-			int n;
-			for (n = 0; n < 6; n++) {
-				snprintf(buffer2, 1024, "var/adm/%s/%s",
-					admdirs[n], md5_dent->d_name);
-				memdb_put(&md5_memdb, buffer2, 
-					md5sum_create(root, buffer2));
-			}
-
 			while (fgets(buffer, 1024, f) != NULL) {
 				md5sum = strtok(buffer, " \t\n");
 				filename = strtok(NULL, "\n");
diff -dur mine-0.24/md5sum.h mine-0.24-patch/md5sum.h
--- mine-0.24/md5sum.h	2005-03-23 09:51:06.000000000 +0100
+++ mine-0.24-patch/md5sum.h	2006-04-27 20:14:38.000000000 +0200
@@ -20,6 +20,11 @@
 #ifndef MD5SUM_H
 #define MD5SUM_H
 
+#define MD5SUM_CHECK_OK 0
+#define MD5SUM_CHECK_DUPLICATE 1
+#define MD5SUM_CHECK_MODIFIED 2
+#define MD5SUM_CHECK_SHARED 3
+
 char * md5sum_create(char * root, char * filename);
 int md5sum_check(char * root, char * filename);
 void md5sum_initdb(char * root, int verbose);
diff -dur mine-0.24/remove.c mine-0.24-patch/remove.c
--- mine-0.24/remove.c	2005-08-09 12:57:29.000000000 +0200
+++ mine-0.24-patch/remove.c	2006-04-27 20:14:38.000000000 +0200
@@ -120,11 +120,17 @@
 		flist = (flist_tmp=flist)->next;
 		free(flist_tmp);
 
-		if ( ! mode_force && md5sum_check(root, filename) ) {
+		int result = 0;
+		if ( ! mode_force && (result = md5sum_check(root, filename)) ) {
 			if ( ! mode_test || ! mode_verbose )
 				printf("%s: ", package);
-			printf("WARNING: Skip modified/duplicate "
-			       "file: %s\n", filename);
+			printf("WARNING: Skip ");
+			switch (result) {
+			    case MD5SUM_CHECK_DUPLICATE: printf("duplicate "); break;
+			    case MD5SUM_CHECK_MODIFIED: printf("modified "); break;
+			    case MD5SUM_CHECK_SHARED: printf("shared "); break;
+			}
+			printf("file %s:\n", filename);
 		}
 		else
 		if ( mode_test ) {