diff -urN rpm-4.0.4.org/build/files.c rpm-4.0.4/build/files.c
--- rpm-4.0.4.org/build/files.c	Sun Jul 28 00:22:46 2002
+++ rpm-4.0.4/build/files.c	Sun Jul 28 00:23:54 2002
@@ -90,6 +90,10 @@
 /*@unchecked@*/
 static int multiLib = 0;	/* MULTILIB */
 
+/* list of files */
+static StringBuf check_fileList = NULL;
+static int check_fileListLen = 0;
+
 /**
  * Package file tree walk data.
  */
@@ -1593,6 +1597,13 @@
 	(unsigned)fileMode, fileUname, fileGname, fileURL);
 #endif
 
+    /* S_XXX macro must be consistent with type in find call at check-files script */
+    if (S_ISREG(fileMode)) {
+      appendStringBuf(check_fileList, diskURL);
+      appendStringBuf(check_fileList, "\n");
+      check_fileListLen += strlen(diskURL) + 1;
+    }
+
     /* Add to the file list */
     if (fl->fileListRecsUsed == fl->fileListRecsAlloced) {
 	fl->fileListRecsAlloced += 128;
@@ -2655,11 +2671,54 @@
     versions = hfd(versions, dvt);
 }
 
+static int checkFiles(StringBuf fileList, int fileListLen)
+{
+    StringBuf readBuf = NULL;
+    char* myargv[3] = {NULL, NULL, NULL};
+    int rc = 0;
+    char *buf;
+    
+    myargv[0] = rpmExpand("%{__check_files}", NULL);
+    if (!(myargv[0] && *myargv[0] != '%')) {
+        rc = -1;
+        goto exit;
+    }    
+    myargv[1] = rpmExpand("%{buildroot}", NULL);
+    if (!(myargv[1] && *myargv[1] != '%')) {
+        rc = -1;
+        goto exit;
+    }
+    
+    rpmMessage(RPMMESS_NORMAL, _("Searching for omited files: (using %s)...\n"),
+               myargv[0]);
+		    
+    readBuf = getOutputFrom(NULL, myargv, getStringBuf(fileList), fileListLen, 0);
+    
+    if (readBuf) {
+        buf = getStringBuf(readBuf);
+        if ((*buf != '\0') && (*buf != '\n'))
+            rpmMessage(RPMMESS_WARNING, \
+	                _("found installed files not placed in any package:\n---\n%s---\n"),
+                       buf);
+    }
+    
+exit:
+    
+    freeStringBuf(readBuf);
+    _free(myargv[0]);
+    _free(myargv[1]);
+
+    return rc;
+}
+
 int processBinaryFiles(Spec spec, int installSpecialDoc, int test)
 {
     Package pkg;
     int res = 0;
     
+    check_fileList = newStringBuf();
+    check_fileListLen = 0;
+    
     for (pkg = spec->packages; pkg != NULL; pkg = pkg->next) {
 	const char *n, *v, *r;
 	int rc;
@@ -2687,5 +2746,15 @@
 	/*@=noeffect@*/
     }
 
+    /* Now we have in fileList list of files from all packages.
+     * We pass it to a script which do the work of finding missing
+     * and duplicated files.
+     */
+    
+    if (res == 0) 
+        checkFiles(check_fileList, check_fileListLen);
+    
+    freeStringBuf(check_fileList);
+    
     return res;
 }
diff -Nur rpm-4.0.4.orig/platform.in rpm-4.0.4/platform.in
--- rpm-4.0.4.orig/platform.in	Sun Jun 30 00:07:54 2002
+++ rpm-4.0.4/platform.in	Sun Jun 30 00:13:45 2002
@@ -89,6 +89,10 @@
 #	Expanded at end of %install scriptlet.
 #
 
+# Gets file list on input and buildroot as first parameter
+# and returns list of files not found in any package
+%__check_files		@prefix@/lib/rpm/check-files
+
 %__arch_install_post   @ARCH_INSTALL_POST@
 
 %__os_install_post    \