--- rpm-5.4.10/build/files.c.twice_terminate~	2012-07-10 20:18:14.613329633 +0200
+++ rpm-5.4.10/build/files.c	2012-07-10 20:18:14.677328833 +0200
@@ -1329,7 +1329,7 @@ static rpmuint32_t getDigestAlgo(Header
  * @param h
  * @param isSrc
  */
-static void genCpioListAndHeader(/*@partial@*/ FileList fl,
+static rpmRC genCpioListAndHeader(/*@partial@*/ FileList fl,
 		rpmfi * fip, Header h, int isSrc)
 	/*@globals rpmGlobalMacroContext, h_errno, fileSystem, internalState @*/
 	/*@modifies h, *fip, fl->processingFailed, fl->fileList,
@@ -1349,6 +1349,7 @@ static void genCpioListAndHeader(/*@part
     rpmuint32_t dalgo = getDigestAlgo(h, isSrc);
     char buf[BUFSIZ];
     int i, xx;
+    rpmRC rc = RPMRC_OK;
 
 memset(buf, 0, sizeof(buf));	/* XXX valgrind on rhel6 beta pickier */
 
@@ -1377,9 +1378,14 @@ memset(buf, 0, sizeof(buf));	/* XXX valg
 	    /* file flags */
 	    flp[1].flags |= flp->flags;	
 
-	    if (!(flp[1].flags & RPMFILE_EXCLUDE))
-		rpmlog(RPMLOG_WARNING, _("File listed twice: %s\n"),
+	    if (!(flp[1].flags & RPMFILE_EXCLUDE)) {
+		int terminate = rpmExpandNumeric("%{?_files_listed_twice_terminate_build}");
+
+		rpmlog(terminate ? RPMLOG_ERR : RPMLOG_WARNING, _("File listed twice: %s\n"),
 			flp->fileURL);
+		if (terminate)
+		    rc = RPMRC_FAIL;
+	    }
    
 	    /* file mode */
 	    if (S_ISDIR(flp->fl_mode)) {
@@ -1792,6 +1798,8 @@ if (_rpmbuildFlags & 4) {
 	fi = rpmfiFree(fi);
     /*@=compdef@*/
   }
+
+  return rc;
 }
 
 /**
@@ -2514,7 +2522,8 @@ static rpmRC processPackageFiles(Spec sp
 			"PartialHardlinkSets", "4.0.4-1");
 
     /* XXX should tags be added if filelist is empty? */
-    genCpioListAndHeader(&fl, &pkg->fi, pkg->header, 0);
+    if (genCpioListAndHeader(&fl, &pkg->fi, pkg->header, 0) != RPMRC_OK)
+	fl.processingFailed = 1;
 
     if (spec->timeCheck)
 	timeCheck(spec->timeCheck, pkg->header);
@@ -2828,7 +2837,7 @@ int processSourceFiles(Spec spec)
 
     /* XXX should tags be added if filelist is empty? */
     spec->fi = NULL;
-    genCpioListAndHeader(&fl, &spec->fi, spec->sourceHeader, 1);
+    rc = genCpioListAndHeader(&fl, &spec->fi, spec->sourceHeader, 1);
 
 exit:
     *sfp = rpmiobFree(*sfp);
--- rpm-5.4.10/macros/mandriva.in.twice_terminate~	2012-07-10 20:18:14.000000000 +0200
+++ rpm-5.4.10/macros/mandriva.in	2012-07-10 20:18:32.060111516 +0200
@@ -128,6 +128,7 @@ end\
 
 %_duplicate_files_terminate_build	1
 %_unpackaged_subdirs_terminate_build	0
+%_files_listed_twice_terminate_build	1
 
 %_build_pkgcheck_set /usr/bin/rpmlint -T -f %{_sourcedir}/%{name}.rpmlintrc
 %_build_pkgcheck_srpm /usr/bin/rpmlint -T -f %{_sourcedir}/%{name}.rpmlintrc