--- rpm-4.16.0/build/files.c.orig	2020-12-18 19:36:49.000000000 +0100
+++ rpm-4.16.0/build/files.c	2020-12-18 19:48:35.711529643 +0100
@@ -2394,14 +2394,16 @@
 	appendStringBuf(docScript, efn);
 	appendStringBuf(docScript, " $");
 	appendStringBuf(docScript, sdenv);
-	appendLineStringBuf(docScript, " ||:");
 	free(efn);
     }
 
     if (install) {
+	int _missing_doc_files_terminate_build =
+	    rpmExpandNumeric("%{?_missing_doc_files_terminate_build}");
 	if (doScript(spec, RPMBUILD_STRINGBUF, sdname,
 			    getStringBuf(docScript), test, NULL)) {
-	    fl->processingFailed = 1;
+	    if (_missing_doc_files_terminate_build)
+		fl->processingFailed = 1;
 	}
     }