diff -Nru rpm-4.14.2.1.orig/macros.in rpm-4.14.2.1/macros.in
--- rpm-4.14.2.1.orig/macros.in	2019-07-24 09:51:46.612355870 +0200
+++ rpm-4.14.2.1/macros.in	2019-07-24 09:53:58.089565829 +0200
@@ -272,10 +272,10 @@
 %_srcrpmdir		%{_topdir}/SRPMS
 
 #	The directory where buildroots will be created.
-%_buildrootdir		%{_topdir}/BUILDROOT
+%_buildrootdir		%{_tmppath}
 
 #	Build root path, where %install installs the package during build.
-%buildroot		%{_buildrootdir}/%{NAME}-%{VERSION}-%{RELEASE}.%{_arch}
+%buildroot		%{_tmppath}/%{NAME}-%{VERSION}-root
 
 #	Directory where temporaray files can be created.
 %_tmppath		%{_var}/tmp