diff --git a/limit-smp-16-threads.patch b/limit-smp-16-threads.patch
new file mode 100644
index 0000000..0182de7
--- /dev/null
+++ b/limit-smp-16-threads.patch
@@ -0,0 +1,13 @@
+diff -Nur redhat-rpm-config-9.0.2-orig/macros redhat-rpm-config-9.0.2/macros
+--- redhat-rpm-config-9.0.2-orig/macros	2008-04-03 02:14:54.000000000 -0500
++++ redhat-rpm-config-9.0.2/macros	2008-05-20 13:33:15.000000000 -0500
+@@ -68,7 +68,8 @@
+ 
+ %_smp_mflags %([ -z "$RPM_BUILD_NCPUS" ] \\\
+ 	&& RPM_BUILD_NCPUS="`/usr/bin/getconf _NPROCESSORS_ONLN`"; \\\
+-	[ "$RPM_BUILD_NCPUS" -gt 1 ] && echo "-j$RPM_BUILD_NCPUS")
++        if [ "$RPM_BUILD_NCPUS" -gt 16 ]; then echo "-j16"; \\\
++        elif [ "$RPM_BUILD_NCPUS" -gt 1 ]; then echo "-j$RPM_BUILD_NCPUS"; fi)
+ 
+ #==============================================================================
+ # ---- Build policy macros.
diff --git a/redhat-rpm-config.spec b/redhat-rpm-config.spec
index f3b2ca6..9087d3c 100644
--- a/redhat-rpm-config.spec
+++ b/redhat-rpm-config.spec
@@ -1,12 +1,13 @@
 Summary: Red Hat specific rpm configuration files.
 Name: redhat-rpm-config
 Version: 9.0.3
-Release: 3%{?dist}
+Release: 4%{?dist}
 # No version specified.
 License: GPL+
 Group: Development/System
 Source: redhat-rpm-config-%{version}.tar.bz2
 Patch0: redhat-rpm-config-9.0.3-fix-requires.patch
+Patch1: limit-smp-16-threads.patch 
 BuildArch: noarch
 Requires: mktemp
 BuildRoot: %{_tmppath}/%{name}-root
@@ -17,6 +18,7 @@ Red Hat specific rpm configuration files.
 %prep
 %setup -q
 %patch0 -p0
+%patch1 -p1
 
 %install
 make DESTDIR=${RPM_BUILD_ROOT} install
@@ -29,6 +31,9 @@ rm -rf ${RPM_BUILD_ROOT}
 %{_prefix}/lib/rpm/redhat
 
 %changelog
+* Mon Feb 16 2009 Dennis Gilmore <dennis@ausil.us> - 9.0.3-4
+- limit _smp_flags to -j16
+
 * Wed Sep  3 2008 Tom "spot" Callaway <tcallawa@redhat.com> - 9.0.3-3
 - fix license tag
 - nuke ancient conflicts