diff -up redhat-rpm-config-9.1.0/macros.ncpus redhat-rpm-config-9.1.0/macros

--- redhat-rpm-config-9.1.0/macros.ncpus	2013-06-27 09:54:38.663039820 +0300

+++ redhat-rpm-config-9.1.0/macros	2013-06-27 09:54:50.746135882 +0300

@@ -71,10 +71,13 @@

 	infodir=%{?buildroot:%{buildroot}}%{_infodir} \\\

   install

+# Maximum number of CPU's to use when building, 0 for unlimited.

+%_smp_ncpus_max 16

 %_smp_mflags %([ -z "$RPM_BUILD_NCPUS" ] \\\

 	&& RPM_BUILD_NCPUS="`/usr/bin/getconf _NPROCESSORS_ONLN`"; \\\

-        if [ "$RPM_BUILD_NCPUS" -gt 16 ]; then echo "-j16"; \\\

-        elif [ "$RPM_BUILD_NCPUS" -gt 1 ]; then echo "-j$RPM_BUILD_NCPUS"; fi)

+        ncpus_max=%{?_smp_ncpus_max}; \\\

+        if [ -n "$ncpus_max" ] && [ "$ncpus_max" -gt 0 ] && [ "$RPM_BUILD_NCPUS" -gt "$ncpus_max" ]; then RPM_BUILD_NCPUS="$ncpus_max"; fi; \\\

+        if [ "$RPM_BUILD_NCPUS" -gt 1 ]; then echo "-j$RPM_BUILD_NCPUS"; fi)

 #==============================================================================

 # ---- Build policy macros.