run 'make check' in parallel to speed up the build

coreutils.spec

@@ -1,7 +1,7 @@
 Summary: A set of basic GNU tools commonly used in shell scripts
 Name:    coreutils
 Version: 8.23
-Release: 10%{?dist}
+Release: 11%{?dist}
 License: GPLv3+
 Group:   System Environment/Base
 Url:     http://www.gnu.org/software/coreutils/
@@ -179,7 +179,7 @@ make all %{?_smp_mflags}
 sed -i -e 's,/etc/utmp,/var/run/utmp,g;s,/etc/wtmp,/var/run/wtmp,g' doc/coreutils.texi
 
 %check
-make check
+make check %{?_smp_mflags}
 
 %install
 make DESTDIR=$RPM_BUILD_ROOT install
@@ -373,7 +373,10 @@ fi
 %{_sbindir}/chroot
 
 %changelog
-* Wed May 13 2015 Ondrej Oprala <ooprala@redhat.com - 8.23-10
+* Thu May 14 2015 Kamil Dudka <kdudka@redhat.com> - 8.23-11
+- run 'make check' in parallel to speed up the build
+
+* Wed May 13 2015 Ondrej Oprala <ooprala@redhat.com> - 8.23-10
 - sort - fix buffer overflow in some case conversions
   - patch by Pádraig Brady