spec: serialize make install to avoid libtool relink races

Libtool relinks sssdlib modules against pkglib libraries during install.
With parallel install, the relink can run before the target libraries
are in place, causing missing .so files in the buildroot.

Use -j1 for the install phase to guarantee correct ordering.

Signed-off-by: Alexander Bokovoy <abokovoy@redhat.com>

Author: abbra

contrib/sssd.spec.in

@@ -539,7 +539,10 @@ unset CK_TIMEOUT_MULTIPLIER
 
 %install
 
-%make_install
+# Serial install: libtool relinks sssdlib modules against pkglib
+# libraries during install.  Parallel install can relink before the
+# target libraries are in place, causing missing .so files.
+%make_install -j1
 
 # Prepare language files
 /usr/lib/rpm/find-lang.sh $RPM_BUILD_ROOT sssd