always select pthreads

nspr/nspr.pc

@@ -6,5 +6,5 @@ includedir=@l_prefix@/include
 Name: Mozilla NSPR
 Description: Mozilla Netscape Portable Runtime (NSPR)
 Version: @version@
-Libs: -L${libdir}/nspr -lplds4 -lplc4 -lnspr4
+Libs: -pthread -L${libdir}/nspr -lplds4 -lplc4 -lnspr4
 Cflags: -I${includedir}/nspr -I${includedir}

nspr/nspr.spec

@@ -73,6 +73,7 @@ AutoReqProv:  no
     CFLAGS="%{l_cflags -O}" \
     ./configure \
         --prefix=%{l_prefix} \
+        --with-pthreads \
         --disable-debug
     %{l_make} %{l_mflags -O}