make_pg_buildext_parallel.patch

--- /usr/bin/pg_buildext	2016-08-17 11:12:46.000000000 -0600
+++ /usr/bin/pg_buildext	2016-08-17 11:13:31.000000000 -0600
@@ -66,11 +66,13 @@
     if [ "$opt" ]; then
         cflags="$(echo $opt | sed -e "s:%v:$1:g")"
     fi
+    procs="$(nproc)"
+    mjobs="$(expr $procs + 1)"
 
     mkdir -p $vtarget
     # if a Makefile was created by configure, use it, else the top level Makefile
     [ -f $vtarget/Makefile ] || makefile="-f $srcdir/Makefile"
-    make -C $vtarget ${makefile:-} ${cflags:+CFLAGS="$cflags"} PG_CONFIG="$pgc" VPATH="$srcdir" srcdir="$srcdir" USE_PGXS=1
+    make -j${mjobs} -C $vtarget ${makefile:-} ${cflags:+CFLAGS="$cflags"} PG_CONFIG="$pgc" VPATH="$srcdir" srcdir="$srcdir" USE_PGXS=1
 }
 
 install() {