Add configure script

Get rid of all the fragile guessing and checking of features,
and roll a configure script instead.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/HOWTO b/HOWTO
index 0930f33..014b7f3 100644
--- a/HOWTO
+++ b/HOWTO
@@ -844,9 +844,7 @@
 numa_cpu_nodes=str Set this job running on spcified NUMA nodes' CPUs. The
 		arguments allow comma delimited list of cpu numbers,
 		A-B ranges, or 'all'. Note, to enable numa options support,
-		export the following environment variables,
-			export EXTFLAGS+=" -DFIO_HAVE_LIBNUMA "
-			export EXTLIBS+=" -lnuma "
+		fio must be built on a system with libnuma-dev(el) installed.
 
 numa_mem_policy=str Set this job's memory policy and corresponding NUMA
 		nodes. Format of the argements: