diff --git a/engines/guasi.c b/engines/guasi.c
index 6faae8d..c9c7429 100644
--- a/engines/guasi.c
+++ b/engines/guasi.c
@@ -3,12 +3,7 @@
  *
  * IO engine using the GUASI library.
  *
- * This is currently disabled. To enable it, execute:
- *
- * $ export EXTFLAGS="-DFIO_HAVE_GUASI"
- * $ export EXTLIBS="-lguasi"
- *
- * before running make. You'll need the GUASI lib as well:
+ * Before running make. You'll need the GUASI lib as well:
  *
  * http://www.xmailserver.org/guasi-lib.html
  *
diff --git a/engines/rdma.c b/engines/rdma.c
index a847b54..e1fb380 100644
--- a/engines/rdma.c
+++ b/engines/rdma.c
@@ -5,12 +5,7 @@
  * Supports both RDMA memory semantics and channel semantics
  *   for the InfiniBand, RoCE and iWARP protocols.
  *
- * This I/O engine is disabled by default. To enable it, execute:
- *
- * $ export EXTFLAGS+=" -DFIO_HAVE_RDMA "
- * $ export EXTLIBS+=" -libverbs -lrdmacm "
- *
- * before running make. You will need the Linux RDMA software as well, either
+ * You will need the Linux RDMA software installed, either
  * from your Linux distributor or directly from openfabrics.org:
  *
  * http://www.openfabrics.org/downloads/OFED/