[PATCH] Update xfstests' README to document method/necessity

[robert herndon]

From: robert herndon <rherndon at elm.eagan>

---
 README |   11 +++++++++++
 1 files changed, 11 insertions(+), 0 deletions(-)

diff --git a/README b/README
index 375e07c..f9725b4 100644
--- a/README
+++ b/README
@@ -18,6 +18,17 @@ Preparing system for tests (IRIX and Linux):
 
     - compile XFS into your kernel or load XFS modules
     - install user tools including mkfs.xfs, xfs_db & xfs_bmap
+    - install header files required to build xfstests' programs:
+
+           # cd <...>/xfsprogs
+           # make install-qa
+
+           % cd <...>/xfstests
+           % make xfstests
+
+      This creates the directory /usr/include/xfs and installs
+      files there that are required to compile the programs in
+      this directory.
     - If you wish to run the udf components of the suite install 
       mkfs_udf and udf_db for IRIX and mkudffs for Linux. Also download and 
       build the Philips UDF Verification Software from 
-- 
1.5.6