libgfapi: Fix to compilation failure/warnings for examples/glfsxmp.c

The comilation of glfsxmp.c i.e. "make glfsxmp" was failing
with "undefined reference to `clock_gettime'" error.

Fixed all compilation warnings for unused variables and
wrong formart specifier in printf e.g. : "format ‘%d’ expects
argument of type ‘int’, but argument 3 has type ‘__syscall_slong_t’
[-Wformat]"

Also added the compilation steps for glfsxmp.c in the
README file

Change-Id: I399ec7c9ad7b6412463c89099d63922caef6749e
Signed-off-by: Lalatendu Mohanty <lmohanty@redhat.com>
Reviewed-on: http://review.gluster.org/6085
Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
Reviewed-by: Santosh Pradhan <spradhan@redhat.com>
Tested-by: Shyamsundar Ranganathan <srangana@redhat.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>

1 files changed, 17 insertions, 0 deletions

diff --git a/api/examples/README b/api/examples/README
index 8f0bab697d3..4d2b521f779 100644
--- a/api/examples/README
+++ b/api/examples/README
@@ -17,3 +17,20 @@ install glusterfs-api RPM.
 Make sure your LDFLAGS includes -L/path/to/lib where libgfapi.so is
 installed and -I/path/to/include/glusterfs where the 'api' directory
 containing the headers are available.
+
+glfsxmp.c
+=========
+
+glfsxmp.c is an example application which uses libgfapi
+
+Compilation Steps For glfsxmp.c
+===============================
+
+1. $./autogen.sh
+2. $./configure
+
+Note: Before running ./configure , as mentioned above, you need to
+      take care of #1 or #2 i.e. pkg-config path or LDFLAGS and
+      -I/<path> with correct values.
+
+3. $make glfsxmp