QPID-3284: Eliminated warnings from gcc 4.6 compiler

- Removed a bunch of variables set but not further used.
- Rejigged some asserts which would now have unused vars
  if compiler -DNDEBUG

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk/qpid@1133166 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 1 insertions, 2 deletions

diff --git a/cpp/src/qpid/sys/posix/LockFile.cpp b/cpp/src/qpid/sys/posix/LockFile.cpp
index 1862ff6ac9..f5a6c292cb 100755
--- a/cpp/src/qpid/sys/posix/LockFile.cpp
+++ b/cpp/src/qpid/sys/posix/LockFile.cpp
@@ -58,8 +58,7 @@ LockFile::~LockFile() {
     if (impl) {
         int f = impl->fd;
         if (f >= 0) {
-            int unused_ret;
-            unused_ret = ::lockf(f, F_ULOCK, 0); // Suppress warnings about ignoring return value.
+            (void) ::lockf(f, F_ULOCK, 0); // Suppress warnings about ignoring return value.
             ::close(f);
             impl->fd = -1;
         }