Adding test coverage

configure.ac

@@ -159,6 +159,26 @@ if test x"$se_class3" = x"yes"; then
         AC_DEFINE([SE_CLASS3],[],[Security enhancement class 3])
 fi
 
+###### Check for test coverage
+
+AC_MSG_CHECKING(whether to build with test coverage)
+test_cov=no
+AC_ARG_ENABLE(test-coverage,
+        AC_HELP_STRING(
+            [--enable-test-coverage],
+            [enable test coverage]
+        ),
+        test_cov="$enableval"
+)
+
+
+
+AC_MSG_RESULT($test_cov)
+if test x"$test_cov" = x"yes"; then
+        AC_DEFINE([TEST_COVERAGE_MODE],[],[Test coverage mode])
+        CXXFLAGS="$CXXFLAGS  -fprofile-arcs -ftest-coverage "
+fi
+
 
 ####### include openfpm_devices include path