+# ------------------------------------------------------------------------------
+PKG_CHECK_MODULES(DBUS, [dbus-1 >= 1.3.2], have_dbus=yes, have_dbus=no])
+AS_IF([test "$have_dbus" = "yes"], [ AC_DEFINE(HAVE_DBUS, [1], [Define if dbus-1 is available]) ])
+AM_CONDITIONAL(HAVE_DBUS, [test "$have_dbus" = "yes"])
+
+# ------------------------------------------------------------------------------
+have_coverage=no
+AC_ARG_ENABLE(coverage, AS_HELP_STRING([--enable-coverage], [enable test coverage]))
+if test "x$enable_coverage" = "xyes" ; then
+ AC_CHECK_PROG(lcov_found, [lcov], [yes], [no])
+ if test "x$lcov_found" = xno ; then
+ AC_MSG_ERROR([*** lcov support requested but the program was not found])
+ else
+ lcov_version_major="`lcov --version | cut -d ' ' -f 4 | cut -d '.' -f 1`"
+ lcov_version_minor="`lcov --version | cut -d ' ' -f 4 | cut -d '.' -f 2`"
+ if test "$lcov_version_major" -eq 1 -a "$lcov_version_minor" -lt 10; then
+ AC_MSG_ERROR([*** lcov version is too old. 1.10 required])
+ else
+ have_coverage=yes
+ CC_CHECK_FLAGS_APPEND([with_coverage_cflags], [CFLAGS], [\
+ -fprofile-arcs \
+ -ftest-coverage])
+ AC_SUBST([OUR_CFLAGS], "$with_cflags $with_coverage_cflags")
+ fi
+ fi
+fi
+AM_CONDITIONAL(ENABLE_COVERAGE, [test "$have_coverage" = "yes"])