rw_PROG_CXX_WORKS
AM_CONDITIONAL([CXX_WORKS], [test "x$rw_cv_prog_cxx_works" = "xyes"])
-ax_CHECK_SDT_WORKS
-AM_CONDITIONAL([SDT_WORKS], [test "x$ax_check_sdt_works" = "xyes"])
+LTTNG_CHECK_SDT_WORKS
+AM_CONDITIONAL([SDT_WORKS], [test "x$lttng_cv_sdt_works" = "xyes"])
# Checks for programs.
AC_PROG_GREP