diff --git a/configure.ac b/configure.ac
index 93278b5..173f096 100644
--- a/configure.ac
+++ b/configure.ac
@@ -48,6 +48,8 @@ AC_ARG_ENABLE([compile-warnings],
          [PICKY_CXXFLAGS="$PICKY_CXXFLAGS -Wno-error=unused-parameter"], [], [-Werror])
        AX_CHECK_COMPILE_FLAG([-Wno-error=c++11-extensions],
          [PICKY_CXXFLAGS="$PICKY_CXXFLAGS -Wno-error=c++11-extensions"], [], [-Werror])
+       AX_CHECK_COMPILE_FLAG([-Wno-error=deprecated-declarations],
+         [PICKY_CXXFLAGS="$PICKY_CXXFLAGS -Wno-error=deprecated-declarations"], [], [-Werror])
        AC_LANG_POP(C++)
        ;;
      *)