--- a/config.m4
+++ b/config.m4
@@ -425,6 +425,7 @@
         AX_CHECK_COMPILE_FLAG(-Wloop-analysis,                  _MAINTAINER_CFLAGS="$_MAINTAINER_CFLAGS -Wloop-analysis")
         AX_CHECK_COMPILE_FLAG(-Wuninitialized,                  _MAINTAINER_CFLAGS="$_MAINTAINER_CFLAGS -Wuninitialized")
         AX_CHECK_COMPILE_FLAG(-Wno-missing-field-initializers,  _MAINTAINER_CFLAGS="$_MAINTAINER_CFLAGS -Wno-missing-field-initializers")
+        AX_CHECK_COMPILE_FLAG(-Wno-date-time,                   _MAINTAINER_CFLAGS="$_MAINTAINER_CFLAGS -Wno-date-time")
         AX_CHECK_COMPILE_FLAG(-Wno-sign-compare,                _MAINTAINER_CFLAGS="$_MAINTAINER_CFLAGS -Wno-sign-compare")
         AX_CHECK_COMPILE_FLAG(-Wno-unused-const-variable,       _MAINTAINER_CFLAGS="$_MAINTAINER_CFLAGS -Wno-unused-const-variable")
         AX_CHECK_COMPILE_FLAG(-Wno-unused-parameter,            _MAINTAINER_CFLAGS="$_MAINTAINER_CFLAGS -Wno-unused-parameter")