+ dnl Shut off warning -Wdeprecated-copy, which triggers too much
+ dnl note that g++ always accepts -Wno-xxx, even when -Wxxx is an error.
+ AC_LANG_PUSH(C++)
+ AX_CHECK_COMPILE_FLAG([-Wno-deprecated-copy],
+ [AM_CXXFLAGS="$AM_CXXFLAGS -Wno-deprecated-copy"], [], [-Werror])
+ AC_LANG_POP(C++)