Update to the latest version of the AX_CXX_COMPILE_STDCXX_11 macro from
the Autoconf Archive, Note that the macro now depends on
AX_CXX_COMPILE_STDCXX so this macro has to be included too.
Older distributions don't include Autoconf Archive at all and newer
distributions don't always include it. Therefore we have to have a
local copy of the AX_CXX_COMPILE_STDCXX_11 macro with GParted.
Bug 756035 - GParted does not compile with newer gtkmm libraries in
Fedora 23