m4_define([ATX_WCHAR_T_TEST], [
  AS_IF([test "x$BUILD_WITH_WCHAR_T_SUPPORT" = "xyes"], [$1])
])


m4_define([ATX_COMPILE_CXX], [
  AT_CHECK([$CXX $CPPFLAGS $CXXFLAGS -c "$1"], [0], [stdout], [stderr])
  ATX_WCHAR_T_TEST([
    AT_CHECK([$CXX $CPPFLAGS $CXXFLAGS -DUNICODE=1 -D_UNICODE=1 -c "$1"], [0], [stdout],
      [stderr])])
])


m4_define([ATX_COMPILE_CXX_HEADER], [
  AT_CHECK([AS_ECHO([["#include \"$1\""]])>test.cxx])
  AT_CAPTURE_FILE([test.cxx])
  ATX_COMPILE_CXX([test.cxx])
])