[AC_MSG_ERROR([libcif++ not found - cannot continue])])
AC_DEFINE_UNQUOTED([USE_RSRC], [$USE_RSRC], [Use mrc to store resources])
AC_CHECK_HEADER([filesystem], [], [AC_MSG_ERROR([The file <filesystem> is missing, perhaps you should install a more recent libstdc++ implementation.])])
...
...
@@ -71,11 +67,25 @@ AC_TRY_LINK(
AX_BOOST_BASE([1.65.1], [], [AC_MSG_ERROR([Could not find a recent version of boost])])