AC_ARG_ENABLE([assert],
[AS_HELP_STRING([--enable-assert],
[Enable assert, this will be overridden by --enable-debug (yes|no) @<:@default=no@:>@])],
AC_ARG_ENABLE([assert],
[AS_HELP_STRING([--enable-assert],
[Enable assert, this will be overridden by --enable-debug (yes|no) @<:@default=no@:>@])],