Check for ldc.conf next to the ldc binary before home and etc. The new search order is * current working directory * next to executable * user home directory * prefix/etc * prefix/etc/ldc * /etc * /etc/ldc

// ifloat

module typeinfo1.ti_ifloat;

private import typeinfo1.ti_float;

class TypeInfo_o : TypeInfo_f
{
    char[] toString() { return "ifloat"; }
}