> Can't you just version it? Rename existing PT_STEP to PT_OSTEP or > something, define PT_STEP with the new value (instead of introducing > new PT_* name)?
That works for ABI compatability but not API compatability. /~\ The ASCII Mouse \ / Ribbon Campaign X Against HTML mo...@rodents-montreal.org / \ Email! 7D C8 61 52 5D E7 2D 39 4E F1 31 3E E8 B3 27 4B