netpbm apparently doesn't like -mcpu=ultrasparc, it'll fail on ppmpat.c with an
ICE. As such, replace-flags is used to swap the "ultrasparc" with "v8", which
Created attachment 10264 [details]
replace-flags added, swaps -mcpu=ultrasparc -> v8
We agreed to use the following replace-flags now:
# Sparc support ...
replace-flags "-mcpu=ultrasparc" "-mcpu=v8 -mtune=ultrasparc"
replace-flags "-mcpu=v9" "-mcpu=v8 -mtune=v9"
I'll add this in, looks good to me.