p Check the marshaling facilities (trying to read the result of linux/x86)
-$ gras/datadesc/datadesc_usage --read ${srcdir:=.}/gras/datadesc/datadesc.little32_4 "--log=root.fmt:%m%n"
+$ gras/datadesc/datadesc_usage --read ${srcdir:=.}/gras/datadesc/datadesc.little32_4 --log=test.thres:verbose --log=structs.thres:info "--log=root.fmt:%m%n"
> Read from file datadesc.little32_4
+> This file was generated on little32_4 (2)
> ---- Test on integer ----
> ---- Test on float ----
> ---- Test on double ----