ENSC_PATHPROG(RMMOD, rmmod)
ENSC_PATHPROG(VCONFIG, vconfig,, [See http://www.candelatech.com/~greear/vlan.html; usually this tool is shipped in the 'vconfig' or 'vlan' package of your distribution])
ENSC_PATHPROG(WGET, wget)
-ENSC_PATHPROG(IONICE, ionice)
+ENSC_PATHPROG(IONICE, ionice,, [This is usually shipped in the 'util-linux(-ng)' or 'schedutils' package])
ENSC_PATHPROG(FILE, file, [file])
ENSC_PATHPROG(GZIP, gzip, [gzip])
ENSC_PATHPROG(BZIP2, bzip2, [bzip2])