[klibc] dash klibc DEBUG compile question

[maximilian attems]

now with the proper flags passed and the jobs.c fix dash
allmost compiles in DEBUG mode, the last two failures happen
in show.c, which assumes some buffering functions that klibc
doesn't provide:
usr/dash/show.o: In function `opentrace':
show.c:(.text+0x36): undefined reference to `freopen'
show.c:(.text+0x86): undefined reference to `setlinebuf'

afais this code dates from the initial git import.
any preferences on how to fix those Herbert?


-- 
maks