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It's rather hard to tell what's wrong without knowing what *should* be happening. > last worked in 8.4. In 11-CURRENT Var_Value appears to return NULL at > /usr/src/contrib/bmake/compat.c:621 > > Var_Set(IMPSRC, Var_Value(TARGET, gn, &p1), pgn, 0); > > which passes the NULL to Var_Set as the second argument (val) where, > eventually, /usr/src/contrib/bmake/var.c:973 Which means TARGET hasn't been set, and there's probably something rather interesting about your makefile ;-) This should of course never happen. Even if Var_Set checked the failure and returned harmlessly you have a serious problem. > Any and all pointers appreciated, What is content of gn at > #2 0x0000000000402040 in Compat_Make (gnp=0x800a1c340, > #pgnp=0x800a1df00) > at /usr/src/contrib/bmake/compat.c:621