Re: tools/build/tools/boostbook.jam (rev 1.5) broken?

From: David Abrahams (gclbb-jamboost_at_[hidden])
Date: 2003-07-24 07:54:50

Vladimir Prus <ghost_at_[hidden]> writes:

> Uhm... I though something like that, but that did not explain strange 
> behaviour on Boost.Book. Okay, I've wrote a test case:
>
> DEPENDS all : a ;
> DEPENDS a : b ;
> DEPENDS b : c ;
>
> TEMPORARY b ;
>
> actions copy
> {
> cp $(>) $(<)
> }
>
> copy a : b ;
> copy b : c ;
>
> and guess what. If "c" exists, then every "bjam" invocation recreates "a".
> I'm sure this is not right, or is there anything I've missed?

Maybe. If you look how it's used in Jambase, you get

libfoo.a -> libfoo.aX.o -> X.o -> X.c
-> libfoo.aY.o -> Y.o -> Y.c
-> libfoo.aZ.o -> Z.o -> Z.c
^^^^^^^^^^^
These don't actually exist, but are not marked NOTFILE (!). The .o
files are TEMPORARY. Hell if I know !?

You might try asking on the jamming list.

> This happens both with Perforce Jam and with Bjam (guess I've
> "merged" that bug from Perforce).

One of these days we're going to have to throw out Perforce Jam
altogether ;-S

-- 
Dave Abrahams
Boost Consulting
www.boost-consulting.com