Re: [GNU make 3.80] Why does "make" "order-only-prequisities" work oddly with stems ?

[James]

for.fun@laposte.net wrote:
> Hi everybody,
>
>
> First of all, I understood this about "order-only-prequisities" :
>
> If a rule only depends on an order only requisities, it means that the
> target will only be rebuilt upon the prequisity existence condition
> (instead of the modified time condition)
>
> I joined the short Makefile "order-only.mk" and a script which runs
> this Makefile. This should reproduce the strange behaviour I noticed.
>
> After cutting/pasting the followings lines respectively into
> "order-only.mk" and "test.sh" files, you should get the following
> result after running "test.sh" (be carefull that "oo-prereq" time is
> really newer than the target in case your system time is not accurate)
> :
>
>  *** First build ***
>  "Making test.out ..."
>  "Making test-stem.out ..."
>  *** Build after order only prerequisity is modified ***
>  "Making test-stem.out ..."
>
>
> As expected, the target "test.out" is not rebuilt but "test-stem.out"
> is rebuilt in spite of the fact that "oo-prereq" is order only.
> If you run "make" in verbose mode ("-d" option), you will notice that
> in the "stem" case, the order only prereq is recognized as a regular
> target so make rebuild the target.
>
> => Please tell me if I misunderstood anything ?
> => Does my "order-only.mk" contains some error ?
> => Is it a GNU make 3.80 bug ?
>
>
> Thanks in advance for your help.
>

I see the same behavior. However, make-3.81beta3 behaves correctly.

$ touch oo-prereq
$ ~/make-3.81beta3/make -f order-only.mk
make: Nothing to be done for `all'.

make-3.80 has many bugs.

James