Re: There is a bug in the make manual!!

[ali hagigat]

Luke,
I tested your code by Fedora 12, make version 3.81:

.SECONDEXPANSION:
/tmp/foo.o:
%.o: $$(addsuffix /%.c,foo bar) foo.h
        @echo '$+'

and the result is:
make: Nothing to be done for `/tmp/foo.o'.

it did not expand to what you said!

On Mon, Sep 6, 2010 at 8:53 PM, Luke Shumaker <address@hidden> wrote:
> On Mon, 2010-09-06 at 08:21 +0430, ali hagigat wrote:
>> Secondary Expansion of Implicit Rules
>> .SECONDEXPANSION:
>> /tmp/foo.o:
>> %.o: $$(addsuffix /%.c,foo bar) foo.h
>> The prerequisite list after the secondary expansion and directory
>> prefix reconstruction
>> will be ‘/tmp/foo/foo.c /tmp/var/bar/foo.c foo.h’.
>> ----------------------------------------------------------------------------------
>> I copied some lines of the 2010 make manual, page 19. It says
>> prerequisite list will be:
>> /tmp/var/bar/foo.c
>> Where is 'var'?
>> It seems incorrect. Also expansion seems wrong.
>
> Indeed, using `$+' to check what it expands to:
>    .SECONDEXPANSION:
>
>    /tmp/foo.o:
>
>    %.o: $$(addsuffix /%.c,foo bar) foo.h
>       address@hidden '$+'
> It does expand to '/tmp/foo/foo.c /tmp/bar/foo.c foo.h'
>
> You should check to make sure this bug hasn't already been filed:
> https://savannah.gnu.org/bugs/?group=make
> And if it hasn't, submit it:
> https://savannah.gnu.org/bugs/?func=additem&group=make
>
> ~ LukeShu
>
>