On Tue, 28 Feb 2023, Dmitry Goncharov wrote:
> On Tue, Feb 28, 2023 at 8:41 PM Satish Balay via Bug reports and
> discussion for GNU make <bug-make@gnu.org> wrote:
> > $ cat makefile
> > all:
> > @MAKEFLAGS="-j1 ${MAKEFLAGS}" ${MAKE} -f makefile hello
> > hello:
> > @echo Hello
>
> When you pass --print-directory MAKEFLAGS has the value "w".
> When this makefile prepends -j1 the value of MAKEFLAGS becomes "-j1 w".
> Among other changes short options are now in the first word on makeflags.
>
> Well defined MAKEFLAGS has the following format
> [shortoptions] [-option with arg]... [--long option]... [ -- cli definitions]
>
> -j carries an argument and is supposed to follow short options.
>
> If you change to
> MAKEFLAGS="${MAKEFLAGS} -j1" $(MAKE) -f makefile hello
> then it'll work.
For one, the long option '--print-directory' is automatically converted to this
short notation - contributing to this issue.
And the reason we use the order '-j8 ${MAKEFLAGS}' is so that we have the
following behavior':
- invoking 'make' defaults to using a default of '-j8'
- invoking 'make -j4' gives: '-j8 -j4' - i.e ability to override this (pre-set)
default [when needed].
Will have to see if we can reorder options in the recommended order - in our
intermediate makefile.
thanks,
Satish
>
> i remember, Paul fixed something like this in glibc makefile.
> However, since users can arrange flags in this random order, we'll
> have to think what to do about this.
> Thanks for your report.
>
> regards, Dmitry
>
