strange results with include (probable user error)

[Mike Castle]

GNU Make version 3.79.1, by Richard Stallman and Roland McGrath.


I expected an include directive to behave exactly as if the contents of the
included file was inline in the Makefile.  But I'm seeing a case where it's
not.

I'm wondering if I'm doing something wrong, having the wrong expectations,
or it's a bug.

As the following shows, when using an include, I get an extra "Nothing to
be done for `all'."  At least, I wasn't expecting it.

It's almost like, after processing the include, and performing the action,
make reinvokes itself.

Oh.  Just did a test, and if I put a dummy command in for all:

all: second-all
        :

Then it works as expected.

Comments?

Thanks,
mrc

address@hidden:16pm]/usr/src/.sbuild(788) cat Makefile
all: second-all

include foo.mak

second-all: $(ALL)
address@hidden:17pm]/usr/src/.sbuild(789) cat foo.mak
ALL+=foo.mak

foo.mak: foo.src
        touch foo.mak

address@hidden:18pm]/usr/src/.sbuild(790) touch foo.src
address@hidden:18pm]/usr/src/.sbuild(791) make
touch foo.mak
make: Nothing to be done for `all'.

address@hidden:19pm]/usr/src/.sbuild(795) cat Makefile.2
all: second-all

ALL+=foo.mak

foo.mak: foo.src
        touch foo.mak

second-all: $(ALL)
address@hidden:19pm]/usr/src/.sbuild(796) !tou
touch foo.src
address@hidden:19pm]/usr/src/.sbuild(797) make -f Makefile.2
touch foo.mak


-- 
       Mike Castle       Life is like a clock:  You can work constantly
  address@hidden  and be right all the time, or not work at all
www.netcom.com/~dalgoda/ and be right at least twice a day.  -- mrc
    We are all of us living in the shadow of Manhattan.  -- Watchmen