Re: include ... why not search in same directory ?

[Paul D. Smith]

%% "Markus Mauhart" <address@hidden> writes:

  >> You can use the $(MAKEFILES) variable, if you have GNU make 3.80.

  mm> you mean ...

  mm> include $(dir $word $(words $(MAKEFILE_LIST)),$(MAKEFILE_LIST)))/2.mk.

Yes (sans typo :)).

  mm> this can only be used up to the 1st include; then one needs file-local
  mm> variables, that is with a kind of unique name ... IMHO a very expensive
  mm> and unreadable instrumentarium.

Add this to the top of your makefile (maybe in a general included
makefile):

  __FILE__ := $(word $(words $(MAKEFILE_LIST)),$(MAKEFILE_LIST))

Then just use __FILE__ from then on.

  >> , then no.  This behavior has been around forever and make is too basic
  >> a tool to introduce these kinds of major incompatibilities with previous
  >> versions.

  mm> Understandable; allthough I'm not convinced that this fix of a
  mm> mis-feature would have to introduce more major incompatibilities
  mm> than many other changes that happened through make's history.

Like what?  There is virtually _never_ a change which is not
backward-compatible.  Possibly some changes might not be backward
compatible if you're using very bizarre types of syntax, like filenames
consisting of nothing but the character "|" or similar.

Were you thinking of something in particular?


A change like this is _VERY_ visible.  Any time someone uses -f
foo/bar.mk and bar.mk has an include that is expected to be in the
current working directory, that would break.

In one of my build systems right now, for example, each directory has a
special makefile "local.mk" that describes that directory.  When make is
invoked it is run like this:

  make -f $(TOPDIR)/mk/master.mk

and inside the master.mk file it includes "local.mk".  This works
because it searches the current working directory even though the
master.mk file is not local.

-- 
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