Re: Sequencing targets during a build.

[Paul D. Smith]

%% "Stranc, Christopher [BRAM:LSBA:EXCH]"<address@hidden> writes:

  sc> I would dearly love a way to "hint" to make to run 2-1-slow as
  sc> soon as it's dependencies are met, with priority over other
  sc> targets.

There is no way to do this.  Make will run targets in the order they
appear on the prerequisite line, as fast as possible.  So, if 2-1-slow
is the first prerequisite to be considered, then it will be run first.
If it isn't, it won't be.

  sc> 1.Sequencing the targets in the COMPONENTS list 2-1-slow first so
  sc> it might be at the beginning of the list for "what to run next".
  sc> Unfortunately the way the build is structured I cannot actually
  sc> change when the target is first identified.

This is your only option.

Maybe you could run the build like this:

    make -j5 2-1-slow all

either directly, or even through a recursive invocation; something like
adding this to the top of your makefile:

    .PHONY: recurse
    recurse:
            $(MAKE) 2-1-slow all

That will force make to build the 2-1-slow target first.  You don't need
to change "all" to avoid 2-1-slow; make is smart enough to handle the
same prerequisite being referenced by multiple targets and will only
build it once.

-- 
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