Re: all-before and all-after options

[Noel Yap]

all-before and all-after are targets just as xyz is.

Also, assuming the order of execution of dependencies won't work under parallel 
make.

HTH,
Noel

"Glenn A. Carlson, P.E." wrote:
> 
> I've seen several instances of the following make statement:
> 
> all: all-before xyz all-after
> 
> where xyz is some filename usually of an executable or a library to be
> created.
> 
> The "Complex Make File Example" in the gnu make documentation shows all:
> followed by a list of other targets.  This makes sense to me, but I can't
> find anything in the gnu make documentation which describes all-before and
> all-after, and the makefiles I've seen elsewhere which include all-before
> and all-after don't include them as targets.  A Google search on 'makefile
> "all-before" "all-after" ' will return several examples of what I'm talking
> about.
> 
> (A similar question arises for the 'clean: clean-custom' make statement.
> What does 'clean-custom' do?)
> 
> Can anyone help me understand what this statement and what all-before and
> all-after are doing?
> 
> Thanks for the information.
> 
> Glenn Carlson
> 
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