Re: How to write rule that gets all items referenced in a given makefile

[Adrian Muresan]

Yes, I am using it and yes the info it gives is very useful, parseable and 
excellent in general. 

The problem is that this information is only outputted by `make` AFTER the 
makefile is finished executing whereas I need to access this information - via 
some function that apparently doesn't exist - BEFORE the makefile rules start 
executing so that I can create rules that act on his information. 

As it stands, I'd have to run my build twice: once to get the info and another 
time to use the info. 

Given my esoteric task, it's not unreasonable for me to do this. 

1. Make all
2. Parse output, generate whatever rules I need -> Generated_Rules.mk
3. Make all MAKEFILES=Generated_Rules.mk

> On Jul 5, 2016, at 11:44 PM, Tim Murphy <address@hidden> wrote:
> 
> You might want to use makes -p option (--print-data-base) to print out the 
> targets and prereqs that it has read.   The format of this output is 
> simplified - all variables etc are expanded - so in python it's very easy to 
> parse.
> 
> Regards,
> 
> Tim