> Yeah and that's largely due to the current layout being recursive,

hmmm.. I don't think that's the reason. currently, there aren't that many 
Makefiles: /src, /portaudio, /portmidi, /asio, /extra and for each external. 
aside from that, my build system is also recursive (calling make on 
pd-lib-builder makefiles for the externals). 
what's really slow is compiling the individual source files. while a typical .c 
file in /src takes ~1 second on my build system, it takes significantly longer 
with libtool. this is easily noticeable when watching the console output. I 
think it's rather an overhead introduced by libtool but I might be wrong. did 
you notice that on other platforms? 


Gesendet: Sonntag, 03. Dezember 2017 um 12:55 Uhr
Von: "Dan Wilcox" <danomat...@gmail.com>
An: "Christof Ressi" <christof.re...@gmx.at>
Cc: pd-list <pd-l...@iem.at>, "Miller Puckette" <m...@ucsd.edu>
Betreff: Re: [PD] autotools

 

On Dec 3, 2017, at 11:39 AM, Christof Ressi 
<christof.re...@gmx.at[mailto:christof.re...@gmx.at]> wrote: 
but most other platform specific knowledge will be the same for any build 
system I guess. after all, Pd changes in a slow and healthy pace, so there 
aren't many modifications to be done to the build system once it is set up.
 
That is definitely true. Automake puts together the makefile rules for you but 
of course it still works in the same way in the end.
 
I've also found this guide to be pretty helpful in the getting into the basics: 
https://autotools.io/index.html[https://autotools.io/index.html]
 
the one thing I noticed is build speed: a complete rebuild (including 
externals) on my personal MinGW build system takes ~40 seconds but with 
autotools it takes a whopping 4 minutes and 30 seconds!
 
Yeah and that's largely due to the current layout being recursive, ie. multiple 
makefiles in multiple directories. This is one of the reasons there have been 
some projects that rework things into a single main makefile as it lowers the 
amount of directory walking and intermediate steps ie. non-recursive make: 
https://autotools.io/automake/nonrecursive.html[https://autotools.io/automake/nonrecursive.html]
 
To some degree, configure will always be slow for all sorts of reasons, but 
there are definitely techniques to slow down the make process. Another 
advantage to non-recursive make is that doing a parallel build would work 
without timing uncertainties between different makefiles. 

--------
Dan Wilcox
@danomatika[http://twitter.com/danomatika]
danomatika.com[http://danomatika.com]
robotcowboy.com[http://robotcowboy.com]
 

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