2009-03-07 16:47 UTC+0300 Phil Krylov <phil a t newstar.rinet.ru>
* Makefile
* source/Makefile
* set directory dependencies for parallel compilation
* config/bin.cf
* config/dir.cf
* config/lib.cf
+ added explicit support for make recursive calls.
* rewritten DIR_RULE to use only GNU make commands instead of OS scripts.
Now config/<arch>/dir.cf files are not longer used except with GNU Make
3.79.1.
+ added support for dependencies between build directories for
parallel execution. If compilation of dirX needs results of
dirY and dirZ compilation then it hsould be declared as:
dirX{dirY,dirZ}
% process directories defined in DIRS simultaneously when -j<N>
GNU make switch is used - it gives additional speed improvement
on multi CPU machines
* config/dos/dir.cf
* config/w32/dir.cf
* changed simple assignments to recursive ones
* source/common/Makefile
* source/vm/Makefile
* moved biggest files to begin of file list for better parallel
compilation utilization.
The parallel compilation can be enabled by using -j<n> GNU make
switch on multiprocess platforms, f.e.:
./gnu_make.sh -j3
It should give some speed improvement even on single CPU machines.
These are results of clean Harbour compilation on my 3 phantom CPU
computer:
1. leaner compilation without -j<n> 6m29.895s
2. parallel compilation with -j5 but without
parallel directory processing 3m20.163s
3. parallel compilation with -j5 and with new
parallel directory processing 2m6.168s
(by Przemyslaw Czerpak, borrowed from Harbour)
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