2011-01-03 Xan Lopez <xlopez@igalia.com>
Reviewed by Martin Robinson.
[GTK] Disable superfluous GNU make built-in implicit rules
https://bugs.webkit.org/show_bug.cgi?id=51826
GNU make ships some superflous built-in rules that we never use
and that end up adding up to a very significant portion of our
total Makefile processing time. Disable them completely by
defining the rule without any recipe, as suggested by the GNU make
manual (10.5.6, Cancelling Implicit Rules).
In my system the null-build goes from:
make 43.51s user 12.77s system 99% cpu 56.628 total
to:
make 31.45s user 11.59s system 99% cpu 43.227 total
* GNUmakefile.am: disable implicit built-in rules.
git-svn-id: http://svn.webkit.org/repository/webkit/trunk@74903 268f45cc-cd09-0410-ab3c-d52691b4dbfc
2 files changed
