Peter Hansen <[EMAIL PROTECTED]> writes: > ted wrote: >> How does the speed of the Scons build tool compare with Ant? Right >> now with out Ant builds take around an hour. Hoping to speed that up. > > Don't tools like Scons, Ant, and for that matter "make" just > execute other programs? So that 99% of the time is consumed > external to the Scons, Ant, or make process itself? Why > do you think the speed of the build tool is of any significance > compared to the time for things like compilers and linkers > to execute?
Actually, these tools do a number of things oter than run other programs. For instance, they parse input files to construct a build tree, walk the build tree figuring out what needs to be rebuilt, and only *then* do they get around to executing those other programs. Assuming that the work prior to running those other programs is "neglible" can lead to some truly atrocious build-time behavior. In fact, one major advantage that ant/scons/jam/etc. have over Make is that they avoid the defacto standard "recursive make" build system. See <URL: http://www.pcug.org.au/~millerp/rmch/recu-make-cons-harm.html > for details on that. <mike -- Mike Meyer <[EMAIL PROTECTED]> http://www.mired.org/home/mwm/ Independent WWW/Perforce/FreeBSD/Unix consultant, email for more information. -- http://mail.python.org/mailman/listinfo/python-list
