On Wed, 2012-03-07 at 05:15 -0800, Mark Galeck (CW) wrote: > "Immediate" means, the value is assigned as soon as make sees the > assignment. That is := > > "Deferred" means, the assignment is noted but the value is not > assigned until it is necessary to do so later. That is =
These statements are slightly misleading. A value is _assigned_ to a variable when make reads the assignment line, regardless of whether you use = or :=. The difference (as described in the manual) is when the value is _expanded_. In a deferred assignment (=) the value is not expanded until sometime later, when the variable is used in an immediate context. In an immediate assignment (:=) the value is expanded before it is assigned (and then not expanded again when the variable is used). See if the manual's description is helpful. Cheers! -- ------------------------------------------------------------------------------- Paul D. Smith <psm...@gnu.org> Find some GNU make tips at: http://www.gnu.org http://make.mad-scientist.net "Please remain calm...I may be mad, but I am a professional." --Mad Scientist _______________________________________________ Help-make mailing list Help-make@gnu.org https://lists.gnu.org/mailman/listinfo/help-make
