4 commits

Author	SHA1	Message	Date
Paul Smith	0afbbf8595	- Rework secondary expansion so we only defer it if there's a possibility ... it might be needed: for most situations we parse prereqs immediately as we used to. Reduces memory usage. - Fixes Savannah bug #18622.	2009-09-24 02:41:44 +00:00
Paul Smith	11095a90f1	Make second expansion optional (partial implementation). ... I decided this feature was too impacting to make the permanent default behavior. This set of changes makes the default behavior of make the old behavior (no second expansion). If you want second expansion, you must define the .SECONDEXPANSION: special target before the first target that needs it. This set of changes ONLY fixes explicit and static pattern rules to work like this. Implicit rules still have second expansion enabled all the time: I'll work on that next. Note that there is still a backward-incompatibility: now to get the old SysV behavior using $$@ etc. in the prerequisites list you need to set .SECONDEXPANSION: as well.	2005-10-24 13:01:39 +00:00
Boris Kolpackov	cb2f200269	Fixed stem termination and stem triple-expansion bugs.	2005-03-03 17:39:48 +00:00
Boris Kolpackov	659fc6b55e	Implementation of the second expansion in explicit ... rules, static pattern rules and implicit rules.	2005-02-27 21:40:23 +00:00