Muli Ben-Yehuda <[EMAIL PROTECTED]> writes: > Let's say that I have a complex project, using many Makefiles. In some > of them, I'd like to refer to other directories of the project. So > far, I've been using various combinations on ../, ../../, etc, but > that's awfully brittle when you start moving directories around (not > to mention potentially dangerous). Is there a way, which does NOT > involve setting an environment variable, to refer to the top level > project directory? Specifically, I have a Rules.make in that > directory, which is included from the other Makefiles. If I could make > the Rules.make contain the top level directory in a variable, it would > solve most of my problems. > > Now that I think of it, another way would be to change the build > structure from recursive builds to a centralized build - all > directories are built from the top level directory. Let's say that I > do want to use recrusive build, though. What trick am I missing?
Provide a reassonable (relative) default in every Makefile UNTESTED: In top-level Makefile ifndef TOPDIR TOPDIR := $(shell pwd) endif export TOPDIR In all the other makefiles ifndef TOPDIR TOPDIR := <default path to TOPDIR> export TOPDIR endif include $(TOPDIR)/Rules.mk On the command line you'll be able to change it at will $ make TOPDIR=<path> HIH, let me know if you run into problems. -- Oleg Goldshmidt | [EMAIL PROTECTED] ================================================================= To unsubscribe, send mail to [EMAIL PROTECTED] with the word "unsubscribe" in the message body, e.g., run the command echo unsubscribe | mail [EMAIL PROTECTED]
