%% Henrik Grimm <[EMAIL PROTECTED]> writes: hg> I have the following rule in my makefile: hg> libraries: $(LIBRARIES) hg> $(foreach dir,$(SUBDIRS),$(MAKE) -C $(dir) libraries;)
hg> The idea is that when i specify "libraries" as target all libraries in hg> the local directory are built, and make is called recursively in all hg> subdirectories to build all libraries. hg> Now, my problem is that I want this to be done in parallel, i.e. it hg> should be able to build multiple libraries in different directories hg> concurrenlty. I have tried to change the ";" character into a "&", but hg> it doesn't seem to work correctly (and doesn't respect the "-j" option). Then you can't put it into a single shell invocation: make cannot split up your rule into multiple parts and run them in parallel. It can only build different targets in parallel. This is a bad way to handle make recursion, and this is one (but not the only) reason. If you look in the GNU make manual there's an example of how to do this more correctly in the section on Phony Targets. -- ------------------------------------------------------------------------------- Paul D. Smith <[EMAIL PROTECTED]> Find some GNU make tips at: http://www.gnu.org http://make.paulandlesley.org "Please remain calm...I may be mad, but I am a professional." --Mad Scientist _______________________________________________ Help-make mailing list [email protected] http://lists.gnu.org/mailman/listinfo/help-make
