On Mar 1, 10:45 am, [EMAIL PROTECTED] wrote: > Hi. Say I've got a library of code that I actively maintain in ~/ > libdir and some code that depends on the library in ~/codedir. If I > make a change in ~/libdir but do not run make there, I'd like to be > able to check that when building things in ~/codedir, and make the > library in ~/libdir and the targets in ~/codedir that depend on the > library.
I think I've found a simple enough solution to this problem. First I run a shell command that makes the library, and then I create a target with no commands for the library. (This turns off any implicit rules for the library, and is described in section 5.9 "Empty Commands" in the GNU make manual. I don't want the codedir makefile to worry about anything involved in making the library.) Targets in codedir's makefile list the library target in their prerequisites. codedir/ makefile looks something like: dummy = $(shell make -C ../libdir) mycode: mylib.a mycode.o mylib.a: ; The assignment to dummy updates mylib.a if it is needed. And this will in turn cause mycode to be updated. If the assignment to dummy doesn't update anything, then mycode will depend solely on the remaining prerequisites. Thanks for listening! - Chris _______________________________________________ help-gnu-utils mailing list help-gnu-utils@gnu.org http://lists.gnu.org/mailman/listinfo/help-gnu-utils
