%% "Balzli, Robert" <[EMAIL PROTECTED]> writes:
br> I'm trying to create a pattern rule that has the object directory
br> different than that of the source directory. The document for gnu
br> make it tells me that the directory from the target is always
br> attached to the stem in order to generate the matching dependency.
br> This won't work for me. Here is my example
br> SRC_PATH = src/a src/b
br> SRC = src/a/one.c src/b/two.c
br> OBJ_PATH = obj/nt/debug/
br> OBJ = obj/nt/debug/one.o obj/nt/debug/two.o
br> How do I write a pattern rule for such a case?
br> Would something like this work?
br> $(OBJ_PATH)/%.o : $(SRC_PATH)/%.c
br> Or would this work?
br> $(OBJ)/%.o : $(SRC)/%.c
Neither of these will work. Try expanding the variables and you'll see
why; the first one expands to this:
obj/nt/debug//%.o : src/a src/b/%.c
which is obviously not going to work, since "src/a src/b/%.c" is not
going to do what you want.
Ditto for the second one, and even worse; that expands to this:
obj/nt/debug/one.o obj/nt/debug/two.o/%.o : src/a/one.c src/b/two.c/%.c
which is completely nonsensical.
What you need to do is write one pattern rule for each individual
combination of object and source directories:
obj/nt/debug/%.o : src/a/%.c
...
obj/nt/debug/%.o : src/b/%.c
...
etc.
--
-------------------------------------------------------------------------------
Paul D. Smith <[EMAIL PROTECTED]> Find some GNU make tips at:
http://www.gnu.org http://www.paulandlesley.org/gmake/
"Please remain calm...I may be mad, but I am a professional." --Mad Scientist
