Hello,
I have got two Makefiles:
Makefile2:
------------
./target1.out: ./test/Test.cc.o
@echo linking
./%.cc.d: ../../src/target1/%.cc
@echo making dep
./%.cc.o: ../../src/target1/%.cc
@echo compiling
-include ./test/Test.cc.d
------------
and
Makefile2_working:
------------
dst/./target1.out: dst/test/Test.cc.o
@echo linking
dst/%.cc.d: ../../src/target1/%.cc
@echo making dep
dst/%.cc.o: ../../src/target1/%.cc
@echo compiling
-include dst/test/Test.cc.d
------------
Those two makefiles reside in the same folder and I tell make to use
each with -f.
Now the important part is that Test.cc is located in
../../src/target1/test (note the "test" folder at the end), the
dependency .cc.d however is created (or should be created) by a rule
that only knows the root directory of the source tree
(../../src/target1) and a relative path from that directory to the
actual file.
What I basically want to do is switch the output directory. And know
comes the strange part that I do not understand:
The first makefile Makefile2 does not work (make: *** No rule to make
target `test/Test.cc.o', needed by `target1.out'. Stop.), the second
however does its job (it prints making dep, compiling, linking). What is
the problem with the first one?
I don't get it. All I did change is the destination folder, and if that
is the current directory then the rule does not match, if it is another
directory ("dst" in this case) it works. I've already had a look at the
output of -d, and there it _seems_ to me as if it does try/find a wrong
Stem (?).
I've attached the whole source tree ready for "building" and also the
two logs (inside; all created with --no-builtin-rules
--no-builtin-variables -d [just to reduce pollution of log]).
I am using GNU Make 3.81 (x86_64-pc-linux-gnu).
Any help would be appreciated! Thank you very much in advance.
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