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RE: Non existing target not marked as new
From: |
Raz Manor |
Subject: |
RE: Non existing target not marked as new |
Date: |
Sun, 12 Feb 2017 12:11:45 +0000 |
OK, I got it. I used .SECONDARY instead of .PRECIOUS to preserve the .d and .o
files. I did it because I still wanted files to be deleted if they were stopped
mid-build. Is there a way to get both of the behaviors?
Also, while debugging I made a mistake not to -include the .d files, but they
were still a precious dependency of the .o files, and there was the %.d: ; rule
to 'make' them. That made the .o to still not rebuild because the .d file was
not built. Why was that?
Anyway, these are all nice-to-have problems. My main problem was solved. Thanks
a lot for all your help.
Peace and love,
Raz
-----Original Message-----
From: Paul Smith [mailto:address@hidden
Sent: Thursday, February 9, 2017 5:54 PM
To: Raz Manor <address@hidden>; address@hidden
Subject: Re: Non existing target not marked as new
On Thu, 2017-02-09 at 08:16 +0000, Raz Manor wrote:
> Unfortunately I can't send you my makefile as it gives up company IP.
I wasn't suggesting you send your makefile: we don't have the time or energy to
understand and debug an entire make environment :). I was suggesting you
create a small sample that reproduces the problem you're seeing and send that.
I tried to create a repro case based on your description but it worked fine for
me with both GNU make 4.1 and 4.2.1:
$ mkdir -p build/common/tests ../common/tests
$ echo 'int main() { return 0; }' > ../common/tests/timer_test.cpp
$ cat Makefile
all: build/common/tests/timer_test
build/common/tests/timer_test: build/common/tests/timer_test.o
# -----
DEPFLAGS = -MT $@ -MMD -MP -MF $(@:.o=.Td)
COMPILE.cc = $(CXX) $(DEPFLAGS) $(CXXFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c
POSTCOMPILE = mv -f $(@:.o=.Td) $(@:.o=.d)
build/% : build/%.o
$(LINK.cc) -o $@ $^
build/common/%.o : ../common/%.cpp build/common/%.d
$(COMPILE.cc) $(OUTPUT_OPTION) $<
$(POSTCOMPILE)
build/common/%.d: ;
.PRECIOUS: build/common/%.d
-include build/common/tests/timer_test.d
$ make -r
g++ -MT build/common/tests/timer_test.o -MMD -MP -MF
g++ build/common/tests/timer_test.Td \
-c -o build/common/tests/timer_test.o ../common/tests/timer_test.cpp mv -f
build/common/tests/timer_test.Td build/common/tests/timer_test.d
g++ -o build/common/tests/timer_test build/common/tests/timer_test.o
$ make -r
make: Nothing to be done for 'all'.
$ rm -f build/common/tests/timer_test.d
$ make -r
g++ -MT build/common/tests/timer_test.o -MMD -MP -MF
g++ build/common/tests/timer_test.Td \
-c -o build/common/tests/timer_test.o ../common/tests/timer_test.cpp mv -f
build/common/tests/timer_test.Td build/common/tests/timer_test.d
g++ -o build/common/tests/timer_test build/common/tests/timer_test.o
Re: Non existing target not marked as new, Philip Guenther, 2017/02/09