On Tue Oct 7 13:09:11 2014, maxim.yegorush...@gmail.com (Maxim Yegorushkin) wrote: > My dependencies are: > > build/Linux-x86_64-64.g++-release/lib/libdata_access.so : > build/Linux-x86_64-64.g++-release/obj-mt-pic/data_access/data_access.o > build/Linux-x86_64-64.g++-release/obj-mt-pic/data_access/data_access.o : > src/c++/data_access/data_access.cc > src/c++/data_access/data_access.cc : > src/c++/data_access/data_access.reflect.h > src/c++/data_access/data_access.reflect.h : > src/c++/data_access/data_access.h src/c++/reflect/generate.py
This is not a complete list. > What happens is that make correctly identifies that data_access.cc depends > on data_access.reflect.h, finds an implicit rule that generates > data_access.reflect.h, rebuilds the dependencies of data_access.reflect.h > but neglects to build data_access.reflect.h itself. Really? That's not what I'm seeing below. > Why does it not build data_access.reflect.h please? > > I am using GNU make-4.0. Below is the relevant bit from `make -r -d` output: > > Considering target file > 'build/Linux-x86_64-64.g++-release/lib/libdata_access.so'. > File 'build/Linux-x86_64-64.g++-release/lib/libdata_access.so' does not > exist. [...] > 'src/c++/data_access/data_access.reflect.h'. > Pruning file 'src/c++/data_access/data_access.h'. > Considering target file 'src/c++/reflect/generate.py'. > Looking for an implicit rule for 'src/c++/reflect/generate.py'. > Trying pattern rule with stem 'generate'. > Trying rule prerequisite 'src/python/olivetree_c.py'. [...] > Finished prerequisites of target file 'src/python/olivetree_c.py'. > Must remake target 'src/python/olivetree_c.py'. > cd src/python && ln -fs olivetree_c.py.release olivetree_c.py > Putting child 0x1e74d10 (src/python/olivetree_c.py) PID 4317 on the chain. > Live child 0x1e74d10 (src/python/olivetree_c.py) PID 4317 > Reaping winning child 0x1e74d10 PID 4317 > Removing child 0x1e74d10 PID 4317 from chain. > Successfully remade target file 'src/python/olivetree_c.py'. > Considering target file 'src/python/olivetree_c.py'. > File 'src/python/olivetree_c.py' was considered already. > Finished prerequisites of target file 'src/c++/reflect/generate.py'. > Prerequisite 'src/python/olivetree_c.py' of target > 'src/c++/reflect/generate.py' does not exist. This is weird. You just 'created' it, except that you really didn't: all you did was create a symbolic link to what is supposedly a pre-existing file. There are two risks wih this: 1) Does that file actually exist? Make claims it doesn't. 2) Even if it exists, you didn't update its modification time; make will notice it's older than the target, so why should it remake the target? > Must remake target 'src/c++/reflect/generate.py'. > Successfully remade target file 'src/c++/reflect/generate.py'. > Pruning file 'etc/rules.mk'. > Finished prerequisites of target file > 'src/c++/data_access/data_access.cc'. > Prerequisite 'src/c++/data_access/data_access.reflect.h' of target > 'src/c++/data_access/data_access.cc' does not exist. > No need to remake target 'src/c++/data_access/data_access.cc'. > Finished prerequisites of target file > 'build/Linux-x86_64-64.g++-release/obj-mt-pic/data_access/data_access.o' > > Maxim -- Reinier Post TU Eindhoven _______________________________________________ Bug-make mailing list Bug-make@gnu.org https://lists.gnu.org/mailman/listinfo/bug-make
