.DELETE_ON_ERROR & error propagation through multi-command

[Robert]

Hello, the following Makefile:



.DELETE_ON_ERROR: $(UPDATE_TARGET) $(EXE_TARGET)

...

$(UPDATE_TARGET): $(SRC)
        $(PYTHON) install/mk_update.py -w
#       cd install; $(PYTHON) mk_update.py -w; cd ..

...


The out-commented version with multi-command due to cd's doesn't 
lead to a deletion of the broken target upon execution error in 
the py script. While the action version (cd's done inside the 
script now), will lead to deletion as wanted when error.

Why? what to do?

(seen on Windows; GNU make 3.81/MingW)


Robert