I am trying to get my dependencies working for obvious reasons. But when I try
what has been offered, it lacks the primary goal of recompiling objects when
any of the dependencies (header files) change.
I like the gcc -MD command as it provides the proper dependencies, but I am
having trouble having my make file actually be able to use it. Here is an
example of what I am grabbing from paulandlesley.org/autodep.html
a.o : a.cpp
@gcc -MD -c a.cpp; \
cp $*.d $*.P; \
sed -e 's/#.*//' -e 's/^[^:]*: *//' -e 's/ *\\$$//' \
-e '/^$$/ d' -e 's/$$/ :/' < $*.d >> $*.P; \
rm -f $*.d
gcc -c a.cpp -o a.o
here the command works the first time fine. Then I change the
header a.h and run make again and it says nothing needs to be done.
Dan
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