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I have a Makefile in:
project/all_app/myapp/src/Makefile
I also have a master Depend.mk in
project/Depend.mk
Can I include the main Makefile by using the relative path?
include ../../../../Depend.mk
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The command section of a makefile rule may recursively call "make". We can use this to organize a multipart project, or set of projects, into a set of subdirectories which each have their own makefile.
Normally you should call your makefile either makefile or Makefile . (We recommend Makefile because it appears prominently near the beginning of a directory listing, right near other important files such as README .) The first name checked, GNUmakefile , is not recommended for most makefiles.
From make manpage: $@ is: The file name of the target of the rule. If the target is an archive member, then '$@' is the name of the archive file. In a pattern rule that has multiple targets (see Introduction to Pattern Rules), '$@' is the name of whichever target caused the rule's recipe to be run.
The ifeq directive begins the conditional, and specifies the condition. It contains two arguments, separated by a comma and surrounded by parentheses. Variable substitution is performed on both arguments and then they are compared.
Be warned that make's include starts at pwd, not the path to the Makefile. (so make -f will probably cause problems)
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