Question

I would like to tell (g)make to include some common initializations from a separate file knowing the relative location of the included file with respect to the main Makefile.

However in the manuals I cannot find any built-in variable that would, for example, give you the name of the current Makefile.

For example if I want to include the content of a file in the same directory as the current make file, instead of hard-wiring the location of the include:

# MAIN Makefile : ./scripts/make/TaskA.mk

include ./scripts/make/Common.inc
...

I would like to write something like the following assuming that _MAKEFILE_ contains the TaskA.mk location:

# MAIN Makefile : ./scripts/make/TaskA.mk

MAKEFILE_DIR=$(dirname $(_MAKE_FILE_))

include $(MAKEFILE_DIR)/Common.inc

Answer 1

Doesn’t the manual give a recipe based on MAKEFILE_LIST?

Basically

this_makefile := $(lastword $(MAKEFILE_LIST))

before any include directives should do the trick.