Question

How can I list the current value of all variables (also called macros) in a Makefile when running make?

E.g. if this is in the Makefile:

CUR-DIR := $(shell /bin/pwd)
LOG-DIR := $(CUR-DIR)/make-logs

Then I would like it to tell me:

CUR-DIR = /home/johv/src/test
LOG-DIR = /home/johv/src/test/make-logs

Answer 1

I ended up doing it like this:

gmake -pn | grep -A1 "^# makefile"| grep -v "^#\|^--" | sort | uniq > makevars.txt

which gives:

CUR-DIR := /home/johv/src/test
LOG-DIR := /home/johv/src/test/make-logs
MAKEFILE_LIST :=  Makefile
MAKEFLAGS = pn
SHELL = /bin/sh
VARS_OLD := [...]

gmake -pn is really verbose and looks kinda like this:

# environment
GNOME2_PATH = /usr/local:/opt/gnome:/usr:/usr/local:/opt/gnome:/usr
# automatic
@F = $(notdir $@)
# makefile
SHELL = /bin/sh
# default
RM = rm -f