Makefile

Links

• https://www.gnu.org/software/make/manual/make.html

• http://clarkgrubb.com/makefile-style-guide

• http://gromnitsky.users.sourceforge.net/articles/notes-for-new-make-users/

Example

input_dir := input
output_dir := output

input_files := $(wildcard $(input_dir)/*.in)
output_files := $(patsubst $(input_dir)/%.in,$(output_dir)/%.out,$(input_files))

vpath %.in $(input_dir)

.DEFAULT_GOAL := all

.PHONY: all
all: $(output_files)

$(output_dir)/%.out: %.in | $(output_dir)
    cp $< $@

$(output_dir):
    mkdir --parent $@

.PHONY: clean
clean:
    $(RM) $(output_files)

# Disable default rules and suffixes
# (improve speed and avoid unexpected behaviour)
MAKEFLAGS := --no-builtin-rules
.SUFFIXES: