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#
# Makefile
#
#
# EXAMPLE DIRECTORY STRUCTURE
# --------------------------------------------------------------------
# .
# ├── build
# │ ├── bin
# │ │ └── *
# │ ├── dep
# │ │ ├── *.d
# │ └── obj
# │ └── *.o
# ├── src
# │ ├── *
# │ │ ├── *.c
# │ │ └── *.h
# │ ├── *.c
# │ └── *.h
# ├── test
# │ └── *.c
# ├── LICENSE
# ├── Makefile
# └── README
#
# VARIABLES
# --------------------------------------------------------------------
proj=dslibc
testframework:=criterion
# Compiler options
CC:=gcc
CFLAGS:=-std=c17 -Wall -Werror -g
# Build directories
bindir:=build/bin
depdir:=build/dep
objdir:=build/obj
# Files
srcfiles:=$(shell find src -name '*.c')
objects:=$(patsubst %.c, $(objdir)/%.o, $(notdir $(srcfiles)))
dependencies:=$(patsubst %.c, $(depdir)/%.d, $(notdir $(srcfiles)))
tests:=$(wildcard test/*.c)
# Executable files
bin:=$(bindir)/$(proj)
testbins:=$(patsubst %.c,$(bindir)/%, $(notdir $(tests)))
# TARGETS
# --------------------------------------------------------------------
.PHONY: build
build: $(bindir) $(depdir) $(objdir) $(objects) $(bin)
.PHONY: clean
clean:
-rm -r build
.PHONY: info
info:
@echo srcfiles: $(srcfiles)
@echo objects: $(objects)
@echo dependencies: $(dependencies)
@echo tests: $(tests)
@echo bin: $(bin)
@echo testbins: $(testbins)
.PHONY: test
test: build $(testbins)
for test in $(testbins); do ./$$test --verbose --jobs 1; done
# AUTOMATIC TARGETS
# --------------------------------------------------------------------
# Create directories
$(bindir) $(depdir) $(objdir):
mkdir -p $@
# Build MAIN objects & dependencies
$(objdir)/%.o: src/%.c
$(CC) $(CFLAGS) -o $@ -c $< -MMD -MF $(depdir)/$(@F:.o=.d)
# Build SUB-MODULE objects & dependencies
$(objdir)/%.o:: src/*/%.c
$(CC) $(CFLAGS) -o $@ -c $< -MMD -MF $(depdir)/$(@F:.o=.d)
# Build MAIN executable
$(bin): $(objects)
$(CC) $(CFLAGS) -o $@ $^
# Build TEST executable (note: must filter-out main function to work)
$(bindir)/%: $(tests) $(filter-out $(objdir)/main.o,$(objects))
$(CC) $(CFLAGS) -o $@ -l $(testframework) $^
# INCLUDES
# --------------------------------------------------------------------
-include $(dependencies)
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