# Copyright (c) 2023 Emma Tebibyte <emma@tebibyte.media>
# Copyright (c) 2023 DTB <trinity@trinity.moe>
# SPDX-License-Identifier: FSFAP
#
# Copying and distribution of this file, with or without modification, are
# permitted in any medium without royalty provided the copyright notice and this
# notice are preserved.  This file is offered as-is, without any warranty.

# If we want to use POSIX make we can’t use ifeq
# .POSIX:
# .PRAGMA: posix_202x
.PHONY: clean
.PHONY: install
.PHONY: test

PREFIX=/usr/local
CC=cc
CFLAGS=-O3 -Lbuild

ifeq ($(CC), gcc)
	CFLAGS=-O3 -s -Wl,-z,noseparate-code,-z,nosectionheader -flto -Lbuild
endif

ifeq ($(CC), clang)
	CFLAGS=-O3 -Wall -Lbuild
endif

ifeq ($(CC), tcc)
	CFLAGS=-O3 -s -Wl -flto -Lbuild
endif

build: build_dir false intcmp scrut str strcmp true

build_dir:
	mkdir -p build

clean:
	rm -rf build/

install: build
	mkdir -p $(PREFIX)/bin $(PREFIX)/lib $(PREFIX)/man/man1 $(PREFIX)/man/man3
	cp -f build/*.o $(PREFIX)/lib/
	cp -f build/*.so $(PREFIX)/lib/
	cp -f build/* $(PREFIX)/bin/
	cp -f docs/*.1 $(PREFIX)/man/man1/
	cp -f docs/*.3 $(PREFIX)/man/man3/

test: build
	tests/cc-compat.sh
	tests/posix-compat.sh

false: src/false.c build_dir
	$(CC) $(CFLAGS) -o build/false src/false.c

intcmp: src/intcmp.c build_dir
	$(CC) $(CFLAGS) -o build/intcmp src/intcmp.c

scrut: src/scrut.c libfileis build_dir
	$(CC) $(CFLAGS) -lfileis -o build/scrut src/scrut.c

str: src/str.c build_dir
	$(CC) $(CFLAGS) -o build/str src/str.c

strcmp: src/strcmp.c build_dir
	$(CC) $(CFLAGS) -o build/strcmp src/strcmp.c

true: src/true.c build_dir
	$(CC) $(CFLAGS) -o build/true src/true.c

libfileis: src/libfileis.c src/libfileis.h build_dir
	$(CC) $(CFLAGS) -c -fPIC -o build/libfileis.o src/libfileis.c
	$(CC) -shared -o build/libfileis.so build/libfileis.o