configure

#!/bin/sh

OPTFLAGS:=-O3 -ffast-math
ifeq ($(RELEASE),)
	OPTFLAGS+=-g
else
	OPTFLAGS+=-flto
endif

WARNINGS:=-Wall -Wextra -Wno-pointer-arith -Wno-unused-parameter
CFLAGS:=-std=c17 $(OPTFLAGS) $(WARNINGS)
LDFLAGS:=$(OPTFLAGS)
PREFIX?=/usr/local
INSTALL?=install
IFLAGS:=-D

all:

define decl
SRC_$1=$(patsubst %,./src/$1/%.c,$2)
OBJ_$1=$(patsubst %,./build/$1/%.o,$2)

all: ./build/$1

./build/$1:
	@mkdir -p $$@

./build/$1/%.o: ./src/$1/%.c
	$$(CC) -o $$@ -c $$< $$(CFLAGS) $$(CFLAGS_$1)
endef

define exec
all: ./build/$1/$1
install-exec: ./build/$1/$1

./build/$1/$1: $(OBJ_$1) $2
	$$(CC) -o $$@ $$^ $$(LDFLAGS) $$(LDFLAGS_$1)
endef

define lib
all: ./build/$1/$1.ar ./build/$1/$1.so
install-lib: ./build/$1/$1.ar ./build/$1/$1.so

./build/$1/$1.ar: $(OBJ_$1) $2
	$(AR) rcs $$@ $$^ $$(LDFLAGS_$1)

./build/$1/$1.so: $(OBJ_$1) $2
	$(CC) -fPIC -shared -o $$@ $$^ $$(LDFLAGS_$1)
endef

define dev
install-dev: $(patsubst %,./include/%.h,$1)
endef

clean:
	rm -rf ./build/*

install-exec:
	$(INSTALL) $(IFLAGS) -s $^ -t $(PREFIX)/bin

install-lib:
	$(INSTALL) $(IFLAGS) $^ -t $(PREFIX)/lib

install-dev:
	$(INSTALL) $(IFLAGS) $^ -t $(PREFIX)/include/$(PROJECT)

install: install-exec install-lib install-dev
PROJECT:=terra

include common.mk

CFLAGS+=-I./ -I./include

$(eval $(call decl,libterra,util loop dynstr dynarr piper path gem pget))
$(eval $(call decl,libpcgi,pcgi))

$(eval $(call decl,rover,main gui draw line rover))
$(eval $(call decl,ares,main client cfg mod))

$(eval $(call exec,rover,$(OBJ_libterra)))
$(eval $(call exec,ares,$(patsubst %,./build/libterra/%.o,util loop dynarr)))
$(eval $(call lib,libpcgi,$(patsubst %,./build/libterra/%.o,util)))
$(eval $(call lib,libterra))
$(eval $(call dev,terra pcgi))

LDFLAGS_rover:=$(shell pkg-config --libs x11) -lutil
LDFLAGS_ares:=-lrt