Super makefile

makefile

#   Copyright 2019 Raef Coles
#
#   This program is free software: you can redistribute it and/or modify
#   it under the terms of the GNU General Public License as published by
#   the Free Software Foundation, either version 3 of the License, or
#   (at your option) any later version.

#   This program is distributed in the hope that it will be useful,
#   but WITHOUT ANY WARRANTY; without even the implied warranty of
#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#   GNU General Public License for more details.

#   You should have received a copy of the GNU General Public License
#   along with this program.  If not, see <https://www.gnu.org/licenses/>.

#===============================================================================
# You can touch this bit

EXE		= dockingd dockingctl

SRC_DIR		= ./src
BIN_DIR		= ./bin
BLD_DIR		= ./build
EMBED_DIR	= ./embed

CCFLAGS		= -c -O3 -g -Werror
LDFLAGS		= -lrt

CC		= gcc
LD		= ld

#===============================================================================
# Here there be dragons

DIRS    = $(BIN_DIR) $(BLD_DIR) $(MKF_DIR)

VPATH = $(shell find $(SRC_DIR) -type d) $(shell find $(EMBED_DIR 2>/dev/null) -type d)
_EXE  = $(addprefix $(BIN_DIR)/, $(EXE))
SRC   = $(notdir $(shell find $(SRC_DIR) -type f -name *.cpp -o -name *.c))
EMBED = $(notdir $(shell find $(EMBED_DIR) -type f 2>/dev/null))
OBJ   = $(addprefix $(BLD_DIR)/, \
		$(filter-out $(EXE:=.o), \
		$(filter %.o, \
		$(EMBED:=.o) $(SRC:.cpp=.o)  $(SRC:.c=.o)))) \

.PHONY: all clean

all: $(_EXE)

$(BIN_DIR)/%: $(BLD_DIR)/%.o $(OBJ) | $(BIN_DIR)
	$(CC) $(LDFLAGS) $^ -o $@

$(BLD_DIR)/%.o: %.c %.h | $(BLD_DIR)
	$(CC) $(CCFLAGS) -c $< -o $@

$(BLD_DIR)/%.o: %.c | $(BLD_DIR)
	$(CC) $(CCFLAGS) -c $< -o $@

$(BLD_DIR)/%.o: $(EMBED_DIR)/% | $(BLD_DIR)
	$(LD) -r -b binary $< -o $@

$(DIRS):
	mkdir -p $@

clean:
	gio trash $(DIRS) || rm -rf $(DIRS)