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CC=gcc
# Enable debugging
CFLAGS=-ggdb
# We need math
LDFLAGS=-lm
# Output and build options
BINARY=raytrace
BUILD_DIR=build
# Input files
c_files=$(wildcard *.c)
OBJ=$(patsubst %.c, $(BUILD_DIR)/%.o, $(c_files))
# Build rules
# $@ is the %.o file and $^ is the %.c file
$(BUILD_DIR)/%.o: %.c
@mkdir -p $(dir $@)
$(CC) -c -o $@ $^ $(CFLAGS)
# $@ becomes left part thus linked
$(BINARY): $(OBJ)
$(CC) -o $@ $^ $(LDFLAGS)
.PHONY: run show clean
# This will also generate the image
run: $(BINARY)
./$(BINARY) | convert - test.png
show: run
xdg-open test.png
clean:
rm -f $(OBJ) $(BINARY)
rmdir $(BUILD_DIR)
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