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nerves_neopixel

0.3.1
0.4.0 0.3.2 0.3.1 0.3.0

Drive WS2812B "NeoPixel" RGB LED strips from a Raspberry Pi using Elixir.

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nerves_neopixel Makefile
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Makefile 

# Variables to override

#

# CC            C compiler

# CROSSCOMPILE	crosscompiler prefix, if any

# CFLAGS	compiler flags for compiling all C files

# ERL_CFLAGS	additional compiler flags for files using Erlang header files

# ERL_EI_LIBDIR path to libei.a

# LDFLAGS	linker flags for linking all binaries

# ERL_LDFLAGS	additional linker flags for projects referencing Erlang libraries



# Look for the EI library and header files

# For crosscompiled builds, ERL_EI_INCLUDE_DIR and ERL_EI_LIBDIR must be

# passed into the Makefile.

ifeq ($(ERL_EI_INCLUDE_DIR),)

ERL_ROOT_DIR = $(shell erl -eval "io:format(\"~s~n\", [code:root_dir()])" -s init stop -noshell)

ifeq ($(ERL_ROOT_DIR),)

   $(error Could not find the Erlang installation. Check to see that 'erl' is in your PATH)

endif

ERL_EI_INCLUDE_DIR = "$(ERL_ROOT_DIR)/usr/include"

ERL_EI_LIBDIR = "$(ERL_ROOT_DIR)/usr/lib"

endif

# Set Erlang-specific compile and linker flags

ERL_CFLAGS ?= -I$(ERL_EI_INCLUDE_DIR)

ERL_LDFLAGS ?= -L$(ERL_EI_LIBDIR) -lei

LDFLAGS +=

CFLAGS += -std=gnu99

# Enable for debug messages

CFLAGS += -DDEBUG

CC ?= $(CROSSCOMPILER)gcc



SRC = $(wildcard src/*.c) src/rpi_ws281x/dma.c src/rpi_ws281x/mailbox.c \

  src/rpi_ws281x/mailbox.c src/rpi_ws281x/pwm.c src/rpi_ws281x/rpihw.c \

	src/rpi_ws281x/ws2811.c



OBJ = $(SRC:.c=.o)



.PHONY: all clean



all: priv/rpi_ws281x



%.o: %.c

	$(CC) -c $(ERL_CFLAGS) $(CFLAGS) -o $@ $<



priv/rpi_ws281x: $(OBJ)

	@mkdir -p priv

	$(CC) $^ $(ERL_LDFLAGS) $(LDFLAGS) -o $@



clean:

	rm -f priv/rpi_ws281x src/*.o src/rpi_ws281x/*.o