Makefile

SRC = c_src/portaudio_nif.c c_src/portaudio_nif/erl_interop.c
SRC += c_src/portaudio_nif/pa_conversions.c

ERLANG_PATH = $(shell erl -eval 'io:format("~s", [lists:concat([code:root_dir(), "/erts-", erlang:system_info(version), "/include"])])' -s init stop -noshell)
CFLAGS += -pthread -O2 -Wall -g -Ic_src -I$(ERLANG_PATH) --std=c11

KERNEL_NAME := $(shell uname -s)

LIB_NAME = priv/portaudio_nif.so
ifneq ($(CROSSCOMPILE),)
	LIB_CFLAGS := -shared -fPIC -fvisibility=hidden
	SO_LDFLAGS := -Wl,-soname,libportaudio.so.0
else
	ifeq ($(KERNEL_NAME), Linux)
		LIB_CFLAGS := -shared -fPIC -fvisibility=hidden
		SO_LDFLAGS := -Wl,-soname,libportaudio.so.0
	endif
	ifeq ($(KERNEL_NAME), Darwin)
		LIB_CFLAGS := -dynamiclib -undefined dynamic_lookup
	endif
	ifeq ($(KERNEL_NAME), $(filter $(KERNEL_NAME),OpenBSD FreeBSD NetBSD))
		LIB_CFLAGS := -shared -fPIC
	endif
endif

LIB_CFLAGS += -lportaudio

all: $(LIB_NAME)

$(LIB_NAME): $(SRC)
	mkdir -p priv
	$(CC) $(CFLAGS) $(LIB_CFLAGS) $(SO_LDFLAGS) $^ -o $@

clean:
	rm -f $(LIB_NAME)

.PHONY: all clean