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# Copyright (c) 2014, Loïc Hoguin <[email protected]>
# This file is part of erlang.mk and subject to the terms of the ISC License.
.PHONY: clean-c_src
# todo
# Configuration.
C_SRC_DIR = $(CURDIR)/c_src
C_SRC_ENV ?= $(C_SRC_DIR)/env.mk
C_SRC_OPTS ?=
C_SRC_OUTPUT ?= $(CURDIR)/priv/$(PROJECT).so
# System type and C compiler/flags.
UNAME_SYS := $(shell uname -s)
ifeq ($(UNAME_SYS), Darwin)
CC ?= cc
CFLAGS ?= -O3 -std=c99 -arch x86_64 -flat_namespace -undefined suppress -finline-functions -Wall -Wmissing-prototypes
else ifeq ($(UNAME_SYS), FreeBSD)
CC ?= cc
CFLAGS ?= -O3 -std=c99 -finline-functions -Wall -Wmissing-prototypes
else ifeq ($(UNAME_SYS), Linux)
CC ?= gcc
CFLAGS ?= -O3 -std=c99 -finline-functions -Wall -Wmissing-prototypes
endif
CFLAGS += -fPIC -I $(ERTS_INCLUDE_DIR) -I $(ERL_INTERFACE_INCLUDE_DIR)
LDLIBS += -L $(ERL_INTERFACE_LIB_DIR) -lerl_interface -lei
LDFLAGS += -shared
# Verbosity.
c_src_verbose_0 = @echo " C_SRC " $(?F);
c_src_verbose = $(c_src_verbose_$(V))
# Targets.
ifeq ($(wildcard $(C_SRC_DIR)/Makefile),)
app:: $(C_SRC_ENV)
@mkdir -p priv/
$(c_src_verbose) $(CC) $(CFLAGS) $(C_SRC_DIR)/*.c \
$(LDFLAGS) $(LDLIBS) -o $(C_SRC_OUTPUT) $(C_SRC_OPTS)
$(C_SRC_ENV):
@erl -noshell -noinput -eval "file:write_file(\"$(C_SRC_ENV)\", \
io_lib:format( \
\"ERTS_INCLUDE_DIR ?= ~s/erts-~s/include/~n\" \
\"ERL_INTERFACE_INCLUDE_DIR ?= ~s~n\" \
\"ERL_INTERFACE_LIB_DIR ?= ~s~n\", \
[code:root_dir(), erlang:system_info(version), \
code:lib_dir(erl_interface, include), \
code:lib_dir(erl_interface, lib)])), \
erlang:halt()."
-include $(C_SRC_ENV)
else
ifneq ($(wildcard $(C_SRC_DIR)),)
app::
$(MAKE) -C $(C_SRC_DIR)
clean::
$(MAKE) -C $(C_SRC_DIR) clean
endif
endif
clean:: clean-c_src
clean-c_src:
$(gen_verbose) rm -f $(C_SRC_ENV) $(C_SRC_OUTPUT)
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