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# Copyright (c) 2014-2015, Loïc Hoguin <[email protected]>
# This file is part of erlang.mk and subject to the terms of the ISC License.
.PHONY: clean-c_src distclean-c_src-env
# Configuration.
C_SRC_DIR ?= $(CURDIR)/c_src
C_SRC_ENV ?= $(C_SRC_DIR)/env.mk
C_SRC_OUTPUT ?= $(CURDIR)/priv/$(PROJECT).so
C_SRC_TYPE ?= shared
# System type and C compiler/flags.
ifeq ($(PLATFORM),darwin)
CC ?= cc
CFLAGS ?= -O3 -std=c99 -arch x86_64 -finline-functions -Wall -Wmissing-prototypes
CXXFLAGS ?= -O3 -arch x86_64 -finline-functions -Wall
LDFLAGS ?= -arch x86_64 -flat_namespace -undefined suppress
else ifeq ($(PLATFORM),freebsd)
CC ?= cc
CFLAGS ?= -O3 -std=c99 -finline-functions -Wall -Wmissing-prototypes
CXXFLAGS ?= -O3 -finline-functions -Wall
else ifeq ($(PLATFORM),linux)
CC ?= gcc
CFLAGS ?= -O3 -std=c99 -finline-functions -Wall -Wmissing-prototypes
CXXFLAGS ?= -O3 -finline-functions -Wall
endif
CFLAGS += -fPIC -I $(ERTS_INCLUDE_DIR) -I $(ERL_INTERFACE_INCLUDE_DIR)
CXXFLAGS += -fPIC -I $(ERTS_INCLUDE_DIR) -I $(ERL_INTERFACE_INCLUDE_DIR)
LDLIBS += -L $(ERL_INTERFACE_LIB_DIR) -lerl_interface -lei
# Verbosity.
c_verbose_0 = @echo " C " $(?F);
c_verbose = $(c_verbose_$(V))
cpp_verbose_0 = @echo " CPP " $(?F);
cpp_verbose = $(cpp_verbose_$(V))
link_verbose_0 = @echo " LD " $(@F);
link_verbose = $(link_verbose_$(V))
# Targets.
ifeq ($(wildcard $(C_SRC_DIR)),)
else ifneq ($(wildcard $(C_SRC_DIR)/Makefile),)
app:: app-c_src
test-build:: app-c_src
app-c_src:
$(MAKE) -C $(C_SRC_DIR)
clean::
$(MAKE) -C $(C_SRC_DIR) clean
else
ifeq ($(SOURCES),)
SOURCES := $(sort $(call core_find,$(C_SRC_DIR)/,*.c *.C *.cc *.cpp))
endif
OBJECTS = $(addsuffix .o, $(basename $(SOURCES)))
COMPILE_C = $(c_verbose) $(CC) $(CFLAGS) $(CPPFLAGS) -c
COMPILE_CPP = $(cpp_verbose) $(CXX) $(CXXFLAGS) $(CPPFLAGS) -c
app:: $(C_SRC_ENV) $(C_SRC_OUTPUT)
test-build:: $(C_SRC_ENV) $(C_SRC_OUTPUT)
$(C_SRC_OUTPUT): $(OBJECTS)
$(verbose) mkdir -p priv/
$(link_verbose) $(CC) $(OBJECTS) \
$(LDFLAGS) $(if $(filter $(C_SRC_TYPE),shared),-shared) $(LDLIBS) \
-o $(C_SRC_OUTPUT)
%.o: %.c
$(COMPILE_C) $(OUTPUT_OPTION) $<
%.o: %.cc
$(COMPILE_CPP) $(OUTPUT_OPTION) $<
%.o: %.C
$(COMPILE_CPP) $(OUTPUT_OPTION) $<
%.o: %.cpp
$(COMPILE_CPP) $(OUTPUT_OPTION) $<
clean:: clean-c_src
clean-c_src:
$(gen_verbose) rm -f $(C_SRC_OUTPUT) $(OBJECTS)
endif
ifneq ($(wildcard $(C_SRC_DIR)),)
$(C_SRC_ENV):
$(verbose) $(ERL) -eval "file:write_file(\"$(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)])), \
halt()."
distclean:: distclean-c_src-env
distclean-c_src-env:
$(gen_verbose) rm -f $(C_SRC_ENV)
-include $(C_SRC_ENV)
endif
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