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Makefile
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Makefile
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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 = "$(ERL_ROOT_DIR)/usr/lib"
endif
SASS_DIR = libsass
LIB_NAME = priv/sass_nif.so
# Set Erlang-specific compile and linker flags
ERL_CFLAGS ?= -I$(ERL_EI_INCLUDE_DIR) -Ilibsass -Ilibsass/include
ERL_LDFLAGS ?= -Ilibsass -Ilibsass/include -Llibsass/lib
LDFLAGS += -fPIC -shared
CFLAGS += -fPIC -O3 -Wall -Wextra
CC = $(CROSSCOMPILER)g++
ifeq ($(CROSSCOMPILE),)
ifeq ($(shell uname),Darwin)
LDFLAGS += -undefined dynamic_lookup
endif
endif
NPROCS := 1
OS := $(shell uname)
export NPROCS
ifeq ($J,)
ifeq ($(OS),Linux)
NPROCS := $(shell grep -c ^processor /proc/cpuinfo)
else ifeq ($(OS),Darwin)
NPROCS := $(shell sysctl -n hw.logicalcpu)
endif # $(OS)
else
NPROCS := $J
endif # $J
all:
$(MAKE) -C $(SASS_DIR) -j$(NPROCS)
$(MAKE) $(LIB_NAME)
clean: libsass-clean sass_compiler-clean
libsass-clean:
$(MAKE) -C $(SASS_DIR) clean
%.o: %.c
$(CC) -x c++ -c $(ERL_CFLAGS) $(CFLAGS) -o $@ $<
$(LIB_NAME): c_src/sass_nif.o
mkdir -p priv
$(CC) $^ $(ERL_LDFLAGS) $(LDFLAGS) -Bstatic -lsass -lm -lc -o $@
sass_compiler-clean:
rm -rf _build libsass/lib priv/sass_nif.so && rm -f c_src/*.o
.PHONY: all clean