Makefile

# LibName and LibVersion
T= crypto
V= 0.3.1

CRYPTO_ENGINE ?= openssl
# Getting needed variables from OS
UNAME ?= $(shell uname)
DESTDIR ?= /
PKG_CONFIG ?= pkg-config
GCRYPT_CONFIG ?= libgcrypt-config
LUA_IMPL ?= lua
LUA_LIBDIR ?= ${DESTDIR}$(shell $(PKG_CONFIG) --variable INSTALL_CMOD $(LUA_IMPL))
LUA_CF ?= $(shell $(PKG_CONFIG) --cflags $(LUA_IMPL))


ifeq ($(CRYPTO_ENGINE), openssl)
LUACRYPTO_LD ?= -L$(shell $(PKG_CONFIG) --variable libdir openssl) -lcrypto -lssl
LUACRYPTO_CF ?= -I$(shell $(PKG_CONFIG) --variable includedir openssl) -DCRYPTO_OPENSSL=1
endif
ifeq ($(CRYPTO_ENGINE), gcrypt)
LUACRYPTO_LD ?= $(shell $(GCRYPT_CONFIG) --libs)
LUACRYPTO_CF ?= $(shell $(GCRYPT_CONFIG) --cflags) -DCRYPTO_GCRYPT=1
endif
ifeq ($(UNAME), Linux)
LIB_OPTION ?= -shared
endif
ifeq ($(UNAME), Darwin)
LIB_OPTION ?= -bundle -undefined dynamic_lookup
endif

# Compilation directives
OPTS ?= -O2 -fPIC -std=c99
CF ?= $(OPTS) $(CFLAGS) $(LUA_CF) $(LUACRYPTO_CF)
LF ?= $(LDFLAGS) $(LIB_OPTION) $(LUACRYPTO_LD)
CC ?= gcc


OBJ = src/${T}.o
SRC = src/${T}.c
HDR = src/${T}.h
LIBNAME = ${T}.so
LIBPATH = src/${LIBNAME}

all: ${LIBPATH}

${OBJ}:
	$(CC) $(CF) -c -o ${OBJ} ${SRC}

${LIBPATH}: ${OBJ}
	@export MACOSX_DEPLOYMENT_TARGET="10.3";
	$(CC) -o ${LIBPATH} ${OBJ} $(LF)

install:
	@mkdir -p $(LUA_LIBDIR)
	@cp -f ${LIBPATH} $(LUA_LIBDIR)

clean:
	@rm -f ${LIBPATH} ${OBJ}

uninstall: clean
	@cd $(LUA_LIBDIR);
	@rm -f ${LIBNAME}