##### Build defaults #####
CC = clang
TARGET =            litls.so
PREFIX =            /usr/local
CFLAGS =            -O3 -Wall -pedantic -DNDEBUG -fPIC
LUA_INCLUDE_DIR =   $(PREFIX)/include/luajit-2.1

BUILD_CFLAGS =      -I$(LUA_INCLUDE_DIR) -I. -Ibearssl -Ix509

# BearSSL files compile with relaxed warnings (upstream code)
BEARSSL_CFLAGS =    -O3 -DNDEBUG -fPIC -I. -Ibearssl -Wno-incompatible-function-pointer-types -Wno-incompatible-pointer-types-discards-qualifiers

OBJS = litls_base64.o litls_rng.o \
       litls_sha1.o litls_sha256.o litls_sha384.o litls_sha512.o \
       litls_hmac.o litls_hkdf.o \
       litls_chacha20.o litls_poly1305.o litls_chacha20poly1305.o \
       litls_x25519.o litls_ed25519.o \
       litls_aes.o litls_gcm.o \
       litls_ecdsa_p256.o litls_ecdsa_p384.o litls_rsa_verify.o \
       litls_pem_encode.o litls_openssh.o \
       litls_lua.o

X509_OBJS = x509_asn1.o x509_parse.o x509_verify.o x509_csr.o

TLS13_OBJS = tls13_record.o tls13_keys.o tls13_handshake.o tls13_client.o tls13_server.o

# BearSSL objects are discovered dynamically from bearssl/ sources
BEARSSL_SRCS = $(wildcard bearssl/*.c)
BEARSSL_OBJS = $(patsubst bearssl/%.c,bearssl_%.o,$(BEARSSL_SRCS))

.PHONY: all clean

.c.o:
	$(CC) -c $(CFLAGS) $(CPPFLAGS) $(BUILD_CFLAGS) -o $@ $<

bearssl_%.o: bearssl/%.c
	$(CC) -c $(BEARSSL_CFLAGS) -o $@ $<

x509_%.o: x509/%.c
	$(CC) -c $(CFLAGS) $(CPPFLAGS) $(BUILD_CFLAGS) -o $@ $<

tls13_%.o: tls13/%.c
	$(CC) -c $(CFLAGS) $(CPPFLAGS) $(BUILD_CFLAGS) -o $@ $<

all: $(TARGET)

$(TARGET): $(OBJS) $(BEARSSL_OBJS) $(X509_OBJS) $(TLS13_OBJS)

clean:
	rm -f *.o $(TARGET)