CXXFLAGS = -DNDEBUG -g -O2
# the following options reduce code size, but breaks link or makes link very slow on some systems
# CXXFLAGS += -ffunction-sections -fdata-sections
# LDFLAGS += -Wl,--gc-sections
ARFLAGS = -cr	# ar needs the dash on OpenBSD
RANLIB = ranlib
CP = cp
MKDIR = mkdir
EGREP = egrep
UNAME = $(shell uname)
ISX86 = $(shell uname -m | $(EGREP) -c "i.86|x86|i86")
ISMINGW = $(shell uname | $(EGREP) -c "MINGW32")

# Default prefix for make install
ifeq ($(PREFIX),)
PREFIX = /usr
endif

ifeq ($(CXX),gcc)	# for some reason CXX is gcc on cygwin 1.1.4
CXX = g++
endif

ifeq ($(ISX86),1)

GCC34_OR_LATER = $(shell $(CXX) --version 2>&1 | $(EGREP) -c "\(GCC\) (3.[4-9]|[4-9])")
GCC42_OR_LATER = $(shell $(CXX) --version 2>&1 | $(EGREP) -c "\(GCC\) (4.[2-9]|[5-9])")
INTEL_COMPILER = $(shell $(CXX) --version 2>&1 | $(EGREP) -c "\(ICC\)")
GAS210_OR_LATER = $(shell echo "" | $(AS) -v 2>&1 | $(EGREP) -c "GNU assembler version (2.[1-9][0-9]|[3-9])")

ifneq ($(GCC34_OR_LATER) $(INTEL_COMPILER),0 0)
ifneq ($(GCC42_OR_LATER),0)
CXXFLAGS += -march=native -mtune=native
else
# -msse2 is in GCC 3.3, but it causes internal compiler error on salsa.cpp,
# so don't use it unless we're at GCC 3.4 or later
# actually, we're not using SSE2 intrinsics anymore, and -msse2 causes invalid instructions on non-SSE2 CPUs
# CXXFLAGS += -msse2
endif
endif

ifeq ($(GAS210_OR_LATER),0)	# .intel_syntax wasn't supported until GNU assembler 2.10
CXXFLAGS += -DCRYPTOPP_DISABLE_ASM
else
ifeq ($(UNAME),SunOS)
CXXFLAGS += -Wa,--divide	# allow use of "/" operator
endif
endif

endif

ifeq ($(ISMINGW),1)
LDLIBS += -lws2_32
endif

ifeq ($(UNAME),)	# for DJGPP, where uname doesn't exist
CXXFLAGS += -mbnu210
else
CXXFLAGS += -pipe
endif

ifeq ($(UNAME),Linux)
LDFLAGS += -pthread
endif

ifeq ($(UNAME),Darwin)
AR = libtool
ARFLAGS = -static -o
CXX = c++
IS_GCC2 = $(shell $(CXX) -v 2>&1 | $(EGREP) -c gcc-932)
ifeq ($(IS_GCC2),1)
CXXFLAGS += -fno-coalesce-templates -fno-coalesce-static-vtables
LDLIBS += -lstdc++
LDFLAGS += -flat_namespace -undefined suppress -m
endif
endif

ifeq ($(UNAME),SunOS)
LDLIBS += -lnsl -lsocket
ifeq ($(CXX),CC)	# override flags for CC (Solaris native C++ compiler)
CXXFLAGS = -DNDEBUG -O -g -native
LDFLAGS =
ifeq ($(ISX86),1)
# SSE2 intrinsics should work in Sun Studio 12, but we're not using SSE2 intrinsics anymore
# CXXFLAGS += -xarch=sse2 -D__SSE2__
endif
endif
endif

SRCS = $(wildcard *.cpp)
ifeq ($(SRCS),)				# workaround wildcard function bug in GNU Make 3.77
SRCS = $(shell echo *.cpp)
endif

OBJS = $(SRCS:.cpp=.o)
# test.o needs to be after bench.o for cygwin 1.1.4 (possible ld bug?)
TESTOBJS = bench.o bench2.o test.o validat1.o validat2.o validat3.o adhoc.o datatest.o regtest.o fipsalgt.o dlltest.o
LIBOBJS = $(filter-out $(TESTOBJS),$(OBJS))

DLLSRCS = algebra.cpp algparam.cpp asn.cpp basecode.cpp cbcmac.cpp channels.cpp cryptlib.cpp des.cpp dessp.cpp dh.cpp dll.cpp dsa.cpp ec2n.cpp eccrypto.cpp ecp.cpp eprecomp.cpp files.cpp filters.cpp fips140.cpp fipstest.cpp gf2n.cpp gfpcrypt.cpp hex.cpp hmac.cpp integer.cpp iterhash.cpp misc.cpp modes.cpp modexppc.cpp mqueue.cpp nbtheory.cpp oaep.cpp osrng.cpp pch.cpp pkcspad.cpp pubkey.cpp queue.cpp randpool.cpp rdtables.cpp rijndael.cpp rng.cpp rsa.cpp sha.cpp simple.cpp skipjack.cpp strciphr.cpp trdlocal.cpp
DLLOBJS = $(DLLSRCS:.cpp=.export.o)
LIBIMPORTOBJS = $(LIBOBJS:.o=.import.o)
TESTIMPORTOBJS = $(TESTOBJS:.o=.import.o)
DLLTESTOBJS = dlltest.dllonly.o

all: cryptest.exe

clean:
	$(RM) cryptest.exe libcryptopp.a $(LIBOBJS) $(TESTOBJS) cryptopp.dll libcryptopp.dll.a libcryptopp.import.a cryptest.import.exe dlltest.exe $(DLLOBJS) $(LIBIMPORTOBJS) $(TESTIMPORTOBJS) $(DLLTESTOBJS)

install:
	$(MKDIR) -p $(PREFIX)/include/cryptopp $(PREFIX)/lib $(PREFIX)/bin
	$(CP) *.h $(PREFIX)/include/cryptopp
	$(CP) *.a $(PREFIX)/lib
	$(CP) *.exe $(PREFIX)/bin

libcryptopp.a: $(LIBOBJS)
	$(AR) $(ARFLAGS) $@ $(LIBOBJS)
	$(RANLIB) $@

cryptest.exe: libcryptopp.a $(TESTOBJS)
	$(CXX) -o $@ $(CXXFLAGS) $(TESTOBJS) -L. -lcryptopp $(LDFLAGS) $(LDLIBS)

nolib: $(OBJS)		# makes it faster to test changes
	$(CXX) -o ct $(CXXFLAGS) $(OBJS) $(LDFLAGS) $(LDLIBS)

dll: cryptest.import.exe dlltest.exe

cryptopp.dll: $(DLLOBJS)
	$(CXX) -shared -o $@ $(CXXFLAGS) $(DLLOBJS) $(LDFLAGS) $(LDLIBS) -Wl,--out-implib=libcryptopp.dll.a

libcryptopp.import.a: $(LIBIMPORTOBJS)
	$(AR) $(ARFLAGS) $@ $(LIBIMPORTOBJS)
	$(RANLIB) $@

cryptest.import.exe: cryptopp.dll libcryptopp.import.a $(TESTIMPORTOBJS)
	$(CXX) -o $@ $(CXXFLAGS) $(TESTIMPORTOBJS) -L. -lcryptopp.dll -lcryptopp.import $(LDFLAGS) $(LDLIBS)

dlltest.exe: cryptopp.dll $(DLLTESTOBJS)
	$(CXX) -o $@ $(CXXFLAGS) $(DLLTESTOBJS) -L. -lcryptopp.dll $(LDFLAGS) $(LDLIBS)

adhoc.cpp: adhoc.cpp.proto
ifeq ($(wildcard adhoc.cpp),)
	cp adhoc.cpp.proto adhoc.cpp
else
	touch adhoc.cpp
endif

%.dllonly.o : %.cpp
	$(CXX) $(CXXFLAGS) -DCRYPTOPP_DLL_ONLY -c $< -o $@

%.import.o : %.cpp
	$(CXX) $(CXXFLAGS) -DCRYPTOPP_IMPORTS -c $< -o $@

%.export.o : %.cpp
	$(CXX) $(CXXFLAGS) -DCRYPTOPP_EXPORTS -c $< -o $@

%.o : %.cpp
	$(CXX) $(CXXFLAGS) -c $<