ext-cryptopp/GNUmakefile

547 lines
17 KiB
Makefile

#################################################################
# Tool and flag setup
AS ?= as
AR ?= ar
ARFLAGS ?= -cr # ar needs the dash on OpenBSD
RANLIB ?= ranlib
STRIP ?= strip -s
CP ?= cp
MKDIR ?= mkdir
EGREP ?= egrep
UNAME ?= uname
# Default setting from environment. Disable verbose flag, add create flag
ifeq ($(findstring rv,$(ARFLAGS)),rv)
ARFLAGS = cr
endif
#########################
# CXXFLAGS
# -fPIC is supported, and enabled by default for x86_64.
# We can augment CXXFLAGS if the user exports them in the shell, or if the user
# omits them. However, if the user `make CXXFLAGS="-g1"`, then that's what
# the user gets. Make does not override them, and does not honor our '+='.
CXXFLAGS ?= -DNDEBUG -g2 -O3
# Add -DNDEBUG if nothing specified
ifeq ($(filter -DDEBUG -DNDEBUG,$(CXXFLAGS)),)
CXXFLAGS += -DNDEBUG
endif
# Add a symolize if nothing specified
ifeq ($(filter -g -g1 -g2 -g3,$(CXXFLAGS)),)
CXXFLAGS += -g2
endif
# Add an optimize if nothing specified
ifeq ($(filter -O -O0 -O1 -O2 -O3 -Og -Os -Oz -Ofast,$(CXXFLAGS)),)
CXXFLAGS += -O3
endif
# 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
#########################
# Compilers
# Cygwin change the version string to "g++ (GCC) 4.9.3"
GCC_COMPILER = $(shell $(CXX) -v 2>&1 | $(EGREP) -i -c "^(gcc|g\+\+) version")
CLANG_COMPILER = $(shell $(CXX) --version 2>&1 | $(EGREP) -i -c "clang")
INTEL_COMPILER = $(shell $(CXX) --version 2>&1 | $(EGREP) -i -c "\(ICC\)")
SUN_COMPILER = $(shell $(CXX) -V 2>&1 | $(EGREP) -i -c "CC: Sun")
ifneq ($(GCC_COMPILER),0)
IS_GCC_41 = $(shell $(CXX) -v 2>&1 | $(EGREP) -i -c "^gcc version 4\.1\.")
IS_GCC_42 = $(shell $(CXX) -v 2>&1 | $(EGREP) -i -c "^gcc version 4\.2\.")
IS_GCC_45 = $(shell $(CXX) -v 2>&1 | $(EGREP) -i -c "^gcc version 4\.5\.")
IS_GCC_49 = $(shell $(CXX) -v 2>&1 | $(EGREP) -i -c "^gcc version 4\.9\.")
endif
# Also see LLVM Bug 24200 (https://llvm.org/bugs/show_bug.cgi?id=24200)
# CLANG_ASSEMBLER ?= $(shell $(CXX) -xc -c /dev/null -Wa,-v -o/dev/null 2>&1 | $(EGREP) -i -c "^clang")
# TODO: Uncomment the line above when Clang's integrated assembler can parse and generate code that passes the self tests.
#################################################################
# Platform and architecture detection
MACHINE ?= $(shell $(UNAME) -m)
SYSTEM ?= $(shell $(UNAME) -s)
RELEASE ?= $(shell $(UNAME) -r)
IS_X86 = $(shell echo $(MACHINE)| $(EGREP) -c "i.86|x86|i86|i686|amd64")
IS_X86_64 = $(shell echo $(MACHINE) | $(EGREP) -c "_64|d64")
IS_DARWIN = $(shell echo $(SYSTEM) | $(EGREP) -i -c "darwin")
IS_LINUX = $(shell $(CXX) -dumpmachine 2>&1 | $(EGREP) -i -c "linux")
IS_MINGW = $(shell $(CXX) -dumpmachine 2>&1 | $(EGREP) -i -c "mingw")
IS_CYGWIN = $(shell $(CXX) -dumpmachine 2>&1 | $(EGREP) -i -c "cygwin")
IS_OPENBSD = $(shell $(CXX) -dumpmachine 2>&1 | $(EGREP) -i -c "openbsd")
IS_SUN = $(shell echo $SYSTEM | $(EGREP) -i -c "SunOS")
IS_FEDORA22_i686 = $(shell echo $RELEASE | $(EGREP) -i -c "fc22.i686")
#########################
# May (or may not) be used below
ifeq ($(findstring -m32 -m64,$(CXXFLAGS)),)
ifneq ($(IS_X86_64),0)
M32OR64 = -m64
endif
endif # -m32 or -m64
#################################################################
# User install preferences
# Pick up the user's choice (lower prefix is the standard name)
ifneq ($(prefix),)
PREFIX = $(prefix)
else
# Default prefix for make install
ifeq ($(PREFIX),)
PREFIX = /usr
endif
# Can't put C++ headers in system include
ifneq ($(IS_OPENBSD),0)
PREFIX = /usr/local
endif
endif # prefix
#################################################################
# Undefined behavior and Address sanitizer
# Clang 3.2 and GCC 4.8 and above, i386/i686/x86_64
ifneq ($(IS_X86),0)
# Undefined Behavior Sanitizer (UBsan)
ifeq ($(findstring ubsan,$(MAKECMDGOALS)),ubsan)
CXXFLAGS += -fsanitize=undefined
# CXXFLAGS += -fsanitize-undefined-trap-on-error
endif # UBsan
# Address Sanitizer (Asan)
ifeq ($(findstring asan,$(MAKECMDGOALS)),asan)
CXXFLAGS += -fsanitize=address
endif # Asan
# Test CXXFLAGS in case the user passed the flags directly through it
ifeq ($(findstring -fsanitize=address,$(CXXFLAGS)),-fsanitize=address)
ASAN = 1
endif
ifeq ($(findstring -fsanitize=undefined,$(CXXFLAGS)),-fsanitize=undefined)
UBSAN = 1
endif
# Enforce Sanitizer business logic...
ifeq ($(ASAN)$(UBSAN),11)
$(error Asan and UBsan are mutually exclusive)
endif
endif # IS_X86
#################################################################
# Darwin tweaks
ifneq ($(IS_DARWIN),0)
CXX ?= c++
ifeq ($(AR),ar)
AR = libtool
ARFLAGS = -static -o
endif
#########################
# Build a boolean circuit that says "Darwin && (GCC 4.2 || Clang)"
# MULTIARCH ?= $(shell echo $$(($(IS_DARWIN) * ($(GCC42_OR_LATER) + $(CLANG_COMPILER)))))
MULTIARCH ?= 0
ifneq ($(MULTIARCH),0)
CXXFLAGS += -arch i386 -arch x86_64
endif # MULTIARCH
endif # IS_DARWIN
#################################################################
# i386, i686, x86_64 and friends
ifneq ($(IS_X86),0)
GCC42_OR_LATER = $(shell $(CXX) -v 2>&1 | $(EGREP) -i -c "^gcc version (4.[2-9]|[5-9])")
ICC111_OR_LATER = $(shell $(CXX) --version 2>&1 | $(EGREP) -c "\(ICC\) ([2-9][0-9]|1[2-9]|11\.[1-9])")
# Using system provided assembler. It may be GNU AS (GAS).
GAS210_OR_LATER ?= $(shell $(CXX) -xc -c /dev/null -Wa,-v -o/dev/null 2>&1 | $(EGREP) -c "GNU assembler version (2\.[1-9][0-9]|[3-9])")
GAS217_OR_LATER ?= $(shell $(CXX) -xc -c /dev/null -Wa,-v -o/dev/null 2>&1 | $(EGREP) -c "GNU assembler version (2\.1[7-9]|2\.[2-9]|[3-9])")
GAS219_OR_LATER ?= $(shell $(CXX) -xc -c /dev/null -Wa,-v -o/dev/null 2>&1 | $(EGREP) -c "GNU assembler version (2\.19|2\.[2-9]|[3-9])")
# For testing and development. If CXX=clang++, then it effectively
# enables ASM code paths and engages the integrated assembler.
FORCE_ASM ?= 0
ifneq ($(FORCE_ASM),0)
GAS210_OR_LATER = 1
GAS217_OR_LATER = 1
GAS219_OR_LATER = 1
endif
# Enable PIC for x86_64 targets
ifneq ($(IS_X86_64),0)
CXXFLAGS += -fPIC
endif # PIC for x86_64 targets
#########################
# Cygwin work arounds
ifneq ($(IS_CYGWIN),0)
# CXX is gcc on Cygwin 1.1.4
ifeq ($(CXX),gcc)
CXX = g++
endif # CXX
# -fPIC causes spurious output during compile. Remove it even if the user passed it in.
ifeq ($(findstring -fPIC,$(CXXFLAGS)),-fPIC)
CXXFLAGS := $(subst -fPIC,,$(CXXFLAGS))
endif # -fPIC
# -O3 fails to link with GCC 4.5.3
ifneq ($(IS_GCC_45),0)
ifeq ($(findstring -O3,$(CXXFLAGS)),-O3)
CXXFLAGS := $(subst -O3,-O2,$(CXXFLAGS))
endif # -O3
endif # GCC 4.5
# -O3 crash in MQV validation with GCC 4.9.3
ifneq ($(IS_GCC_49),0)
ifeq ($(findstring -O3,$(CXXFLAGS)),-O3)
CXXFLAGS := $(subst -O3,-O2,$(CXXFLAGS))
endif # -O3
endif # GCC 4.9
endif # Cygwin work arounds
#########################
# F22/i386 crash
ifneq ($(IS_FEDORA22_i686),0)
ifeq ($(findstring -O3,$(CXXFLAGS)),-O3)
CXXFLAGS := $(subst -O3,-O2,$(CXXFLAGS))
endif # -O2
endif # Fedora 22/i686
#########################
# Way back when, '-march=native' caused a compiler crash with GCC on Ubuntu 9 or 10
# Add -march=native if the user did not specify an architecture.
ifeq ($(findstring -m32 -m64,$(CXXFLAGS)),)
CXXFLAGS += -march=native
endif
#########################
# GCC 4.1 and "error: bad value (native) for -march= switch"
ifneq ($(IS_GCC_41),0)
ifneq ($(findstring -march=native,$(CXXFLAGS)),)
ifneq ($(IS_X86_64),0)
CXXFLAGS := $(subst -march=native,-m64,$(CXXFLAGS))
else
CXXFLAGS := $(subst -march=native,-m32,$(CXXFLAGS))
endif
endif
endif
#########################
# Intel work arounds.
# Should this be moved to outside of i386/i686/x86_64 block?
ifneq ($(INTEL_COMPILER),0)
CXXFLAGS += -wd68 -wd186 -wd279 -wd327
ifeq ($(ICC111_OR_LATER),0)
# "internal error: backend signals" occurs on some x86 inline assembly with ICC 9 and some x64 inline assembly with ICC 11.0
# if you want to use Crypto++'s assembly code with ICC, try enabling it on individual files
CXXFLAGS += -DCRYPTOPP_DISABLE_ASM
endif
endif
#########################
# GAS work arounds.
# Should this be moved to outside of i386/i686/x86_64 block?
ifeq ($(GAS210_OR_LATER),0)
CXXFLAGS += -DCRYPTOPP_DISABLE_ASM
else
ifeq ($(GAS217_OR_LATER),0)
CXXFLAGS += -DCRYPTOPP_DISABLE_SSSE3
else
ifeq ($(GAS219_OR_LATER),0)
CXXFLAGS += -DCRYPTOPP_DISABLE_AESNI
endif # GAS219_OR_LATER
endif # GAS217_OR_LATER
ifneq ($(IS_SUN),0)
CXXFLAGS += -Wa,--divide # allow use of "/" operator
endif # IS_SUN
endif # GAS210_OR_LATER
ifneq ($(IS_MINGW),0)
LDLIBS += -lws2_32
endif # IS_MINGW
endif # IS_X86
# Should most of this be moved to outside of i386/i686/x86_64 block?
ifeq ($(IS_LINUX),1)
LDFLAGS += -pthread
ifeq ($(findstring -fopenmp,$(MAKECMDGOALS)),-fopenmp)
LDLIBS += -lgomp
endif # -fopenmp
endif # IS_LINUX
ifneq ($(IS_SUN),0)
LDLIBS += -lnsl -lsocket
M32OR64 = -m$(shell isainfo -b)
endif
ifneq ($(SUN_COMPILER),0) # override flags for CC Sun C++ compiler
CXXFLAGS = -DNDEBUG -O -g0 -native -template=no%extdef $(M32OR64)
AR = $(CXX)
ARFLAGS = -xar -o
RANLIB = true
LDFLAGS =
SUN_CC10_BUGGY = $(shell $(CXX) -V 2>&1 | $(EGREP) -c "CC: Sun .* 5\.10 .* (2009|2010/0[1-4])")
ifneq ($(SUN_CC10_BUGGY),0)
# -DCRYPTOPP_INCLUDE_VECTOR_CC is needed for Sun Studio 12u1 Sun C++ 5.10 SunOS_i386 128229-02 2009/09/21 and was fixed in May 2010
# remove it if you get "already had a body defined" errors in vector.cc
CXXFLAGS += -DCRYPTOPP_INCLUDE_VECTOR_CC
endif # SUN_CC10_BUGGY
endif # SUN_COMPILER
#################################################################
# Public service announcement
# Do not warn for some targets
NO_WARN = GNUmakefile.deps deps system dist zip install install-strip uninstall remove clean distclean
ifeq ($(findstring $(MAKECMDGOALS),$(NO_WARN)),)
UNALIGNED_ACCESS = $(shell $(EGREP) -c "^// \#define CRYPTOPP_NO_UNALIGNED_DATA_ACCESS" config.h)
ifneq ($(UNALIGNED_ACCESS),0)
$(info WARNING: CRYPTOPP_NO_UNALIGNED_DATA_ACCESS is not defined in config.h)
endif
endif # NO_WARN
#################################################################
# Compiler diagnostics and warnings
# -Wall, -Wextra and -Wno-type-limits for GCC 4.3 and above. It needs -Wno-unknown-pragmas due
# to bug https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53431. We can't use -Wall
# unguarded because it lights up CentOS 5 (GCC 4.1) and OpenBSD (4.2.1)
GCC43_OR_LATER = $(shell $(CXX) -v 2>&1 | $(EGREP) -i -c "^gcc version (4\.[3-9]|[5-9])")
ifneq ($(GCC43_OR_LATER),0)
CXXFLAGS += -Wall -Wextra -Wno-type-limits -Wno-unknown-pragmas
endif
# -Wall, -Wextra and -Wno-tautological-compare for Clang
ifneq ($(CLANG_COMPILER),0)
CXXFLAGS += -Wall -Wextra -Wno-tautological-compare
endif
# -Wcast-align if not UNALIGNED_ACCESS
ifeq ($(UNALIGNED_ACCESS),0)
# CXXFLAGS += -Wcast-align
endif
ifeq ($(findstring -pipe,$(CXXFLAGS)),)
CXXFLAGS += -pipe
endif
#################################################################
# Sources, objects and temporaries
WIN_SRCS = pch.cpp fipsalgt.cpp cryptlib_bds.cpp
ifeq ($(IS_MINGW),0)
WIN_SRCS += winpipes.cpp
endif
# List of sources to compile and objects to link
SRCS = $(filter-out $(WIN_SRCS), $(wildcard *.cpp))
OBJS = $(SRCS:.cpp=.o)
# Compiling with --save-temps creates these
TEMPS = $(SRCS:.cpp=.s) $(SRCS:.cpp=.ii)
# test.o needs to be after bench.o for cygwin 1.1.4 (possible ld bug?)
TESTOBJS = bench.o bench2.o test.o validat0.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 = $(TESTOBJS:.o=.import.o)
DLLTESTOBJS = dlltest.dllonly.o
#################################################################
# Recipes
# For various targets, see https://www.gnu.org/prep/standards/html_node/Standard-Targets.html
# We want to include libcryptopp, cryptest, clean, distclean, install, install-strip, uninstall
all cryptest: cryptest.exe
static: libcryptopp.a
ifeq ($(IS_DARWIN),0)
shared dynamic: libcryptopp.so
else
shared dynamic: libcryptopp.dylib
endif
asan ubsan: libcryptopp.a cryptest.exe
.PHONY: test check
test check: cryptest.exe
./cryptest.exe v
.PHONY: clean
clean:
-$(RM) cryptest.exe libcryptopp.a libcrypto++.a libcryptopp.so libcrypto++.so libcryptopp.dylib $(LIBOBJS) $(TESTOBJS) $(TEMPS) cryptopp.dll libcryptopp.dll.a libcryptopp.import.a cryptest.import.exe dlltest.exe $(DLLOBJS) $(LIBIMPORTOBJS) $(TESTI MPORTOBJS) $(DLLTESTOBJS)
ifneq ($(IS_DARWIN),0)
-$(RM) -r cryptest.exe.dSYM
endif
.PHONY: distclean
distclean:
-$(RM) -r GNUmakefile.deps *.o *.obj *.a *.so *.dll *.dylib *.exe *.s *.ii a.out *~ \.*~ *\.h\. *\.cpp\. *.bu *.bak adhoc.cpp adhoc.cpp.copied *.diff *.patch cryptopp.zip
ifneq ($(IS_DARWIN),0)
-$(RM) *.dSYM .DS_Store TestVectors/.DS_Store TestData/.DS_Store
endif
.PHONY: install
install:
$(MKDIR) -p $(PREFIX)/include/cryptopp $(PREFIX)/lib $(PREFIX)/bin
-$(CP) *.h $(PREFIX)/include/cryptopp
-$(CP) libcryptopp.a $(PREFIX)/lib
-$(CP) cryptest.exe $(PREFIX)/bin
ifeq ($(IS_DARWIN),0)
-$(CP) *.so $(PREFIX)/lib
else
-$(CP) *.dylib $(PREFIX)/lib
endif
.PHONY: install-strip
install-strip: install
-$(STRIP) -s $(PREFIX)/bin/cryptest.exe
ifeq ($(IS_DARWIN),0)
-$(STRIP) -s $(PREFIX)/lib/libcryptopp.so
else
-$(STRIP) -s $(PREFIX)/lib/libcryptopp.dylib
endif
.PHONY: uninstall remove
uninstall remove:
-$(RM) -rf $(PREFIX)/include/cryptopp
-$(RM) $(PREFIX)/lib/libcryptopp.a
-$(RM) $(PREFIX)/bin/cryptest.exe
ifeq ($(IS_DARWIN),0)
-$(RM) $(PREFIX)/lib/libcryptopp.so
else
-$(RM) $(PREFIX)/lib/libcryptopp.dylib
endif
DIST_FILES = *.h *.cpp *.asm License.txt Readme.txt Install.txt GNUmakefile GNUmakefile-cross \
Doxyfile cryptest_bds.bdsgroup cryptest_bds.bdsproj cryptest_bds.bpf cryptlib_bds.bdsproj \
cryptest.sln cryptest.dsp cryptest.dsw cryptest.vcproj dlltest.dsp dlltest.vcproj \
cryptlib.dsp cryptlib.vcproj cryptopp.rc TestVectors/*.txt TestData/*.dat
.PHONY: zip dist
zip dist: distclean
-zip -q -9 cryptopp.zip $(DIST_FILES)
libcryptopp.a: $(LIBOBJS)
$(AR) $(ARFLAGS) $@ $(LIBOBJS)
$(RANLIB) $@
libcryptopp.so: $(LIBOBJS)
$(CXX) -shared -o $@ $(CXXFLAGS) $(LIBOBJS)
libcryptopp.dylib: $(LIBOBJS)
$(CXX) -shared -dynamiclib -o $@ $(CXXFLAGS) $(LIBOBJS)
.PHONY: cryptest.exe
cryptest.exe: libcryptopp.a $(TESTOBJS)
$(CXX) -o $@ $(CXXFLAGS) $(TESTOBJS) ./libcryptopp.a $(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
.PHONY: system
system: ;
$(info CXX: $(CXX))
$(info CXXFLAGS: $(CXXFLAGS))
$(info GCC_COMPILER: $(GCC_COMPILER))
$(info CLANG_COMPILER: $(CLANG_COMPILER))
$(info INTEL_COMPILER: $(INTEL_COMPILER))
$(info SUN_COMPILER: $(SUN_COMPILER))
$(info IS_GCC_41: $(IS_GCC_41))
$(info IS_GCC_42: $(IS_GCC_42))
$(info IS_GCC_45: $(IS_GCC_45))
$(info IS_GCC_49: $(IS_GCC_49))
$(info UNALIGNED_ACCESS: $(UNALIGNED_ACCESS))
$(info UNAME: $(shell $(UNAME) -a))
$(info MACHINE: $(MACHINE))
$(info SYSTEM: $(SYSTEM))
$(info RELEASE: $(RELEASE))
$(info IS_X86: $(IS_X86))
$(info IS_X86_64: $(IS_X86_64))
$(info IS_DARWIN: $(IS_DARWIN))
$(info IS_LINUX: $(IS_LINUX))
$(info IS_MINGW: $(IS_MINGW))
$(info IS_CYGWIN: $(IS_CYGWIN))
$(info IS_OPENBSD: $(IS_OPENBSD))
$(info IS_SUN: $(IS_SUN))
$(info IS_FEDORA22_i686: $(IS_FEDORA22_i686))
%.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 $<
#################################################################
# Dependencies
# Do not build dependencies for some targets
NO_DEPS = system dist zip install install-strip uninstall remove clean distclean
ifeq ($(findstring $(MAKECMDGOALS),$(NO_DEPS)),)
# Do not build dependencies when multiarch is in effect
ifeq ($(MULTIARCH),0)
-include GNUmakefile.deps
endif
deps GNUmakefile.deps:
$(CXX) $(CXXFLAGS) -MM *.cpp > GNUmakefile.deps
endif # NO_DEPS