在 Clion IDE 中使用 Crypto++
Using Crypto++ in Clion IDE
我在新安装的 Clion IDE 中编译正确的应用程序时遇到一些问题。早些时候我使用 Code::Blocks 并且所有编译成功。项目使用 pthread 和 Crypto++ 库。我已经在我的 Ubuntu 15.04 上安装了它们。并使用 -pthread 标志编译 Clion 项目。但它找不到 crypto++ 库。如何解决这个问题？
我的 CMake 文件：
cmake_minimum_required(VERSION 3.3)
project(Chat)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -pthread")
set(SOURCE_FILES
include/Chat.h
include/Checker.h
include/Client.h
include/DataTransferingInterface.h
include/EncryptorDES.h
include/EncryptorRSA.h
include/Logger.h
include/OwnerClientInterface.h
include/OwnerServerInterface.h
include/Parser.h
include/SecureChat.h
include/Server.h
src/Chat.cpp
src/Checker.cpp
src/Client.cpp
src/DataTransferingInterface.cpp
src/EncryptorDES.cpp
src/EncryptorRSA.cpp
src/Logger.cpp
src/OwnerClientInterface.cpp
src/OwnerServerInterface.cpp
src/Parser.cpp
src/SecureChat.cpp
src/Server.cpp
main.cpp)
add_executable(Chat ${SOURCE_FILES})
编译错误：
/usr/include/cryptopp/integer.h:26: undefined reference to `vtable for CryptoPP::Integer'
CMakeFiles/Chat.dir/src/EncryptorRSA.cpp.o: In function `CryptoPP::AbstractRing<CryptoPP::Integer>::MultiplicativeGroupT::~MultiplicativeGroupT()':
/usr/include/cryptopp/algebra.h:70: undefined reference to `vtable for CryptoPP::AbstractRing<CryptoPP::Integer>::MultiplicativeGroupT'
/usr/include/cryptopp/algebra.h:70: undefined reference to `CryptoPP::AbstractGroup<CryptoPP::Integer>::~AbstractGroup()'
CMakeFiles/Chat.dir/src/EncryptorRSA.cpp.o: In function `CryptoPP::FileStore::~FileStore()':
/usr/include/cryptopp/files.h:14: undefined reference to `vtable for CryptoPP::FileStore'
/usr/include/cryptopp/files.h:14: undefined reference to `vtable for CryptoPP::FileStore'
CMakeFiles/Chat.dir/src/EncryptorRSA.cpp.o: In function `CryptoPP::FileSink::~FileSink()':
/usr/include/cryptopp/files.h:77: undefined reference to `vtable for CryptoPP::FileSink'
/usr/include/cryptopp/files.h:77: undefined reference to `vtable for CryptoPP::FileSink'
CMakeFiles/Chat.dir/src/EncryptorRSA.cpp.o: In function `CryptoPP::HMAC_Base::~HMAC_Base()':
/usr/include/cryptopp/hmac.h:12: undefined reference to `vtable for CryptoPP::HMAC_Base'
/usr/include/cryptopp/hmac.h:12: undefined reference to `vtable for CryptoPP::HMAC_Base'
CMakeFiles/Chat.dir/src/EncryptorRSA.cpp.o: In function `CryptoPP::AlgorithmParametersTemplate<char const*>::AssignValue(char const*, std::type_info const&, void*) const':
/usr/include/cryptopp/algparam.h:313: undefined reference to `CryptoPP::g_pAssignIntToInteger'
/usr/include/cryptopp/algparam.h:313: undefined reference to `CryptoPP::g_pAssignIntToInteger'
CMakeFiles/Chat.dir/src/EncryptorRSA.cpp.o: In function `CryptoPP::DL_EncryptorBase<CryptoPP::ECPPoint>::Encrypt(CryptoPP::RandomNumberGenerator&, unsigned char const*, unsigned long, unsigned char*, CryptoPP::NameValuePairs const&) const':
/usr/include/cryptopp/integer.h:118: undefined reference to `CryptoPP::Integer::One()'
/usr/include/cryptopp/integer.h:118: undefined reference to `CryptoPP::Integer::Zero()'
CMakeFiles/Chat.dir/src/EncryptorRSA.cpp.o: In function `CryptoPP::DL_EncryptorBase<CryptoPP::ECPPoint>::Encrypt(CryptoPP::RandomNumberGenerator&, unsigned char const*, unsigned long, unsigned char*, CryptoPP::NameValuePairs const&) const':
/usr/include/cryptopp/pubkey.h:1228: undefined reference to `CryptoPP::Integer::One()'
/usr/include/cryptopp/pubkey.h:1228: undefined reference to `CryptoPP::Integer::Integer(CryptoPP::RandomNumberGenerator&, CryptoPP::Integer const&, CryptoPP::Integer const&, CryptoPP::Integer::RandomNumberType, CryptoPP::Integer const&, CryptoPP::Integer const&)'
CMakeFiles/Chat.dir/src/EncryptorRSA.cpp.o: In function `CryptoPP::SourceTemplate<CryptoPP::FileStore>::Pump2(unsigned long long&, bool)':
/usr/include/cryptopp/filters.h:763: undefined reference to `CryptoPP::DEFAULT_CHANNEL'
/usr/include/cryptopp/filters.h:763: undefined reference to `CryptoPP::FileStore::TransferTo2(CryptoPP::BufferedTransformation&, unsigned long long&, std::string const&, bool)'
CMakeFiles/Chat.dir/src/EncryptorRSA.cpp.o: In function `CryptoPP::SourceTemplate<CryptoPP::FileStore>::PumpMessages2(unsigned int&, bool)':
/usr/include/cryptopp/filters.h:765: undefined reference to `CryptoPP::DEFAULT_CHANNEL'
/usr/include/cryptopp/filters.h:765: undefined reference to `CryptoPP::BufferedTransformation::TransferMessagesTo2(CryptoPP::BufferedTransformation&, unsigned int&, std::string const&, bool)'
CMakeFiles/Chat.dir/src/EncryptorRSA.cpp.o: In function `CryptoPP::SourceTemplate<CryptoPP::FileStore>::PumpAll2(bool)':
/usr/include/cryptopp/filters.h:767: undefined reference to `CryptoPP::DEFAULT_CHANNEL'
/usr/include/cryptopp/filters.h:767: undefined reference to `CryptoPP::BufferedTransformation::TransferAllTo2(CryptoPP::BufferedTransformation&, std::string const&, bool)'
CMakeFiles/Chat.dir/src/EncryptorRSA.cpp.o: In function `CryptoPP::SourceTemplate<CryptoPP::FileStore>::SourceExhausted() const':
/usr/include/cryptopp/filters.h:769: undefined reference to `CryptoPP::BufferedTransformation::AnyRetrievable() const'
/usr/include/cryptopp/filters.h:769: undefined reference to `CryptoPP::BufferedTransformation::AnyMessages() const'
CMakeFiles/Chat.dir/src/EncryptorRSA.cpp.o: In function `CryptoPP::DL_EncryptionAlgorithm_Xor<CryptoPP::HMAC<CryptoPP::SHA1>, false>::SymmetricEncrypt(CryptoPP::RandomNumberGenerator&, unsigned char const*, unsigned char const*, unsigned long, unsigned char*, CryptoPP::NameValuePairs const&) const':
/usr/include/cryptopp/gfpcrypt.h:439: undefined reference to `CryptoPP::xorbuf(unsigned char*, unsigned char const*, unsigned char const*, unsigned long)'
/usr/include/cryptopp/gfpcrypt.h:441: undefined reference to `CryptoPP::HMAC_Base::Update(unsigned char const*, unsigned long)'
/usr/include/cryptopp/gfpcrypt.h:442: undefined reference to `CryptoPP::HMAC_Base::Update(unsigned char const*, unsigned long)'
CMakeFiles/Chat.dir/src/EncryptorRSA.cpp.o: In function `CryptoPP::DL_EncryptionAlgorithm_Xor<CryptoPP::HMAC<CryptoPP::SHA1>, false>::SymmetricDecrypt(unsigned char const*, unsigned char const*, unsigned long, unsigned char*, CryptoPP::NameValuePairs const&) const':
/usr/include/cryptopp/gfpcrypt.h:470: undefined reference to `CryptoPP::HMAC_Base::Update(unsigned char const*, unsigned long)'
/usr/include/cryptopp/gfpcrypt.h:471: undefined reference to `CryptoPP::HMAC_Base::Update(unsigned char const*, unsigned long)'
/usr/include/cryptopp/gfpcrypt.h:481: undefined reference to `CryptoPP::xorbuf(unsigned char*, unsigned char const*, unsigned char const*, unsigned long)'
CMakeFiles/Chat.dir/src/EncryptorRSA.cpp.o: In function `CryptoPP::DL_KeyAgreementAlgorithm_DH<CryptoPP::ECPPoint, CryptoPP::EnumToType<CryptoPP::CofactorMultiplicationOption, 0> >::AgreeWithEphemeralPrivateKey(CryptoPP::DL_GroupParameters<CryptoPP::ECPPoint> const&, CryptoPP::DL_FixedBasePrecomputation<CryptoPP::ECPPoint> const&, CryptoPP::Integer const&) const':
/usr/include/cryptopp/pubkey.h:1445: undefined reference to `CryptoPP::Integer::Integer(CryptoPP::Integer const&)'
CMakeFiles/Chat.dir/src/EncryptorRSA.cpp.o: In function `CryptoPP::DL_KeyAgreementAlgorithm_DH<CryptoPP::ECPPoint, CryptoPP::EnumToType<CryptoPP::CofactorMultiplicationOption, 0> >::AgreeWithStaticPrivateKey(CryptoPP::DL_GroupParameters<CryptoPP::ECPPoint> const&, CryptoPP::ECPPoint const&, bool, CryptoPP::Integer const&) const':
/usr/include/cryptopp/pubkey.h:1473: undefined reference to `CryptoPP::Integer::Integer(CryptoPP::Integer const&)'
/usr/include/cryptopp/pubkey.h:1473: undefined reference to `CryptoPP::Integer::Integer(CryptoPP::Integer const&)'
CMakeFiles/Chat.dir/src/EncryptorRSA.cpp.o: In function `CryptoPP::HMAC<CryptoPP::SHA1>::HMAC(unsigned char const*, unsigned long)':
/usr/include/cryptopp/hmac.h:48: undefined reference to `CryptoPP::g_nullNameValuePairs'
/usr/include/cryptopp/hmac.h:48: undefined reference to `CryptoPP::SimpleKeyingInterface::SetKey(unsigned char const*, unsigned long, CryptoPP::NameValuePairs const&)'
CMakeFiles/Chat.dir/src/EncryptorRSA.cpp.o: In function `CryptoPP::P1363_KDF2<CryptoPP::SHA1>::DeriveKey(unsigned char*, unsigned long, unsigned char const*, unsigned long, unsigned char const*, unsigned long)':
/usr/include/cryptopp/pubkey.h:506: undefined reference to `CryptoPP::P1363_MGF1KDF2_Common(CryptoPP::HashTransformation&, unsigned char*, unsigned long, unsigned char const*, unsigned long, unsigned char const*, unsigned long, bool, unsigned int)'
CMakeFiles/Chat.dir/src/EncryptorRSA.cpp.o: In function `CryptoPP::IteratedHashWithStaticTransform<unsigned int, CryptoPP::EnumToType<CryptoPP::ByteOrder, 1>, 64u, 20u, CryptoPP::SHA1, 0u, false>::Init()':
/usr/include/cryptopp/iterhash.h:90: undefined reference to `CryptoPP::SHA1::InitState(unsigned int*)'
CMakeFiles/Chat.dir/src/EncryptorRSA.cpp.o:(.rodata._ZTIN8CryptoPP16IteratedHashBaseIjNS_18HashTransformationEEE[_ZTIN8CryptoPP16IteratedHashBaseIjNS_18HashTransformationEEE]+0x10): undefined reference to `typeinfo for CryptoPP::HashTransformation'
CMakeFiles/Chat.dir/src/EncryptorRSA.cpp.o:(.rodata._ZTIN8CryptoPP25SimpleKeyingInterfaceImplINS_9HMAC_BaseENS_4HMACINS_4SHA1EEEEE[_ZTIN8CryptoPP25SimpleKeyingInterfaceImplINS_9HMAC_BaseENS_4HMACINS_4SHA1EEEEE]+0x10): undefined reference to `typeinfo for CryptoPP::HMAC_Base'
CMakeFiles/Chat.dir/src/EncryptorRSA.cpp.o: In function `CryptoPP::HashTransformation::HashTransformation(CryptoPP::HashTransformation const&)':
/usr/include/cryptopp/cryptlib.h:531: undefined reference to `vtable for CryptoPP::HashTransformation'
CMakeFiles/Chat.dir/src/EncryptorRSA.cpp.o: In function `CryptoPP::IteratedHashWithStaticTransform<unsigned int, CryptoPP::EnumToType<CryptoPP::ByteOrder, 1>, 64u, 20u, CryptoPP::SHA1, 0u, false>::HashEndianCorrectedBlock(unsigned int const*)':
/usr/include/cryptopp/iterhash.h:89: undefined reference to `CryptoPP::SHA1::Transform(unsigned int*, unsigned int const*)'
collect2: error: ld returned 1 exit status
CMakeFiles/Chat.dir/build.make:406: recipe for target 'Chat' failed
make[2]: *** [Chat] Error 1
CMakeFiles/Makefile2:67: recipe for target 'CMakeFiles/Chat.dir/all' failed
make[1]: *** [CMakeFiles/Chat.dir/all] Error 2
Makefile:83: recipe for target 'all' failed
make: *** [all] Error 2
我在 CMakeLists.txt add_executable 之后执行了以下操作来解决问题：
target_link_libraries(Chat /usr/lib/libcrypto++.a)
我在新安装的 Clion IDE 中编译正确的应用程序时遇到一些问题。早些时候我使用 Code::Blocks 并且所有编译成功。项目使用 pthread 和 Crypto++ 库。我已经在我的 Ubuntu 15.04 上安装了它们。并使用 -pthread 标志编译 Clion 项目。但它找不到 crypto++ 库。如何解决这个问题？
我的 CMake 文件：
cmake_minimum_required(VERSION 3.3)
project(Chat)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -pthread")
set(SOURCE_FILES
include/Chat.h
include/Checker.h
include/Client.h
include/DataTransferingInterface.h
include/EncryptorDES.h
include/EncryptorRSA.h
include/Logger.h
include/OwnerClientInterface.h
include/OwnerServerInterface.h
include/Parser.h
include/SecureChat.h
include/Server.h
src/Chat.cpp
src/Checker.cpp
src/Client.cpp
src/DataTransferingInterface.cpp
src/EncryptorDES.cpp
src/EncryptorRSA.cpp
src/Logger.cpp
src/OwnerClientInterface.cpp
src/OwnerServerInterface.cpp
src/Parser.cpp
src/SecureChat.cpp
src/Server.cpp
main.cpp)
add_executable(Chat ${SOURCE_FILES})
编译错误：
/usr/include/cryptopp/integer.h:26: undefined reference to `vtable for CryptoPP::Integer'
CMakeFiles/Chat.dir/src/EncryptorRSA.cpp.o: In function `CryptoPP::AbstractRing<CryptoPP::Integer>::MultiplicativeGroupT::~MultiplicativeGroupT()':
/usr/include/cryptopp/algebra.h:70: undefined reference to `vtable for CryptoPP::AbstractRing<CryptoPP::Integer>::MultiplicativeGroupT'
/usr/include/cryptopp/algebra.h:70: undefined reference to `CryptoPP::AbstractGroup<CryptoPP::Integer>::~AbstractGroup()'
CMakeFiles/Chat.dir/src/EncryptorRSA.cpp.o: In function `CryptoPP::FileStore::~FileStore()':
/usr/include/cryptopp/files.h:14: undefined reference to `vtable for CryptoPP::FileStore'
/usr/include/cryptopp/files.h:14: undefined reference to `vtable for CryptoPP::FileStore'
CMakeFiles/Chat.dir/src/EncryptorRSA.cpp.o: In function `CryptoPP::FileSink::~FileSink()':
/usr/include/cryptopp/files.h:77: undefined reference to `vtable for CryptoPP::FileSink'
/usr/include/cryptopp/files.h:77: undefined reference to `vtable for CryptoPP::FileSink'
CMakeFiles/Chat.dir/src/EncryptorRSA.cpp.o: In function `CryptoPP::HMAC_Base::~HMAC_Base()':
/usr/include/cryptopp/hmac.h:12: undefined reference to `vtable for CryptoPP::HMAC_Base'
/usr/include/cryptopp/hmac.h:12: undefined reference to `vtable for CryptoPP::HMAC_Base'
CMakeFiles/Chat.dir/src/EncryptorRSA.cpp.o: In function `CryptoPP::AlgorithmParametersTemplate<char const*>::AssignValue(char const*, std::type_info const&, void*) const':
/usr/include/cryptopp/algparam.h:313: undefined reference to `CryptoPP::g_pAssignIntToInteger'
/usr/include/cryptopp/algparam.h:313: undefined reference to `CryptoPP::g_pAssignIntToInteger'
CMakeFiles/Chat.dir/src/EncryptorRSA.cpp.o: In function `CryptoPP::DL_EncryptorBase<CryptoPP::ECPPoint>::Encrypt(CryptoPP::RandomNumberGenerator&, unsigned char const*, unsigned long, unsigned char*, CryptoPP::NameValuePairs const&) const':
/usr/include/cryptopp/integer.h:118: undefined reference to `CryptoPP::Integer::One()'
/usr/include/cryptopp/integer.h:118: undefined reference to `CryptoPP::Integer::Zero()'
CMakeFiles/Chat.dir/src/EncryptorRSA.cpp.o: In function `CryptoPP::DL_EncryptorBase<CryptoPP::ECPPoint>::Encrypt(CryptoPP::RandomNumberGenerator&, unsigned char const*, unsigned long, unsigned char*, CryptoPP::NameValuePairs const&) const':
/usr/include/cryptopp/pubkey.h:1228: undefined reference to `CryptoPP::Integer::One()'
/usr/include/cryptopp/pubkey.h:1228: undefined reference to `CryptoPP::Integer::Integer(CryptoPP::RandomNumberGenerator&, CryptoPP::Integer const&, CryptoPP::Integer const&, CryptoPP::Integer::RandomNumberType, CryptoPP::Integer const&, CryptoPP::Integer const&)'
CMakeFiles/Chat.dir/src/EncryptorRSA.cpp.o: In function `CryptoPP::SourceTemplate<CryptoPP::FileStore>::Pump2(unsigned long long&, bool)':
/usr/include/cryptopp/filters.h:763: undefined reference to `CryptoPP::DEFAULT_CHANNEL'
/usr/include/cryptopp/filters.h:763: undefined reference to `CryptoPP::FileStore::TransferTo2(CryptoPP::BufferedTransformation&, unsigned long long&, std::string const&, bool)'
CMakeFiles/Chat.dir/src/EncryptorRSA.cpp.o: In function `CryptoPP::SourceTemplate<CryptoPP::FileStore>::PumpMessages2(unsigned int&, bool)':
/usr/include/cryptopp/filters.h:765: undefined reference to `CryptoPP::DEFAULT_CHANNEL'
/usr/include/cryptopp/filters.h:765: undefined reference to `CryptoPP::BufferedTransformation::TransferMessagesTo2(CryptoPP::BufferedTransformation&, unsigned int&, std::string const&, bool)'
CMakeFiles/Chat.dir/src/EncryptorRSA.cpp.o: In function `CryptoPP::SourceTemplate<CryptoPP::FileStore>::PumpAll2(bool)':
/usr/include/cryptopp/filters.h:767: undefined reference to `CryptoPP::DEFAULT_CHANNEL'
/usr/include/cryptopp/filters.h:767: undefined reference to `CryptoPP::BufferedTransformation::TransferAllTo2(CryptoPP::BufferedTransformation&, std::string const&, bool)'
CMakeFiles/Chat.dir/src/EncryptorRSA.cpp.o: In function `CryptoPP::SourceTemplate<CryptoPP::FileStore>::SourceExhausted() const':
/usr/include/cryptopp/filters.h:769: undefined reference to `CryptoPP::BufferedTransformation::AnyRetrievable() const'
/usr/include/cryptopp/filters.h:769: undefined reference to `CryptoPP::BufferedTransformation::AnyMessages() const'
CMakeFiles/Chat.dir/src/EncryptorRSA.cpp.o: In function `CryptoPP::DL_EncryptionAlgorithm_Xor<CryptoPP::HMAC<CryptoPP::SHA1>, false>::SymmetricEncrypt(CryptoPP::RandomNumberGenerator&, unsigned char const*, unsigned char const*, unsigned long, unsigned char*, CryptoPP::NameValuePairs const&) const':
/usr/include/cryptopp/gfpcrypt.h:439: undefined reference to `CryptoPP::xorbuf(unsigned char*, unsigned char const*, unsigned char const*, unsigned long)'
/usr/include/cryptopp/gfpcrypt.h:441: undefined reference to `CryptoPP::HMAC_Base::Update(unsigned char const*, unsigned long)'
/usr/include/cryptopp/gfpcrypt.h:442: undefined reference to `CryptoPP::HMAC_Base::Update(unsigned char const*, unsigned long)'
CMakeFiles/Chat.dir/src/EncryptorRSA.cpp.o: In function `CryptoPP::DL_EncryptionAlgorithm_Xor<CryptoPP::HMAC<CryptoPP::SHA1>, false>::SymmetricDecrypt(unsigned char const*, unsigned char const*, unsigned long, unsigned char*, CryptoPP::NameValuePairs const&) const':
/usr/include/cryptopp/gfpcrypt.h:470: undefined reference to `CryptoPP::HMAC_Base::Update(unsigned char const*, unsigned long)'
/usr/include/cryptopp/gfpcrypt.h:471: undefined reference to `CryptoPP::HMAC_Base::Update(unsigned char const*, unsigned long)'
/usr/include/cryptopp/gfpcrypt.h:481: undefined reference to `CryptoPP::xorbuf(unsigned char*, unsigned char const*, unsigned char const*, unsigned long)'
CMakeFiles/Chat.dir/src/EncryptorRSA.cpp.o: In function `CryptoPP::DL_KeyAgreementAlgorithm_DH<CryptoPP::ECPPoint, CryptoPP::EnumToType<CryptoPP::CofactorMultiplicationOption, 0> >::AgreeWithEphemeralPrivateKey(CryptoPP::DL_GroupParameters<CryptoPP::ECPPoint> const&, CryptoPP::DL_FixedBasePrecomputation<CryptoPP::ECPPoint> const&, CryptoPP::Integer const&) const':
/usr/include/cryptopp/pubkey.h:1445: undefined reference to `CryptoPP::Integer::Integer(CryptoPP::Integer const&)'
CMakeFiles/Chat.dir/src/EncryptorRSA.cpp.o: In function `CryptoPP::DL_KeyAgreementAlgorithm_DH<CryptoPP::ECPPoint, CryptoPP::EnumToType<CryptoPP::CofactorMultiplicationOption, 0> >::AgreeWithStaticPrivateKey(CryptoPP::DL_GroupParameters<CryptoPP::ECPPoint> const&, CryptoPP::ECPPoint const&, bool, CryptoPP::Integer const&) const':
/usr/include/cryptopp/pubkey.h:1473: undefined reference to `CryptoPP::Integer::Integer(CryptoPP::Integer const&)'
/usr/include/cryptopp/pubkey.h:1473: undefined reference to `CryptoPP::Integer::Integer(CryptoPP::Integer const&)'
CMakeFiles/Chat.dir/src/EncryptorRSA.cpp.o: In function `CryptoPP::HMAC<CryptoPP::SHA1>::HMAC(unsigned char const*, unsigned long)':
/usr/include/cryptopp/hmac.h:48: undefined reference to `CryptoPP::g_nullNameValuePairs'
/usr/include/cryptopp/hmac.h:48: undefined reference to `CryptoPP::SimpleKeyingInterface::SetKey(unsigned char const*, unsigned long, CryptoPP::NameValuePairs const&)'
CMakeFiles/Chat.dir/src/EncryptorRSA.cpp.o: In function `CryptoPP::P1363_KDF2<CryptoPP::SHA1>::DeriveKey(unsigned char*, unsigned long, unsigned char const*, unsigned long, unsigned char const*, unsigned long)':
/usr/include/cryptopp/pubkey.h:506: undefined reference to `CryptoPP::P1363_MGF1KDF2_Common(CryptoPP::HashTransformation&, unsigned char*, unsigned long, unsigned char const*, unsigned long, unsigned char const*, unsigned long, bool, unsigned int)'
CMakeFiles/Chat.dir/src/EncryptorRSA.cpp.o: In function `CryptoPP::IteratedHashWithStaticTransform<unsigned int, CryptoPP::EnumToType<CryptoPP::ByteOrder, 1>, 64u, 20u, CryptoPP::SHA1, 0u, false>::Init()':
/usr/include/cryptopp/iterhash.h:90: undefined reference to `CryptoPP::SHA1::InitState(unsigned int*)'
CMakeFiles/Chat.dir/src/EncryptorRSA.cpp.o:(.rodata._ZTIN8CryptoPP16IteratedHashBaseIjNS_18HashTransformationEEE[_ZTIN8CryptoPP16IteratedHashBaseIjNS_18HashTransformationEEE]+0x10): undefined reference to `typeinfo for CryptoPP::HashTransformation'
CMakeFiles/Chat.dir/src/EncryptorRSA.cpp.o:(.rodata._ZTIN8CryptoPP25SimpleKeyingInterfaceImplINS_9HMAC_BaseENS_4HMACINS_4SHA1EEEEE[_ZTIN8CryptoPP25SimpleKeyingInterfaceImplINS_9HMAC_BaseENS_4HMACINS_4SHA1EEEEE]+0x10): undefined reference to `typeinfo for CryptoPP::HMAC_Base'
CMakeFiles/Chat.dir/src/EncryptorRSA.cpp.o: In function `CryptoPP::HashTransformation::HashTransformation(CryptoPP::HashTransformation const&)':
/usr/include/cryptopp/cryptlib.h:531: undefined reference to `vtable for CryptoPP::HashTransformation'
CMakeFiles/Chat.dir/src/EncryptorRSA.cpp.o: In function `CryptoPP::IteratedHashWithStaticTransform<unsigned int, CryptoPP::EnumToType<CryptoPP::ByteOrder, 1>, 64u, 20u, CryptoPP::SHA1, 0u, false>::HashEndianCorrectedBlock(unsigned int const*)':
/usr/include/cryptopp/iterhash.h:89: undefined reference to `CryptoPP::SHA1::Transform(unsigned int*, unsigned int const*)'
collect2: error: ld returned 1 exit status
CMakeFiles/Chat.dir/build.make:406: recipe for target 'Chat' failed
make[2]: *** [Chat] Error 1
CMakeFiles/Makefile2:67: recipe for target 'CMakeFiles/Chat.dir/all' failed
make[1]: *** [CMakeFiles/Chat.dir/all] Error 2
Makefile:83: recipe for target 'all' failed
make: *** [all] Error 2
我在 CMakeLists.txt add_executable 之后执行了以下操作来解决问题：
target_link_libraries(Chat /usr/lib/libcrypto++.a)