如何从example00 github编译cURLpp？

Question

我安装了cURLpp，并试图从他们的GitHub回购中编译example.00.cpp。但是，当我运行g++ example00.cpp -o example00时，我得到了以下输出：

/tmp/cc619KAL.o:在函数main': example00.cpp:(.text+0x26): undefined reference tocurlpp中:清除:清除()‘example00.cpp:(.text+0x32)：未定义的对curlpp::Easy::Easy()' example00.cpp:(.text+0x93): undefined reference tocurlpp的引用：：Easy：：perform()’example00.cpp:(.text+0x9f)：未定义的对curlpp::Easy::~Easy()' example00.cpp:(.text+0xae): undefined reference tocurlpp的引用：：清除:清理:对curlpp::Easy::~Easy()' example00.cpp:(.text+0x10c): undefined reference tocurlpp的未定义引用：：Cleanup：：对于curlpp::RuntimeError‘/tmp/cc619KAL.o:在函数curlpp::Option<std::string>::~Option()': example00.cpp:(.text._ZN6curlpp6OptionISsED2Ev[_ZN6curlpp6OptionISsED5Ev]+0x49): undefined reference tocurlpp::OptionBase::~OptionBase()’example00.cpp:(.text._ZN6curlpp6OptionISsED2Ev_ZN6curlpp6OptionISsED5Ev+0x6f)：中，对curlpp::OptionBase::~OptionBase()' /tmp/cc619KAL.o: In functioncurlpp::Option::Option(CURLoption，的未定义引用std::string &)：example00.cpp:(.text._ZN6curlpp6OptionISsEC2E10CURLoptionRKSs_ZN6curlpp6OptionISsEC5E10CURLoptionRKSs+0x21)：未定义引用curlpp::OptionBase::OptionBase(CURLoption)' example00.cpp:(.text._ZN6curlpp6OptionISsEC2E10CURLoptionRKSs[_ZN6curlpp6OptionISsEC5E10CURLoptionRKSs]+0x5c): undefined reference tocurlpp::OptionBase::~OptionBase()‘，/tmp/cc619KAL.o:(.rodata._ZTVN6curlpp11OptionTraitISsL10CURLoption10002EEE_ZTVN6curlpp11OptionTraitISsL10CURLoption10002EEE+0x20)：未定义引用curlpp::OptionBase::operator<(curlpp::OptionBase const&) const' /tmp/cc619KAL.o:(.rodata._ZTVN6curlpp6OptionISsEE[_ZTVN6curlpp6OptionISsEE]+0x20): undefined reference tocurlpp::OptionBase::operator<(curlpp::OptionBase const&) const’/tmp/cc619KAL.o:(.rodata._ZTIN6curlpp6OptionISsEE_ZTIN6curlpp6OptionISsEE+0x10)：未定义引用typeinfo for curlpp::OptionBase' /tmp/cc619KAL.o: In functioncurlpp::UnsetOption::~UnsetOption()'：example00.cpp：(.text._ZN6curlpp11UnsetOptionD2Ev_ZN6curlpp11UnsetOptionD5Ev+0x1f)：未定义引用curlpp::RuntimeError::~RuntimeError()' /tmp/cc619KAL.o: In functioncurlpp::Option::updateMeToOption(curlpp::OptionBase const&)'：example00.cpp:(.text._ZN6curlpp6OptionISsE16updateMeToOptionERKNS_10OptionBaseE_ZN6curlpp6OptionISsE16updateMeToOptionERKNS_10OptionBaseE+0x30)：未定义的对typeinfo for curlpp::OptionBase' example00.cpp:(.text._ZN6curlpp6OptionISsE16updateMeToOptionERKNS_10OptionBaseE[_ZN6curlpp6OptionISsE16updateMeToOptionERKNS_10OptionBaseE]+0x5d): undefined reference tocurlpp::UnsetOption::UnsetOption(char const*的引用‘/tmp/cc619KAL.o:函数curlpp::OptionTrait<std::string, (CURLoption)10002>::updateHandleToMe(curlpp::internal::CurlHandle*) const': example00.cpp:(.text._ZNK6curlpp11OptionTraitISsL10CURLoption10002EE16updateHandleToMeEPNS_8internal10CurlHandleE[_ZNK6curlpp11OptionTraitISsL10CURLoption10002EE16updateHandleToMeEPNS_8internal10CurlHandleE]+0x59): undefined reference tocurlpp::UnsetOption::UnsetOption(std::string const&)’/tmp/cc619KAL.o:在函数curlpp::Option<std::string>::getValue() const': example00.cpp:(.text._ZNK6curlpp6OptionISsE8getValueEv[_ZNK6curlpp6OptionISsE8getValueEv]+0x59): undefined reference tocurlpp::UnsetOption::UnsetOption(std中*string const&)‘/tmp/cc619KAL.o:在函数example00.cpp:(.text.ZN6curlpp8internal10CurlHandle6optionIPvEEv10CURLoptionTZN6curlpp8internal10CurlHandle6optionIPvEEv10CURLoptionT+0x45)：void curlpp::internal::CurlHandle::option<void*>(CURLoption, void*)': example00.cpp:(.text._ZN6curlpp8internal10CurlHandle6optionIPvEEv10CURLoptionT_[_ZN6curlpp8internal10CurlHandle6optionIPvEEv10CURLoptionT_]+0x2d): undefined reference tocurl_easy_setopt’对curlpp的curlpp::libcurlRuntimeAssert(char const*, CURLcode)' /tmp/cc619KAL.o:(.rodata._ZTIN6curlpp11UnsetOptionE[_ZTIN6curlpp11UnsetOptionE]+0x10): undefined reference to类型信息的未定义引用：：RuntimeError‘collect2: error: ld返回1退出状态

Answer 1

TheWatcher_，您需要同时链接curlpp和curl (将-lcurlpp和-lcurl添加到链接器行中)。为了更完整的一步一步，这里是你需要做的。

1. 从github克隆最新的卷轴。 git克隆https://github.com/jpbarrette/curlpp.git
2. 进入git目录并准备编译。 cd curlpp ./autogen.sh ./配置
3. 现在，让我们编译这个库以及所有示例。 制作

摘要中的：库构建后的，将cd放入示例目录，并为任何示例运行以下命令(从make中提取)(用所需的示例号替换00 )：

cd examples
g++ -DHAVE_CONFIG_H -I. -I../include/curlpp  -I../include   -g  -W -Wall -Werror    -I/usr/local/include -MT example00.o -MD -MP -MF .deps/example00.Tpo -c -o example00.o example00.cpp
mv -f .deps/example00.Tpo .deps/example00.Po
/bin/sh ../libtool --silent  --tag=CXX   --mode=link g++  -g  -W -Wall -Werror -I/usr/local/include -L../src/curlpp/ -lcurlpp -static -o example00 example00.o -lstdc++ -lcurl