c++ - 无法链接 ipopt 库(MacOS Mojave 上的 C++)

Question

我想在 MacOS Mojave 上的 C++ 软件中使用 ipopt 和 cppad。

编译停止如下所示。

为什么编译成功了，链接器还是失败。

Can somebody help?

我在 Xcode 和 CLion 上试过这个。两个 IDE 都给我同样的错误。我还经常使用 brew 重新安装 cppad 和 ipconfig。

include_paths 似乎有效。我可以按如下方式包含 header :

#include <cppad/cppad.hpp>
#include <cppad/ipopt/solve.hpp>

Undefined symbols for architecture x86_64:
  "Ipopt::IpoptApplication::IpoptApplication(bool, bool)", referenced from:
      void CppAD::ipopt::solve<CppAD::vector<double>, FG_eval>(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, CppAD::vector<double> const&, CppAD::vector<double> const&, CppAD::vector<double> const&, CppAD::vector<double> const&, CppAD::vector<double> const&, FG_eval&, CppAD::ipopt::solve_result<CppAD::vector<double> >&) in MPC.cpp.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

更新:更改为-v选项后CMakeOutput.log的前半部分内容:

The system is: Darwin - 18.6.0 - x86_64
Compiling the C compiler identification source file "CMakeCCompilerId.c" succeeded.
Compiler: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/cc 
Build flags: 
Id flags:  

The output was:
0


Compilation of the C compiler identification source "CMakeCCompilerId.c" produced "a.out"

The C compiler identification is AppleClang, found in "/Users/peter/CLionProjects/PilotSwoppz/cmake-build-debug/CMakeFiles/3.14.3/CompilerIdC/a.out"

Compiling the CXX compiler identification source file "CMakeCXXCompilerId.cpp" succeeded.
Compiler: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/c++ 
Build flags: 
Id flags:  

The output was:
0


Compilation of the CXX compiler identification source "CMakeCXXCompilerId.cpp" produced "a.out"

The CXX compiler identification is AppleClang, found in "/Users/peter/CLionProjects/PilotSwoppz/cmake-build-debug/CMakeFiles/3.14.3/CompilerIdCXX/a.out"

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Answer 1

我让它按如下方式工作:

问题出现了，因为我没有在 CMakeLists.txt 中正确包含 ipopt 库。我通过以下 Make 配置解决了这个问题:

cmake_minimum_required(VERSION 3.14)
project(ProjectName)

set(CMAKE_CXX_STANDARD 17)

include_directories(/usr/local/include)
link_directories(/usr/local/lib)

set(SOURCE_FILES unmanned.cpp mpc.cpp)

add_executable(ProjectName ${SOURCE_FILES})
target_link_libraries(ProjectName ipopt)