C ++框架测试应用程序的链接器错误

Question

我想使用AA+ astronomy class framework，我只想让示例应用运行（它包含在framework zip file AATest.cpp中）

我打开了Xcode，为C ++应用程序创建了一个新项目，然后将AA+.h和stdafx.h文件添加到项目中，因为它们是包含的。然后，当我构建项目时，我收到很多链接器错误，因为它似乎无法找到与某些示例应用程序代码相关联的符号。

我已经尝试将AA+.h和stdafx.h文件的路径添加到Xcode中的Build设置中的库和标题搜索路径，但这并未改变任何内容，错误仍然存​​在那里。

我做错了什么？这是我第一次在Xcode中使用C ++。我是否必须先将AA +框架构建为静态库，还是以这种方式包含它？

通过Xcode编译：

Ld /Users/me/Library/Developer/Xcode/DerivedData/AAPlus-bzgonjwgqlpgescueekcoobljdyf/Build/Products/Debug/AAPlus normal x86_64
    cd "/Users/me/Downloads/aaplus astronomy c++/Example/AAPlus"
    setenv MACOSX_DEPLOYMENT_TARGET 10.7
    /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang++ -arch x86_64 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.8.sdk -L/Users/me/Library/Developer/Xcode/DerivedData/AAPlus-bzgonjwgqlpgescueekcoobljdyf/Build/Products/Debug -F/Users/me/Library/Developer/Xcode/DerivedData/AAPlus-bzgonjwgqlpgescueekcoobljdyf/Build/Products/Debug -filelist /Users/me/Library/Developer/Xcode/DerivedData/AAPlus-bzgonjwgqlpgescueekcoobljdyf/Build/Intermediates/AAPlus.build/Debug/AAPlus.build/Objects-normal/x86_64/AAPlus.LinkFileList -mmacosx-version-min=10.7 -stdlib=libc++ -o /Users/me/Library/Developer/Xcode/DerivedData/AAPlus-bzgonjwgqlpgescueekcoobljdyf/Build/Products/Debug/AAPlus

错误：

Undefined symbols for architecture x86_64:
  "CAANutation::TrueObliquityOfEcliptic(double)", referenced from:
      GetSolarRaDecByJulian(double, double&, double&) in main.o
      GetLunarRaDecByJulian(double, double&, double&) in main.o
  "CAADynamicalTime::DeltaT(double)", referenced from:
      GetSolarRaDecByJulian(double, double&, double&) in main.o
  "CAARiseTransitSet::Calculate(double, double, double, double, double, double, double, double, double, double)", referenced from:
      GetSunRiseTransitSet(double, double, double) in main.o
      GetMoonRiseTransitSet(double, double, double) in main.o
  "CAAMoonIlluminatedFraction::PhaseAngle(double, double, double)", referenced from:
      GetMoonIllumination(double, double&, double&, double&) in main.o
  "CAAMoonIlluminatedFraction::PositionAngle(double, double, double, double)", referenced from:
      GetMoonIllumination(double, double&, double&, double&) in main.o
  "CAAMoonIlluminatedFraction::IlluminatedFraction(double)", referenced from:
      GetMoonIllumination(double, double&, double&, double&) in main.o
  "CAAMoonIlluminatedFraction::GeocentricElongation(double, double, double, double)", referenced from:
      GetMoonIllumination(double, double&, double&, double&) in main.o
  "CAACoordinateTransformation::Ecliptic2Equatorial(double, double, double)", referenced from:
      GetSolarRaDecByJulian(double, double&, double&) in main.o
      GetLunarRaDecByJulian(double, double&, double&) in main.o
  "CAASun::ApparentEclipticLatitude(double)", referenced from:
      GetSolarRaDecByJulian(double, double&, double&) in main.o
  "CAASun::ApparentEclipticLongitude(double)", referenced from:
      GetSolarRaDecByJulian(double, double&, double&) in main.o
  "CAADate::CAADate(double, bool)", referenced from:
      PrintTime(double, char const*) in main.o
  "CAADate::CAADate(long, long, double, bool)", referenced from:
      PrintSunAndMoonInfo(int, int, int, double, double) in main.o
  "CAAMoon::EclipticLatitude(double)", referenced from:
      GetLunarRaDecByJulian(double, double&, double&) in main.o
  "CAAMoon::EclipticLongitude(double)", referenced from:
      GetLunarRaDecByJulian(double, double&, double&) in main.o
  "CAADate::Get(long&, long&, long&, long&, long&, double&) const", referenced from:
      PrintTime(double, char const*) in main.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Answer 1

的XCode

您可以在XCode中执行以下操作：

1. 创建新项目AATest
2. 将包含框架代码的aaplus/文件夹复制到项目文件夹
3. 在您的XCode项目中，按住 control 并点击来源
4. 选择添加＆gt;现有文件......
5. 选择aaplus/文件夹并将添加到您的项目
6. 生成。

可执行文件位于build/Debug/AATest。

替代

由于项目包含文件CMakeLists.txt，您可以使用cmake构建程序。在框架文件夹中，在终端上运行以下命令：

mkdir build/
cd build/
cmake ..
make