Question

我目前正在尝试在我的Debian 9.1系统上安装OSVR-Core。我安装了所有先决条件并遵循this教程。现在我坚持做项目。我创建了一个build-directory并尝试运行

cmake -DCMAKE_PREFIX_PATH="/usr/local/stow/libfunctionality" ~/src/OSVR-Core

但是我收到错误，我的二进制目录应该与我的源目录不同。我的源目录（带有make-files）应该是〜/ src / OSVR-Core，因为我在〜/ src / OSVR-Core / build中，我认为这就足够了。

如何（以及在何处）更改二进制目录的位置？我尝试了命令行选项-D CMAKE_BINARY_DIR= "path/to/OSVR-Core/build但是没有用。我在网上看到，你不应该手动设置二进制目录，而是创建/计算它。

这是CMakeError.log文件：

    Determining if the pthread_create exist failed with the following output:
Change Dir: /home/lenala/src/OSVR-Core/CMakeFiles/CMakeTmp

Run Build Command:"/usr/bin/make" "cmTC_42e59/fast"
/usr/bin/make -f CMakeFiles/cmTC_42e59.dir/build.make CMakeFiles/cmTC_42e59.dir/build
make[1]: Entering directory '/home/lenala/src/OSVR-Core/CMakeFiles/CMakeTmp'
Building C object CMakeFiles/cmTC_42e59.dir/CheckSymbolExists.c.o
/usr/bin/cc     -o CMakeFiles/cmTC_42e59.dir/CheckSymbolExists.c.o   -c /home/lenala/src/OSVR-Core/CMakeFiles/CMakeTmp/CheckSymbolExists.c
Linking C executable cmTC_42e59
/usr/bin/cmake -E cmake_link_script CMakeFiles/cmTC_42e59.dir/link.txt --verbose=1
/usr/bin/cc       CMakeFiles/cmTC_42e59.dir/CheckSymbolExists.c.o  -o cmTC_42e59 -rdynamic 
CMakeFiles/cmTC_42e59.dir/CheckSymbolExists.c.o: In function `main':
CheckSymbolExists.c:(.text+0x1b): undefined reference to `pthread_create'
collect2: error: ld returned 1 exit status
CMakeFiles/cmTC_42e59.dir/build.make:97: recipe for target 'cmTC_42e59' failed
make[1]: *** [cmTC_42e59] Error 1
make[1]: Leaving directory '/home/lenala/src/OSVR-Core/CMakeFiles/CMakeTmp'
Makefile:126: recipe for target 'cmTC_42e59/fast' failed
make: *** [cmTC_42e59/fast] Error 2

File /home/lenala/src/OSVR-Core/CMakeFiles/CMakeTmp/CheckSymbolExists.c:
/* */
#include <pthread.h>

int main(int argc, char** argv)
{
  (void)argv;
#ifndef pthread_create
  return ((int*)(&pthread_create))[argc];
#else
  (void)argc;
  return 0;
#endif
}

Determining if the function pthread_create exists in the pthreads failed with the following output: Change Dir: /home/lenala/src/OSVR-Core/CMakeFiles/CMakeTmp

Run Build Command:"/usr/bin/make" "cmTC_f2984/fast"
/usr/bin/make -f CMakeFiles/cmTC_f2984.dir/build.make CMakeFiles/cmTC_f2984.dir/build
make[1]: Entering directory '/home/lenala/src/OSVR-Core/CMakeFiles/CMakeTmp'
Building C object CMakeFiles/cmTC_f2984.dir/CheckFunctionExists.c.o
/usr/bin/cc    -DCHECK_FUNCTION_EXISTS=pthread_create   -o CMakeFiles/cmTC_f2984.dir/CheckFunctionExists.c.o   -c /usr/share/cmake-3.7/Modules/CheckFunctionExists.c
Linking C executable cmTC_f2984
/usr/bin/cmake -E cmake_link_script CMakeFiles/cmTC_f2984.dir/link.txt --verbose=1
/usr/bin/cc   -DCHECK_FUNCTION_EXISTS=pthread_create    CMakeFiles/cmTC_f2984.dir/CheckFunctionExists.c.o  -o cmTC_f2984 -rdynamic -lpthreads 
/usr/bin/ld: cannot find -lpthreads
collect2: error: ld returned 1 exit status
CMakeFiles/cmTC_f2984.dir/build.make:97: recipe for target 'cmTC_f2984' failed
make[1]: *** [cmTC_f2984] Error 1
make[1]: Leaving directory '/home/lenala/src/OSVR-Core/CMakeFiles/CMakeTmp'
Makefile:126: recipe for target 'cmTC_f2984/fast' failed
make: *** [cmTC_f2984/fast] Error 2

Answer 1

你使用过

吗？

cmake .. -DJSONCPP_WITH_CMAKE_PACKAGE=ON -DJSONCPP_LIB_BUILD_SHARED=OFF -DCMAKE_CXX_FLAGS=-fPIC

因为这是教程用来构建项目的内容，而CMakaList.txt将处理所有路径。

Answer 2

我设法让它发挥作用。我在〜/ src 目录中重新安装了libfunctionality。然后我删除了OSVR-core的github存储库并再次克隆它。之后，它使用了：

$ cmake .. -DJSONCPP_WITH_CMAKE_PACKAGE=ON -DJSONCPP_LIB_BUILD_SHARED=OFF -DCMAKE_CXX_FLAGS=-fPIC $ make

在Linux上安装OSVR - 设置二进制目录

2 个答案: