我一直在尝试在 OSX 10.10 上为 C++11 编译 mongo-cxx-driver，但遇到了一些麻烦。 libbson 和 mongo-c-driver 都已成功构建和安装，库到/usr/local/lib，头文件到/usr/local/include/libbson-1.0 和/usr/local/include/libmongoc-1.0分别。 我从 mongo-cxx-driver/build 目录成功运行了 cmake，这是 shell 的完整输出:
~/code/cpp/mongo-cxx-driver/build ((r3.0.1)) $> cmake -DLIBBSON_DIR=/usr/local/include/libbson-1.0 -DLIBMONGOC_DIR=/usr/local/include/libmongoc-1.0 -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=/usr/local ..
-- Configuring done
-- Generating done
-- Build files have been written to: /Users/user/code/cpp/mongo-cxx-driver
当我从 mongo-cxx-driver 目录运行 make 时，出现以下错误:
...
[ 4%] Building CXX object src/bsoncxx/CMakeFiles/bsoncxx.dir/array/view.cpp.o
/Users/user/code/cpp/mongo-cxx-driver/src/bsoncxx/array/view.cpp:21:10: fatal error: 'bson.h' file not
found
#include <bson.h>
^
1 error generated.
显然编译器找不到那些包含...但是为什么呢？这不是在 cmake 命令行中设置的 LIBBSON_DIR 和 LIBMONGOC_DIR 吗？
编辑: 我使用 cmake 从他们的 git 源构建了 C 驱动程序和 libbson；制作;须藤安装。 今天我从头开始了 mongo-cxx-driver，记录了一路上的所有问题。 mongo-cxx-driver/build 中的 cmake 生成以下输出:
~/code/cpp/mongo-cxx-driver/build (master) $> cmake ..
-- The CXX compiler identification is AppleClang 7.3.0.7030031
-- Check for working CXX compiler: /Library/Developer/CommandLineTools/usr/bin/c++
-- Check for working CXX compiler: /Library/Developer/CommandLineTools/usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- No build type selected, default is Release
-- The C compiler identification is AppleClang 7.3.0.7030031
-- Check for working C compiler: /Library/Developer/CommandLineTools/usr/bin/cc
-- Check for working C compiler: /Library/Developer/CommandLineTools/usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
CMake Error at cmake/FindLibBSON.cmake:38 (message):
Don't know how to find libbson; please set LIBBSON_DIR to the prefix
directory with which libbson was configured.
Call Stack (most recent call first):
src/bsoncxx/CMakeLists.txt:67 (find_package)
-- Configuring incomplete, errors occurred!
See also "/Users/user/code/cpp/mongo-cxx-driver/build/CMakeFiles/CMakeOutput.log".
/mongo-cxx-driver/build/CMakeFiles/CMakeOutput.log 中的 cmake 日志包含(为简洁起见，仅显示 C++11 相关行):
The system is: Darwin - 15.6.0 - x86_64
Compiling the CXX compiler identification source file "CMakeCXXCompilerId.cpp" succeeded.
Compiler: /Library/Developer/CommandLineTools/usr/bin/c++
Build flags:
Id flags:
The output was:
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Compilation of the CXX compiler identification source "CMakeCXXCompilerId.cpp" produced "a.out"
The CXX compiler identification is AppleClang, found in "/Users/user/code/cpp/mongo-cxx-driver/build/CMakeFiles/3.6.2/CompilerIdCXX/a.out"
Determining if the CXX compiler works passed with the following output:
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Detecting CXX compiler ABI info compiled with the following output:
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Apple LLVM version 7.3.0 (clang-703.0.31)
Target: x86_64-apple-darwin15.6.0
Thread model: posix
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"/Library/Developer/CommandLineTools/usr/bin/ld" -demangle -dynamic -arch x86_64 -macosx_version_min 10.11.0 -o cmTC_34702 -search_paths_first -headerpad_max_install_names -v CMakeFiles/cmTC_34702.dir/CMakeCXXCompilerABI.cpp.o -lc++ -lSystem /Library/Developer/CommandLineTools/usr/bin/../lib/clang/7.3.0/lib/darwin/libclang_rt.osx.a
@(#)PROGRAM:ld PROJECT:ld64-264.3.102
configured to support archs: armv6 armv7 armv7s arm64 i386 x86_64 x86_64h armv6m armv7k armv7m armv7em (tvOS)
Library search paths:
/usr/lib
/usr/local/lib
Framework search paths:
/Library/Frameworks/
/System/Library/Frameworks/
Parsed CXX implicit link information from above output:
link line regex: [^( *|.*[/\])(ld|([^/\]+-)?ld|collect2)[^/\]*( |$)]
ignore line: [Change Dir: /Users/user/code/cpp/mongo-cxx-driver/build/CMakeFiles/CMakeTmp]
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ignore line: [Linking CXX executable cmTC_34702]
ignore line: [/usr/local/Cellar/cmake/3.6.2/bin/cmake -E cmake_link_script CMakeFiles/cmTC_34702.dir/link.txt --verbose=1]
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ignore line: [Apple LLVM version 7.3.0 (clang-703.0.31)]
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remove lib [System]
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collapse library dir [/usr/lib] ==> [/usr/lib]
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(如果需要其他线路，我很乐意发送)。 ls/usr/local/lib/pkgconfig 显示如下:
lcms2.pc libbson-1.0.pc libmongoc-1.0.pc libmongoc-ssl-1.0.pc libtiff-4.pc mysqlclient.pc
最佳答案
发现问题。 @acm 要求显示 pkg-config --cflags --libs libmongoc-1.0 libbson-1.0 的输出，我尝试这样做:
~/code/cpp/mongo-cxx-driver/build (master) $> pkg-config --cflags --libs libmongoc-1.0 libbson-1.0
-bash: pkg-config: command not found
显然没有安装 pkg-config。稍后通过自制软件快速安装，我运行相同的行并得到:
~/code/cpp/mongo-cxx-driver/build (master) $> pkg-config --cflags --libs libmongoc-1.0 libbson-1.0
-I/usr/local/include/libmongoc-1.0 -I/usr/local/include/libbson-1.0 -L/usr/local/lib -lmongoc-1.0 -lbson-1.0
在那之后 cmake 运行得很好，make 也运行得很好。
感谢您的帮助:-)
关于c++ - 使 mongo-cxx-driver 找不到包括，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/39490432/
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