find_package(Protobuf REQUIRED)和find_library(protobuf protobuf)
时间: 2023-12-23 10:27:29 浏览: 42
find_package(Protobuf REQUIRED)是CMake中用于寻找Protobuf库的命令。它会在系统中查找Protobuf库,并将其路径保存在变量Protobuf_INCLUDE_DIRS和Protobuf_LIBRARIES中,以供后续使用。
find_library(protobuf protobuf)是CMake中用于寻找名为protobuf的库的命令。它会在系统中查找名为protobuf的库,并将其路径保存在变量protobuf中,以供后续使用。
这两个命令的使用方法如下所示:
1. find_package(Protobuf REQUIRED)
```cmake
cmake_minimum_required(VERSION 3.12)
project(MyProject)
find_package(Protobuf REQUIRED)
add_executable(MyExecutable main.cpp)
target_include_directories(MyExecutable PRIVATE ${Protobuf_INCLUDE_DIRS})
target_link_libraries(MyExecutable PRIVATE ${Protobuf_LIBRARIES})
```
2. find_library(protobuf protobuf)
```cmake
cmake_minimum_required(VERSION 3.12)
project(MyProject)
find_library(protobuf protobuf)
add_executable(MyExecutable main.cpp)
target_link_libraries(MyExecutable PRIVATE ${protobuf})
```
请注意,使用find_package时,需要在CMakeLists.txt中添加find_package(Protobuf REQUIRED)命令,并在target_include_directories和target_link_libraries中使用Protobuf_INCLUDE_DIRS和Protobuf_LIBRARIES变量。而使用find_library时,只需要在target_link_libraries中使用protobuf变量即可。