如何在cmake中添加库路径？ [英] How do I add a library path in cmake?

问题描述

我的项目中有2个文件夹 inc和 lib，分别具有标题和静态库。如何告诉cmake分别使用这两个目录进行include和linking？

解决方案

最简单的方法是添加

  include_directories（$ {CMAKE_SOURCE_DIR} / inc）
 link_directories（$ {CMAKE_SOURCE_DIR} / lib）
 
 add_executable（foo $ {FOO_SRCS}）
 target_link_libraries（foo bar）＃libbar.so在$ {CMAKE_SOURCE_DIR} / lib 
   
 
 
现代CMake版本不会向每个编译器调用添加 -I和-L 标志使用导入的库：
  add_library（栏已共享导入）＃或STATIC而不是SHARED 
 set_target_properties（栏属性
 IMPORTED_LOCATION $ {CMAKE_SOURCE_DIR} /lib/libbar.so 
 INTERFACE_INCLUDE_DIRECTORIES $ {CMAKE_SOURCE_DIR} / include / libbar 
）
 
 set（FOO_SRCS foo.cpp ）
 add_executable（foo $ {FOO_SRCS}）
 target_link_libraries（foo bar）＃也添加了ed include path 
  
如果设置 INTERFACE_INCLUDE_DIRECTORIES 不没有添加路径，较早版本的CMake也允许您使用 target_include_directories（bar PUBLIC / path / to / include）。但是，此在CMake 3.6或更高版本中不再起作用。
 
I have 2 folders "inc" and "lib" in my project which have headers and static libs respectively. How do I tell cmake to use those 2 directories for include and linking respectively?
解决方案
The simplest way of doing this would be to add
include_directories(${CMAKE_SOURCE_DIR}/inc)
link_directories(${CMAKE_SOURCE_DIR}/lib)

add_executable(foo ${FOO_SRCS})
target_link_libraries(foo bar) # libbar.so is found in ${CMAKE_SOURCE_DIR}/lib
The modern CMake version that doesn't add the -I and -L flags to every compiler invocation would be to use imported libraries:
add_library(bar SHARED IMPORTED) # or STATIC instead of SHARED
set_target_properties(bar PROPERTIES
  IMPORTED_LOCATION "${CMAKE_SOURCE_DIR}/lib/libbar.so"
  INTERFACE_INCLUDE_DIRECTORIES "${CMAKE_SOURCE_DIR}/include/libbar"
)

set(FOO_SRCS "foo.cpp")
add_executable(foo ${FOO_SRCS})
target_link_libraries(foo bar) # also adds the required include path
If setting the INTERFACE_INCLUDE_DIRECTORIES doesn't add the path, older versions of CMake also allow you to use target_include_directories(bar PUBLIC /path/to/include). However, this no longer works with CMake 3.6 or newer.

                        
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