c++ - 如何使用 CMake 从根文件夹外部添加包含目录？

Question

这是我的第一个 CMakeLists.txt 代码:

#cmake_minimum_required (VERSION 2.6)
project (project)

add_subdirectory(src)

include_directories(${/path_to_directory}/include)

这是子目录下的CMakeLists.txt

set (CMAKE_C_FLAGS "-WALL -g")

file(GLOB SRCS *.cpp *.hpp *.h)

add_executable(source ${SRCS})

我仍然无法在我的项目中包含 path_to_directory

编辑:这也不起作用:

file(GLOB mylib *.cpp *.hpp *.h)

add_executable(includeSource ${mystuff})
target_include_directories(
    mystuff
    PUBLIC ${path_to_directory}/include
)

Answer 1

即使问题不清楚，我猜你想要 target_include_directories(here 文档)而不是 include_directories。

来自文档:

Specify include directories or targets to use when compiling a given target.

您可以将其用作:

target_include_directories(
    your_target_name
    PUBLIC ${/path_to_directory}/include
)