无法使用 CMake 找到包 GLFW

Question

我的项目结构是这样的：

CMakeLists.txt
部门
- glew
- glfw
包括
来源
- ...
- 图形
  - ...
  - CMakeLists.txt

两个CMakeLists.txt文件值得关注：

CMakeLists.txt

cmake_minimum_required(VERSION 3.9)
project(noam_engine)

find_package(glfw3 REQUIRED)
find_package(OpenGL REQUIRED)
find_package(GLEW REQUIRED)

set(CMAKE_CXX_STANDARD 11)
set(NE_LIBRARIES common math graphics)

FOREACH(lib ${NE_LIBRARIES})
    add_subdirectory(src/${lib})
ENDFOREACH(lib)

add_executable(noam_engine src/main.cpp)

if(OPENGL_FOUND AND GLEW_FOUND)
    target_include_directories(noam_engine PUBLIC include ${OPENGL_INCLUDE_DIR} ${GLEW_INCLUDE_DIRS})
    target_link_libraries(noam_engine ${NE_LIBRARIES})
endif()

src/graphics/CMakeLists.txt

cmake_minimum_required(VERSION 3.9)

find_package(glfw3 REQUIRED)
find_package(OpenGL REQUIRED)
find_package(GLEW REQUIRED)

file(GLOB SRC "*.cpp")
add_library(graphics ${SRC})

if(OPENGL_FOUND AND GLEW_FOUND)
    target_include_directories(graphics PUBLIC ${PROJECT_SOURCE_DIR}/include ${OPENGL_INCLUDE_DIR} ${GLEW_INCLUDE_DIRS})
    target_link_libraries(graphics ${OPENGL_gl_LIBRARY} ${GLFW3_LIBRARY} ${GLEW_LIBRARIES})
    message(STATUS "GLFW and GLEW successfully linked")
    message(STATUS ${OPENGL_gl_LIBRARY})
    message(STATUS ${GLFW3_LIBRARY})
    message(STATUS ${GLEW_LIBRARIES})
else()
    message(STATUS "Cannot find GL libraries")
endif()

简而言之，我想创建一堆引擎静态库，特别是 link graphics 带有 GL 的库，最后 link 所有这些都带有root CMakeLists.txt.

中的可执行文件

但是我注意到 ${GLFW3_LIBRARY} 是空的，我得到了一个 linker 错误，例如，当我调用 glfwInit()。我在构建和安装 GLFW

期间遵循了指南

cmake .
make
make install

我相信头文件和库在 /usr/local/* 中，但显然 CMake 找不到它们或者我做错了什么。

我唯一的假设是 find_package 不知道 glfw3Config.cmake 在 deps/glfw/*

Answer 1

我从 https://github.com/JoeyDeVries/LearnOpenGL/blob/master/cmake/modules/FindGLFW3.cmake 中获取脚本并将其放入 cmake 文件夹中。然后在 CMakeLists.txt 我添加了

list(APPEND CMAKE_MODULE_PATH "${PROJECT_SOURCE_DIR}/cmake")

现在一切正常

感谢@Tsyvarev

无法使用 CMake 找到包 GLFW

Cannot find package GLFW using CMake

opengl

cmake

glfw