"Cannot open include file" when implementing library that implements GLM using CMake - c++

Question

I'm creating a game using opengl, glfw and glm. Now I have two projects, the engine (named Cheetah) and the game. The engine is a dll library and the game implements that library. Both the engine and the game projects contain a CMakeLists.txt, and there is one top level CMakeLists.txt that builds both.
The folder structure is as below:
The issue
I'm trying to add glm to the library, but now I'm running in to the issue that I can build my library but I'm unable to build the game project that implements the library, throwing the compile error:
Error C1083 Cannot open include file: 'glm/common.hpp': No such file
or
directory C:\Projects\Game\out\build\x64-Debug\Game C:\Projects\Game\Cheetah\src\Engine\Renderer\OrthoGraphicCamera.h
Here are the CMake files per project:
Cheetah(Engine project)
# CMakeList.txt : CMake project for Cheetah, include source and define
# project specific logic here.
#
cmake_minimum_required (VERSION 3.8)
project ("Cheetah")
# Platform defines
IF (WIN32)
add_compile_definitions(CH_PLATFORM_WINDOWS)
ELSE()
# set stuff for other systems
ENDIF()
#----------------------------------------------
# ADD CHEETAH LIBRARY
#----------------------------------------------
message(${PROJECT_SOURCE_DIR})
# Define Cheetah variables
set(LIB_DIR "${PROJECT_SOURCE_DIR}/dependencies")
set(INCLUDES_DIR_PUBLIC "${PROJECT_SOURCE_DIR}/includes")
set(INCLUDES_DIR_PRIVATE "${PROJECT_SOURCE_DIR}/src")
set(ENGINE_DIR "${PROJECT_SOURCE_DIR}/src/Engine")
set(ENGINE_CORE_DIR "${ENGINE_DIR}/Core")
set(ENGINE_INPUT_DIR "${ENGINE_DIR}/Input")
set(ENGINE_EVENTS_DIR "${ENGINE_DIR}/Events")
set(ENGINE_RENDERER_DIR "${ENGINE_DIR}/Renderer")
set(ENGINE_DEBUG_DIR "${ENGINE_DIR}/Debug")
set(ENGINE_MATH_DIR "${ENGINE_DIR}/Math")
set(ENGINE_RESOURCES_DIR "${ENGINE_DIR}/Resources")
set(PLATFORM_DIR "${PROJECT_SOURCE_DIR}/src/Platform")
set(PLATFORM_WINDOWS_DIR "${PLATFORM_DIR}/Windows")
set(PLATFORM_OPENGL_DIR "${PLATFORM_DIR}/OpenGL")
# Set default files
list(APPEND SOURCE_FILES
"${ENGINE_DIR}/Engine.h"
"${ENGINE_CORE_DIR}/Application.h"
"${ENGINE_CORE_DIR}/Application.cpp"
"${ENGINE_CORE_DIR}/Core.h"
"${ENGINE_CORE_DIR}/EntryPoint.h"
"${ENGINE_CORE_DIR}/Window.h"
"${ENGINE_CORE_DIR}/UpdateLayer.h"
"${ENGINE_CORE_DIR}/UpdateLayer.cpp"
"${ENGINE_CORE_DIR}/UpdateLayerQueue.h"
"${ENGINE_CORE_DIR}/UpdateLayerQueue.cpp"
"${ENGINE_CORE_DIR}/Time.h"
"${ENGINE_CORE_DIR}/Time.cpp"
"${ENGINE_RENDERER_DIR}/RenderAction.h"
"${ENGINE_RENDERER_DIR}/RenderAction.cpp"
"${ENGINE_RENDERER_DIR}/GraphicsContext.h"
"${ENGINE_RENDERER_DIR}/GraphicsContext.cpp"
"${ENGINE_RENDERER_DIR}/RenderAPI.h"
"${ENGINE_RENDERER_DIR}/RenderAPI.cpp"
"${ENGINE_RENDERER_DIR}/Renderer.h"
"${ENGINE_RENDERER_DIR}/Renderer.cpp"
"${ENGINE_RENDERER_DIR}/Renderer2D.h"
"${ENGINE_RENDERER_DIR}/Renderer2D.cpp"
"${ENGINE_RENDERER_DIR}/IndexBuffer.h"
"${ENGINE_RENDERER_DIR}/IndexBuffer.cpp"
"${ENGINE_RENDERER_DIR}/VertexBuffer.h"
"${ENGINE_RENDERER_DIR}/VertexBuffer.cpp"
"${ENGINE_RENDERER_DIR}/VertexArray.h"
"${ENGINE_RENDERER_DIR}/VertexArray.cpp"
"${ENGINE_RENDERER_DIR}/Shader.h"
"${ENGINE_RENDERER_DIR}/Shader.cpp"
"${ENGINE_RENDERER_DIR}/VertexBufferLayout.h"
"${ENGINE_RENDERER_DIR}/VertexBufferLayout.cpp"
"${ENGINE_RENDERER_DIR}/Texture.h"
"${ENGINE_RENDERER_DIR}/Texture.cpp"
"${ENGINE_RENDERER_DIR}/OrthoGraphicCamera.h"
"${ENGINE_RENDERER_DIR}/OrthoGraphicCamera.cpp"
"${ENGINE_RENDERER_DIR}/Renderer2DQueue.h"
"${ENGINE_RENDERER_DIR}/Renderer2DQueue.cpp"
"${ENGINE_INPUT_DIR}/Input.h"
"${ENGINE_INPUT_DIR}/Input.cpp"
"${ENGINE_EVENTS_DIR}/ApplicationEvents.h"
"${ENGINE_EVENTS_DIR}/ApplicationEvents.cpp"
"${ENGINE_EVENTS_DIR}/Event.h"
"${ENGINE_EVENTS_DIR}/Event.cpp"
"${ENGINE_EVENTS_DIR}/EventDispatcher.h"
"${ENGINE_EVENTS_DIR}/EventDispatcher.cpp"
"${ENGINE_EVENTS_DIR}/EventTypes.h"
"${ENGINE_EVENTS_DIR}/InputEvents.h"
"${ENGINE_EVENTS_DIR}/InputEvents.cpp"
"${ENGINE_RESOURCES_DIR}/ResourceCache.h"
"${ENGINE_RESOURCES_DIR}/ResourceCache.inl"
"${ENGINE_RESOURCES_DIR}/ResourceLoader.h"
"${ENGINE_RESOURCES_DIR}/ResourceLoader.cpp"
)
# Set platform specific files
# Windows
list(APPEND SOURCE_FILES_WINDOWS
"${PLATFORM_WINDOWS_DIR}/WindowsWindow.h"
"${PLATFORM_WINDOWS_DIR}/WindowsWindow.cpp"
"${PLATFORM_WINDOWS_DIR}/WindowsTime.h"
"${PLATFORM_WINDOWS_DIR}/WindowsTime.cpp"
"${PLATFORM_WINDOWS_DIR}/WindowsInput.h"
"${PLATFORM_WINDOWS_DIR}/WindowsInput.cpp"
)
# OpenGL
list(APPEND SOURCE_FILES_OPENGL
"${PLATFORM_OPENGL_DIR}/OpenGLRenderAPI.h"
"${PLATFORM_OPENGL_DIR}/OpenGLRenderAPI.cpp"
"${PLATFORM_OPENGL_DIR}/OpenGLGraphicsContext.h"
"${PLATFORM_OPENGL_DIR}/OpenGLGraphicsContext.cpp"
"${PLATFORM_OPENGL_DIR}/OpenGLVertexBuffer.h"
"${PLATFORM_OPENGL_DIR}/OpenGLVertexBuffer.cpp"
"${PLATFORM_OPENGL_DIR}/OpenGLIndexBuffer.h"
"${PLATFORM_OPENGL_DIR}/OpenGLIndexBuffer.cpp"
"${PLATFORM_OPENGL_DIR}/OpenGLShader.h"
"${PLATFORM_OPENGL_DIR}/OpenGLShader.cpp"
"${PLATFORM_OPENGL_DIR}/OpenGLVertexArray.h"
"${PLATFORM_OPENGL_DIR}/OpenGLVertexArray.cpp"
"${PLATFORM_OPENGL_DIR}/OpenGLTexture.h"
"${PLATFORM_OPENGL_DIR}/OpenGLTexture.cpp"
)
list(APPEND SOURCE_FILES ${SOURCE_FILES_OPENGL})
# Append Platform specific files
# Operating platform
IF (WIN32)
list(APPEND SOURCE_FILES ${SOURCE_FILES_WINDOWS})
# TODO: Linux
# TODO: MacOS
# TODO: Android
# TODO: IOS
ENDIF()
# Add source to this project's executable.
add_library(Cheetah SHARED ${SOURCE_FILES})
target_include_directories (Cheetah INTERFACE ${INCLUDES_DIR_PUBLIC})
target_include_directories (Cheetah PRIVATE ${ENGINE_DIR})
target_include_directories (Cheetah PRIVATE ${INCLUDES_DIR_PRIVATE})
# Add compile definitions
list(APPEND CHEETAH_COMP_DEFS
"CH_BUILD_DLL"
${RENDER_API}
)
target_compile_definitions(Cheetah PRIVATE ${CHEETAH_COMP_DEFS})
target_compile_definitions(Cheetah PUBLIC "$<$<CONFIG:DEBUG>:DEBUG>")
target_compile_definitions(Cheetah PUBLIC "$<$<CONFIG:DEBUG>:CH_ASSERT_ENABLED>")
set_target_properties(Cheetah PROPERTIES LINKER_LANGUAGE CXX)
# Copy dll to game project build folder
IF(${APPLICATION_NAME})
message("---------------------------------------------------------------------")
add_custom_command(
TARGET Cheetah
POST_BUILD
COMMAND ${CMAKE_COMMAND} -E copy_if_different
"${PROJECT_BINARY_DIR}/Cheetah.dll"
"${PROJECT_BINARY_DIR}/${APPLICATION_NAME}"
)
ENDIF()
#----------------------------------------------
# ADD OPENGL LIBRARY DEPENDENCY
#----------------------------------------------
find_package(OpenGL REQUIRED)
target_link_libraries(Cheetah ${OpenGL})
#----------------------------------------------
# ADD GLFW LIBRARY DEPENDENCY
#----------------------------------------------
set(GLFW_DIR "${LIB_DIR}/glfw")
set(GLFW_BUILD_EXAMPLES OFF CACHE INTERNAL "Build the GLFW example programs")
set(GLFW_BUILD_TESTS OFF CACHE INTERNAL "Build the GLFW test programs")
set(GLFW_BUILD_DOCS OFF CACHE INTERNAL "Build the GLFW documentation")
set(GLFW_INSTALL OFF CACHE INTERNAL "Generate installation target")
add_subdirectory("${GLFW_DIR}")
target_include_directories(Cheetah PRIVATE "${GLFW_DIR}/include")
target_link_libraries(Cheetah "glfw" "${GLFW_LIBRARIES}")
target_compile_definitions(Cheetah PRIVATE "GLFW_INCLUDE_NONE")
#----------------------------------------------
# ADD GLAD LIBRARY DEPENDENCY
#----------------------------------------------
set(GLAD_DIR "${LIB_DIR}/glad")
add_library("glad" "${GLAD_DIR}/src/glad.c")
target_include_directories("glad" PRIVATE "${GLAD_DIR}/include")
target_include_directories(Cheetah PUBLIC "${GLAD_DIR}/include")
target_link_libraries(Cheetah "glad" "${CMAKE_DL_LIBS}")
#----------------------------------------------
# ADD STB_IMAGE LIBRARY DEPENDENCY
#----------------------------------------------
set(STB_IMAGE_DIR "${LIB_DIR}/stb_image")
add_library("stb_image" "${STB_IMAGE_DIR}/stb_image.cpp")
target_include_directories("stb_image" PRIVATE "${STB_IMAGE_DIR}/include")
target_include_directories(Cheetah PUBLIC "${STB_IMAGE_DIR}/include")
target_link_libraries(Cheetah "stb_image" "${CMAKE_DL_LIBS}")
#---------------------------------------------
# ADD GLM LIBRARY DEPENDENCY
# --------------------------------------------
set(GLM_DIR "${LIB_DIR}/glm")
add_subdirectory("${LIB_DIR}/glm")
target_include_directories(Cheetah PRIVATE "${GLM_DIR}/glm")
target_link_libraries(Cheetah glm)
Game
# CMakeList.txt : CMake project for Cheetah, include source and define
# project specific logic here.
#
cmake_minimum_required (VERSION 3.13)
set(SOURCE_DIR "${PROJECT_SOURCE_DIR}/Game/src")
list(APPEND SOURCE_FILES
"${SOURCE_DIR}/Main.cpp"
"${SOURCE_DIR}/GameLayer.cpp"
"${SOURCE_DIR}/GameLayer.h"
"${SOURCE_DIR}/GameObject.h"
"${SOURCE_DIR}/GameObject.cpp"
"${SOURCE_DIR}/Scene.h"
"${SOURCE_DIR}/Scene.cpp"
"${SOURCE_DIR}/GameScene.h"
"${SOURCE_DIR}/GameScene.cpp"
)
# Platform defines
IF (WIN32)
add_compile_definitions(CH_PLATFORM_WINDOWS)
ELSE()
# set stuff for other systems
ENDIF()
find_library( CHEETAH_LIB
NAMES Cheetah
HINTS "${CMAKE_BINARY_DIR}/Cheetah")
# Add source to this project's executable.
add_executable (Game ${SOURCE_FILES})
target_include_directories(Game PUBLIC "${PROJECT_SOURCE_DIR}/Cheetah/includes")
# TODO: Add tests and install targets if needed.
target_link_libraries(Game ${CHEETAH_LIB})
Top level CMakeList
# CMakeList.txt : Top-level CMake project file, do global configuration
# and include sub-projects here.
#
cmake_minimum_required (VERSION 3.8)
project ("Game")
set(APPLICATION_NAME "Game")
set(RENDER_API "OPENGL")
# Include sub-projects.
add_subdirectory("Cheetah")
add_subdirectory ("Game")
Anything that could point me in the right direction is much appreciated!

Answer 1

The include directories you specify for the Game target is a pretty short list, compared to what you specify for Cheetah:
target_include_directories(Game PUBLIC "${PROJECT_SOURCE_DIR}/Cheetah/includes")
It seems like you may need some of these Cheetah include directories for Game as well.
Note: If you are willing to re-organize the design of these two projects to always use the top-level CMake file, there is no need to use find_library() to find the Cheetah library. CMake already knows about the Cheetah target, as it was just created! The Game CMakeLists.txt file could look like this:
# CMakeList.txt : CMake project for Game, include source and define
# project specific logic here.
#
cmake_minimum_required (VERSION 3.13)
set(SOURCE_DIR "${PROJECT_SOURCE_DIR}/Game/src")
list(APPEND SOURCE_FILES
"${SOURCE_DIR}/Main.cpp"
"${SOURCE_DIR}/GameLayer.cpp"
"${SOURCE_DIR}/GameLayer.h"
"${SOURCE_DIR}/GameObject.h"
"${SOURCE_DIR}/GameObject.cpp"
"${SOURCE_DIR}/Scene.h"
"${SOURCE_DIR}/Scene.cpp"
"${SOURCE_DIR}/GameScene.h"
"${SOURCE_DIR}/GameScene.cpp"
)
# Platform defines
# Note, this block can also be removed if target_compile_definitions
# is used for Cheetah instead.
IF (WIN32)
add_compile_definitions(CH_PLATFORM_WINDOWS)
ELSE()
# set stuff for other systems
ENDIF()
# Add source to this project's executable.
add_executable (Game ${SOURCE_FILES})
# TODO: Add tests and install targets if needed.
target_link_libraries(Game PUBLIC Cheetah)
The Cheetah target will carry all of the include directories along with it, so there is no need to list them all separately again. It can propagate the compile definitions as well, just use target_compile_definitions() when defining them for the Cheetah target.