Link shared library with cmake - c++

Question

I have the following project structure:
libs is the directory where the standalone library I'm writing lives.
src is where I consume the library
My three CMakeLists.txt files are the following:
The main entry point:
cmake_minimum_required(VERSION 3.4)
add_subdirectory(src)
add_subdirectory(libs)
The libs/CMakeLists.txt
cmake_minimum_required(VERSION 3.5)
project(Fibula)
message(STATUS "Fibula: v2.0.0")
set(CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}/cmake_modules")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -framework OpenGl -lsfml-graphics -lsfml-audio -lsfml-window -lsfml-system -lGLEW -std=c++14 -Wall -pedantic")
set(FIBULA_INCLUDE_DIR "include")
set(EXECUTABLE_OUTPUT_PATH ${CMAKE_CURRENT_LIST_DIR})
set(LIBRARY_OUTPUT_PATH ${CMAKE_CURRENT_LIST_DIR})
include_directories(${FIBULA_INCLUDE_DIR})
# This stuff needed to put every include file into needed directory when we do make install
file(GLOB BRIDGE ${FIBULA_INCLUDE_DIR}/Bridge/*.hpp)
file(GLOB CORE ${FIBULA_INCLUDE_DIR}/Core/*.hpp)
file(GLOB EVENTS ${FIBULA_INCLUDE_DIR}/Events/*.hpp)
file(GLOB GRAPHICS ${FIBULA_INCLUDE_DIR}/Graphics/*.hpp)
file(GLOB GRAPHICS_TILEMAP ${FIBULA_INCLUDE_DIR}/Graphics/TileMap/*.hpp)
file(GLOB_RECURSE SOURCE_LIST src/*.cpp)
set(HEADER_LIST
${BRIDGE}
${CORE}
${EVENTS}
${GRAPHICS}
${GRAPHICS_TILEMAP}
)
# GLM
find_package(GLM REQUIRED)
if (NOT GLM_FOUND)
message(SEND_ERROR "Failed to find GLM")
return()
else ()
include_directories(${GLM_INCLUDE_DIRS})
endif ()
# GLEW
find_package(GLEW REQUIRED)
if (NOT GLEW_FOUND)
message(SEND_ERROR "Failed to find GLEW")
return()
else ()
include_directories(${GLEW_INCLUDE_DIRS})
endif ()
# SFML
find_package(SFML 2.2 REQUIRED)
if (NOT SFML_FOUND)
message(SEND_ERROR "Failed to find SFML 2")
return()
else ()
include_directories(${SFML_INCLUDE_DIRS})
endif ()
add_library(Fibula SHARED ${SOURCE_LIST} ${HEADER_LIST})
target_link_libraries(Fibula
${GLM_LIBRARIES}
${GLEW_LIBRARIES}
${SFML_LIBARIES}
)
# When we do 'make install' it will put .so file into lib directory and include files into include directory
install(TARGETS ${PROJECT_NAME} LIBRARY DESTINATION ${PROJECT_NAME})
install(FILES ${BRIDGE} DESTINATION include/${PROJECT_NAME}/Bridge/)
install(FILES ${CORE} DESTINATION include/${PROJECT_NAME}/Core/)
install(FILES ${EVENTS} DESTINATION include/${PROJECT_NAME}/Events/)
install(FILES ${GRAPHICS} DESTINATION include/${PROJECT_NAME}/Graphics/)
install(FILES ${GRAPHICS_TILEMAP} DESTINATION include/${PROJECT_NAME}/Graphics/TileMap/)
add_custom_target(install_${PROJECT_NAME}
make install
DEPENDS ${PROJECT_NAME}
COMMENT "Installing ${PROJECT_NAME}")
And the src/CMakeLists.txt:
cmake_minimum_required(VERSION 3.4)
project(demo-game)
set(CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}/cmake_modules")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++14 -Wall")
find_library(FIBULA_LIBRARY
NAMES Fibula
HINTS "${CMAKE_CURRENT_LIST_DIR}/../libs/include/")
include_directories(
"${CMAKE_CURRENT_LIST_DIR}/../libs/include"
Core
)
file(GLOB SOURCE_LIST
*.cpp
../../src/Core/*.cpp
)
add_executable(demo-game ${SOURCE_LIST})
target_link_libraries(demo-game Fibula)
add_custom_target(valgrind)
When I try to include my library as:
#include <Fibula/Core/Kernel.hpp>
I get the following error: