I'm trying to use the PhysFS in my game in C. I'm using CMake to generate the Makefile. CMake indicates well found the include folder and the lib, but I get an error during the build: undefined reference to "PHYSFS_init".
Here is my CMakeLists.txt file:
cmake_minimum_required(VERSION 3.10)
set(PROJECT_NAME "awesome-game")
project(${PROJECT_NAME})
set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
find_package(SDL2 REQUIRED)
find_package(SDL2_image REQUIRED)
find_package(SDL2_mixer REQUIRED)
find_package(PhysFS REQUIRED)
include_directories(${SDL2_DIRS})
include_directories(${SDL2_IMAGE_DIRS})
include_directories(${SDL2_MIXER_DIRS})
include_directories(${PhysFS_DIRS})
file(GLOB_RECURSE SRCS "src/*.h" "src/*.c")
add_executable(${PROJECT_NAME} ${SRCS})
target_link_libraries(${PROJECT_NAME} PRIVATE ${SDL2_LIBRARIES} PRIVATE ${SDL2_IMAGE_LIBRARIES} PRIVATE ${SDL2_MIXER_LIBRARIES})
target_link_libraries(${PROJECT_NAME} PRIVATE ${PhysFS_LIBRARY})
add_definitions(-DSDL_MAIN_HANDLED)
CMakeCache.txt :
//Path to a file.
PHYSFS_INCLUDE_DIR:PATH=/usr/local/include
//Path to a library.
PHYSFS_LIBRARY:FILEPATH=/usr/local/lib/libphysfs.so
//Path to a library.
SDL2MAIN_LIBRARY:FILEPATH=/usr/lib/libSDL2main.a
//SDL2 directory
SDL2_DIR:PATH=
//Path to a file.
SDL2_IMAGE_INCLUDE_DIR:PATH=/usr/include/SDL2
//Path to a library.
SDL2_IMAGE_LIBRARY:FILEPATH=/usr/lib/libSDL2_image.so
//Path to a file.
SDL2_INCLUDE_DIR:PATH=/usr/include/SDL2
//Where the SDL Library can be found
SDL2_LIBRARY:STRING=/usr/lib/libSDL2.so;-lpthread
//Path to a file.
SDL2_MIXER_INCLUDE_DIR:PATH=/usr/include/SDL2
//Path to a library.
SDL2_MIXER_LIBRARY:FILEPATH=/usr/lib/libSDL2_mixer.so
I have the header physfs.h at /usr/local/include/physfs.h
