CMake + SFML + imgui By not providing "FindImGui-SFML.cmake"

[Reavolt]

Hello, I have a CMakeList like this.

cmake_minimum_required(VERSION 3.17)
project(test VERSION 0.1 LANGUAGES CXX)

set(CMAKE_CXX_STANDARD 20)

# SFML
## If you want to link SFML statically
set(CMAKE_EXE_LINKER_FLAGS "-static -static-libgcc")
set(SFML_STATIC_LIBRARIES TRUE)

## In most cases better set in the CMake cache
set(SFML_DIR "./library/frameworks/SFML-2.5.1/lib/cmake/SFML")
set(ImGui_DIR "./library/frameworks/imgui")
set(ImGui-SFML_DIR "./library/frameworks/imgui-sfml/cmake")

add_executable(test src/main.cpp)

find_package(SFML 2.5 COMPONENTS system window graphics network audio REQUIRED)
target_link_libraries(test sfml-system sfml-window sfml-graphics sfml-network sfml-audio)
target_include_directories(test PUBLIC ${SFML_INCLUDE_DIRS})

find_package(ImGui-SFML REQUIRED)
target_link_libraries(test PRIVATE ImGui-SFML::ImGui-SFML)
target_include_directories(test PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/library/frameworks/imgui)
target_include_directories(test PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/library/frameworks/imgui-sfml)

When I compile, I get this message.

CMake Error at CMakeLists.txt:22 (find_package):
  By not providing "FindImGui-SFML.cmake" in CMAKE_MODULE_PATH this project
  has asked CMake to find a package configuration file provided by
  "ImGui-SFML", but CMake did not find one.

  Could not find a package configuration file provided by "ImGui-SFML" with
  any of the following names:

    ImGui-SFMLConfig.cmake
    imgui-sfml-config.cmake

  Add the installation prefix of "ImGui-SFML" to CMAKE_PREFIX_PATH or set
  "ImGui-SFML_DIR" to a directory containing one of the above files.  If
  "ImGui-SFML" provides a separate development package or SDK, be sure it has
  been installed.

I can't figure out where I get the FindImGui-SFML.cmake file from.

[DmitruMoth]

You can compile and install lib before use it
make install
Also you can use add_subdirectory(pathToRootImgui-SFML) in your CMakeLists.txt
The same with SFML

[Reavolt]

You can compile and install lib before use it
make install
Also you can use add_subdirectory(pathToRootImgui-SFML) in your CMakeLists.txt
The same with SFML

I'm trying to put it together like this.

cmake C:\\Users\\admin3\\CLionProjects\\test\\library\\frameworks\\imgui-sfml -DIMGUI_DIR=C:\\Users\\admin3\\CLionProjects\\test\\library\\frameworks\\imgui -DSFML_DIR=C:\\Users\\admin3\\CLionProjects\\test\\library\\frameworks\\SFML-2.5.1 -D"CMAKE_MAKE_PROGRAM:PATH=‪C:\\msys64\\usr\\bin\\cmake.exe" -D"CMAKE_CXX_COMPILER:PATH=C:\\msys64\\mingw32\\bin\\g++.exe" -G "Unix Makefiles"

In PATH everything is spelled out and the compiler can be seen

[DmitruMoth]

Is your cmake installed via mingw(or msys2) or manually?

[DmitruMoth]

If cmake installed via pacman in mingw/msys (packet: mingw-w64-x86_64-cmake) try to do this:

1. Copy all folders from root SFML and ImGui(bin, include etc...) to minw32 or mingw64 folder
2. In CMakeLists.txt just write find_package, without set sfml_dir
3. In Clion settings(Build - Toolchains) pick custom cmake executable and set path to cmake, by default - bundled cmake
4. Reload cmake project

[Reavolt]

Is your cmake installed via mingw(or msys2) or manually?

The last thing I could do
Yes, I use Msys2 and mingw-w64-x86_64-toolchain + mingw-w64-x86_64-cmake.

I get this error, but there is a file there

CMake Error at CMakeLists.txt:47 (message):
  SFML 2 directory not found.  Set SFML_DIR to directory where SFML was built
  (or one which ccontains SFMLConfig.cmake)

[DmitruMoth]

Use cmake -G "MinGW Makefiles"
Also you need mingw build of SFML
So, here is complete tutorial:

1. install msys2
2. install cmake pacman -S mingw-w64-x86_64-cmake
3. Download SFML Mingw build and place it in C:\Program Files(x86), or move folders of SFML to msys2/mingw(32or64)/
4. Clone Imgui and imgui-sfml repo
5. Go to imgui-sfml, create build folder and execute cmake .. -G "MinGW Makefiles" -DCMAKE_BUILD_TYPE=Release -DIMGUI_DIR=pathToImGuiRoot Add flag -DBUILD_SHARED_LIBS=On flag if SFML build is shared
6. Execute make and make install(require admin)
7. In CMakeLists write

find_package(SFML 2.5 COMPONENTS graphics window system REQUIRED)
find_package(ImGui-SFML REQUIRED)
target_link_libraries(${PROJECT_NAME} sfml-graphics sfml-window sfml-system ImGui-SFML::ImGui-SFML)

[eliasdaler]

Closing for now - the provided answer should work.