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Add SDL2 fallback in backend_test\CMakeLists.txt

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If SDL was installed using CMake, it normally goes to a location
Where it can be found by `find_package`. There is no need to force
`SDL_PATH` on users, and this commit allows building `backend_test`
Without having to specify it. Backwards compatible.
This commit is contained in:
Grim Maple
2021-12-25 22:35:30 +03:00
parent afce852875
commit d5f713caa1
2 changed files with 16 additions and 5 deletions
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19
backend_test/CMakeLists.txt
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@@ -66,7 +66,13 @@ endif(WIN32)
list(APPEND IMGUI_SOURCES ${BAKENDS_FOLDER}imgui_impl_sdl.cpp)
if(DEFINED SDL_PATH)
message(STATUS "SDL_PATH defined as " ${SDL_PATH})
FIND_PACKAGE(SDL2 REQUIRED PATHS ${SDL_PATH})
FIND_PACKAGE(SDL2 PATHS ${SDL_PATH})
else(DEFINED SDL_PATH)
# If SDL_PATH is not set, fallback and attempt to find SDL cmake script at a default location
find_package(SDL2)
endif(DEFINED SDL_PATH)
if(SDL2_FOUND)
get_target_property(SDL_INCLUDE SDL2::SDL2 INTERFACE_INCLUDE_DIRECTORIES)
message(STATUS "sdlinclude is " ${SDL_INCLUDE})
if ("${SDL_INCLUDE}" STREQUAL "" OR "${SDL_INCLUDE}" STREQUAL "SDL_INCLUDE-NOTFOUND") #if not found latest SDL2 cmake config use older
@@ -80,10 +86,15 @@ if(DEFINED SDL_PATH)
set(SDL_MAIN SDL2::SDL2main)
message(STATUS ${SDL_MAIN} ${IMGUI_SDL_LIBRARY})
endif()
else(DEFINED SDL_PATH)
message(STATUS "SDL_PATH not defined")
else(SDL2_FOUND)
if(DEFINED SDL_PATH)
message(FATAL_ERROR "Cannot find SDL at SDL_PATH")
else(DEFINED SDL_PATH)
message(FATAL_ERROR "Cannot find SDL. Maybe try specifying SDL_PATH?")
endif(DEFINED SDL_PATH)
set(IMGUI_SDL_LIBRARY SDL2)
endif(DEFINED SDL_PATH)
endif(SDL2_FOUND)
add_library(cimgui_sdl SHARED ${IMGUI_SOURCES})
target_link_libraries(cimgui_sdl ${IMGUI_LIBRARIES} ${IMGUI_SDL_LIBRARY})