[build][cmake] Fix definition to use SDL3 (#5175)

* fix definition to use SDL3

* [cmake] fix definition to use SDL3

* [build][cmake] prefer USING_VERSION_SDL3 over PLATFORM_DESKTOP_SDL3

* [build][cmake] when libs are added externally, consumer needs to import them too

cmake/LibraryConfigurations.cmake

@@ -7,6 +7,8 @@ if(POLICY CMP0072)
   cmake_policy(SET CMP0072 NEW)
 endif()
 
+set(RAYLIB_DEPENDENCIES "include(CMakeFindDependencyMacro)")
+
 if (${PLATFORM} MATCHES "Desktop")
     set(PLATFORM_CPP "PLATFORM_DESKTOP")
 
@@ -120,15 +122,17 @@ elseif ("${PLATFORM}" MATCHES "SDL")
 		find_package(SDL3 QUIET)
 		if(SDL3_FOUND)
 			message(STATUS "Found SDL3 via find_package()")
+			set(LIBS_PUBLIC SDL3::SDL3)
+			set(RAYLIB_DEPENDENCIES "${RAYLIB_DEPENDENCIES}\nfind_dependency(SDL3 REQUIRED)")
 			set(PLATFORM_CPP "PLATFORM_DESKTOP_SDL")
-			set(LIBS_PRIVATE SDL3::SDL3)
 			add_compile_definitions(USING_SDL3_PACKAGE)
 		else()
 			# Fallback to SDL2
 			find_package(SDL2 REQUIRED)
 			message(STATUS "Found SDL2 via find_package()")
 			set(PLATFORM_CPP "PLATFORM_DESKTOP_SDL")
-			set(LIBS_PRIVATE SDL2::SDL2)
+			set(LIBS_PUBLIC SDL2::SDL2)
+			set(RAYLIB_DEPENDENCIES "${RAYLIB_DEPENDENCIES}\nfind_dependency(SDL3 REQUIRED)")
 			add_compile_definitions(USING_SDL2_PACKAGE)
 		endif()
 	endif()	

cmake/raylib-config.cmake

@@ -1,2 +1,4 @@
 @PACKAGE_INIT@
+@RAYLIB_DEPENDENCIES@
+
 include("${CMAKE_CURRENT_LIST_DIR}/raylib-targets.cmake")

src/CMakeLists.txt

@@ -92,6 +92,7 @@ if (BUILD_SHARED_LIBS)
 endif ()
 
 target_link_libraries(raylib PRIVATE $<BUILD_INTERFACE:${LIBS_PRIVATE}>)
+target_link_libraries(raylib PUBLIC ${LIBS_PUBLIC})
 
 # Sets some compile time definitions for the pre-processor
 # If CUSTOMIZE_BUILD option is on you will not use config.h by default