SDL_image: cmake: only link to SDL2 at build time to avoid exporting the dependency

SDL Commits
1 
From 5d9ee78d7117e98721799596395ca69751e0cf13 Mon Sep 17 00:00:00 2001
From: Anonymous Maarten <[EMAIL REDACTED]>
Date: Sat, 23 Jul 2022 15:35:17 +0200
Subject: [PATCH] cmake: only link to SDL2 at build time to avoid exporting the
 dependency

---
 CMakeLists.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4283e513..6d02f623 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -215,7 +215,7 @@ target_compile_definitions(SDL2_image PRIVATE
     SDL_BUILD_MINOR_VERSION=${MINOR_VERSION}
     SDL_BUILD_MICRO_VERSION=${MICRO_VERSION}
 )
-target_link_libraries(SDL2_image PRIVATE ${sdl2_target_name})
+target_link_libraries(SDL2_image PRIVATE $<BUILD_INTERFACE:${sdl2_target_name}>)
 if(WIN32 AND SDL2IMAGE_BUILD_SHARED_LIBS)
     target_sources(SDL2_image PRIVATE
         version.rc