SDL_image: cmake+autotools: fix prefix of sdl2_ttf-config.cmake

SDL Commits
1 
From 69e2368b71fa976efe230d88f77d99dc03c44992 Mon Sep 17 00:00:00 2001
From: Anonymous Maarten <[EMAIL REDACTED]>
Date: Mon, 28 Aug 2023 18:37:16 +0200
Subject: [PATCH]  cmake+autotools: fix prefix of sdl2_ttf-config.cmake

There was an issue when /usr/lib64 was symlinked into e.g. /lib and cmake was configured
with -DCMAKE_PREFIX_PATH=/
---
 sdl2_image-config.cmake.in | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sdl2_image-config.cmake.in b/sdl2_image-config.cmake.in
index 4813f75c..3cb43ae1 100644
--- a/sdl2_image-config.cmake.in
+++ b/sdl2_image-config.cmake.in
@@ -35,6 +35,7 @@ set(SDL2IMAGE_BACKEND_IMAGEIO   @USE_IMAGEIO@)
 set(SDL2IMAGE_BACKEND_STB       @USE_STBIMAGE@)
 set(SDL2IMAGE_BACKEND_WIC       @USE_WIC@)
 
+get_filename_component(CMAKE_CURRENT_LIST_DIR ${CMAKE_CURRENT_LIST_DIR} REALPATH)
 get_filename_component(prefix "${CMAKE_CURRENT_LIST_DIR}/@cmake_prefix_relpath@" ABSOLUTE)
 set(exec_prefix "@exec_prefix@")
 set(bindir "@bindir@")