SDL: cmake: build SDL_uclibc with -fPIC

SDL Commits
1 
From 9784414dddc1b5bca7587cc27acc1b458876f635 Mon Sep 17 00:00:00 2001
From: Anonymous Maarten <[EMAIL REDACTED]>
Date: Thu, 20 Feb 2025 20:27:27 +0100
Subject: [PATCH] cmake: build SDL_uclibc with -fPIC

---
 CMakeLists.txt | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index c944b3c3ffa62..4028e516f2d67 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1191,7 +1191,8 @@ sdl_glob_sources(
 
 # Build uclibc as a static library such that non-used symbols don't end up in the SDL3 shared library.
 file(GLOB SDL_UCLIBC_SOURCES "${SDL3_SOURCE_DIR}/src/libm/*.c")
-add_library(SDL_uclibc STATIC "${SDL_UCLIBC_SOURCES}")
+add_library(SDL_uclibc STATIC EXCLUDE_FROM_ALL "${SDL_UCLIBC_SOURCES}")
+set_property(TARGET SDL_uclibc PROPERTY POSITION_INDEPENDENT_CODE TRUE)
 target_compile_definitions(SDL_uclibc PRIVATE USING_GENERATED_CONFIG_H)
 target_include_directories(SDL_uclibc PRIVATE "${SDL3_BINARY_DIR}/include-config-$<LOWER_CASE:$<CONFIG>>/build_config")
 target_include_directories(SDL_uclibc PRIVATE "${SDL3_SOURCE_DIR}/src")