From 6f19fecba33f3a6d921c824d4cb11827281cc61a Mon Sep 17 00:00:00 2001
From: Anonymous Maarten <[EMAIL REDACTED]>
Date: Tue, 13 Jan 2026 20:58:31 +0100
Subject: [PATCH] cmake: compile SDL_uclibc separately for shared and static
SDL3, ensuring fPIC for shared SDL3
---
CMakeLists.txt | 27 +++++++++++++++------------
1 file changed, 15 insertions(+), 12 deletions(-)
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0508d7bb52373..5f596b8b7c28e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1294,22 +1294,25 @@ sdl_glob_sources(
"${SDL3_SOURCE_DIR}/src/video/yuv2rgb/*.h"
)
-# Build uclibc as a static library such that non-used symbols don't end up in the SDL3 shared library.
file(GLOB SDL_UCLIBC_SOURCES "${SDL3_SOURCE_DIR}/src/libm/*.c")
-add_library(SDL_uclibc STATIC "${SDL_UCLIBC_SOURCES}")
-target_compile_definitions(SDL_uclibc PRIVATE USING_GENERATED_CONFIG_H)
-target_include_directories(SDL_uclibc PRIVATE "${SDL3_BINARY_DIR}/include-config-$<LOWER_CASE:$<CONFIG>>/build_config")
-target_include_directories(SDL_uclibc PRIVATE "${SDL3_SOURCE_DIR}/src")
-target_include_directories(SDL_uclibc PRIVATE "${SDL3_SOURCE_DIR}/include")
-SDL_AddCommonCompilerFlags(SDL_uclibc)
-target_compile_definitions(SDL_uclibc PRIVATE "$<$<CONFIG:Debug>:DEBUG>")
-sdl_sources(STATIC "$<TARGET_OBJECTS:SDL_uclibc>")
-set_property(TARGET SDL_uclibc PROPERTY UNITY_BUILD OFF)
if(TARGET SDL3-shared)
+ # Build uclibc as a static library such that non-used symbols don't end up in the SDL3 shared library.
+ add_library(SDL_uclibc STATIC ${SDL_UCLIBC_SOURCES})
+ set_property(TARGET SDL_uclibc PROPERTY POSITION_INDEPENDENT_CODE TRUE)
+ target_compile_definitions(SDL_uclibc PRIVATE USING_GENERATED_CONFIG_H)
+ target_include_directories(SDL_uclibc PRIVATE "${SDL3_BINARY_DIR}/include-config-$<LOWER_CASE:$<CONFIG>>/build_config")
+ target_include_directories(SDL_uclibc PRIVATE "${SDL3_SOURCE_DIR}/src")
+ target_include_directories(SDL_uclibc PRIVATE "${SDL3_SOURCE_DIR}/include")
+ SDL_AddCommonCompilerFlags(SDL_uclibc)
+ target_compile_definitions(SDL_uclibc PRIVATE "$<$<CONFIG:Debug>:DEBUG>")
+ set_property(TARGET SDL_uclibc PROPERTY UNITY_BUILD OFF)
target_link_libraries(SDL3-shared PRIVATE SDL_uclibc)
+ if(HAVE_GCC_FVISIBILITY)
+ set_property(TARGET SDL_uclibc PROPERTY C_VISIBILITY_PRESET "hidden")
+ endif()
endif()
-if(HAVE_GCC_FVISIBILITY)
- set_property(TARGET SDL_uclibc PROPERTY C_VISIBILITY_PRESET "hidden")
+if(TARGET SDL3-static)
+ target_sources(SDL3-static PRIVATE ${SDL_UCLIBC_SOURCES})
endif()
# Enable/disable various subsystems of the SDL library