cmake: Prefix all options with "SDL_"

This makes it clear which options came from SDL's CMake project when
building SDL as a subdirectory of a parent CMake project.

Fixes #4139.

CMakeLists.txt

@@ -212,8 +212,8 @@ if(UNIX OR MINGW OR MSYS OR (USE_CLANG AND NOT WINDOWS) OR VITA)
 endif()
 
 if(MSVC)
-  option(FORCE_STATIC_VCRT "Force /MT for static VC runtimes" OFF)
-  if(FORCE_STATIC_VCRT)
+  option(SDL_FORCE_STATIC_VCRT "Force /MT for static VC runtimes" OFF)
+  if(SDL_FORCE_STATIC_VCRT)
     foreach(flag_var
         CMAKE_C_FLAGS CMAKE_C_FLAGS_DEBUG CMAKE_C_FLAGS_RELEASE
         CMAKE_C_FLAGS_MINSIZEREL CMAKE_C_FLAGS_RELWITHDEBINFO)
@@ -324,82 +324,82 @@ foreach(_SUB ${SDL_SUBSYSTEMS})
   option(SDL_${_OPT} "Enable the ${_SUB} subsystem" ${SDL_${_OPT}_ENABLED_BY_DEFAULT})
 endforeach()
 
-option_string(ASSERTIONS "Enable internal sanity checks (auto/disabled/release/enabled/paranoid)" "auto")
-#set_option(DEPENDENCY_TRACKING "Use gcc -MMD -MT dependency tracking" ON)
-set_option(LIBC                "Use the system C library" ${OPT_DEF_LIBC})
-set_option(GCC_ATOMICS         "Use gcc builtin atomics" ${OPT_DEF_GCC_ATOMICS})
-set_option(ASSEMBLY            "Enable assembly routines" ${OPT_DEF_ASM})
-set_option(SSEMATH             "Allow GCC to use SSE floating point math" ${OPT_DEF_SSEMATH})
-set_option(MMX                 "Use MMX assembly routines" ${OPT_DEF_ASM})
-set_option(3DNOW               "Use 3Dnow! MMX assembly routines" ${OPT_DEF_ASM})
-set_option(SSE                 "Use SSE assembly routines" ${OPT_DEF_ASM})
-set_option(SSE2                "Use SSE2 assembly routines" ${OPT_DEF_SSEMATH})
-set_option(SSE3                "Use SSE3 assembly routines" ${OPT_DEF_SSEMATH})
-set_option(ALTIVEC             "Use Altivec assembly routines" ${OPT_DEF_ASM})
-set_option(ARMSIMD             "use SIMD assembly blitters on ARM" OFF)
-set_option(ARMNEON             "use NEON assembly blitters on ARM" OFF)
-set_option(DISKAUDIO           "Support the disk writer audio driver" ON)
-set_option(DUMMYAUDIO          "Support the dummy audio driver" ON)
-set_option(VIDEO_DIRECTFB      "Use DirectFB video driver" OFF)
-dep_option(DIRECTFB_SHARED     "Dynamically load directfb support" ON "VIDEO_DIRECTFB" OFF)
-set_option(VIDEO_DUMMY         "Use dummy video driver" ON)
-set_option(VIDEO_OPENGL        "Include OpenGL support" ON)
-set_option(VIDEO_OPENGLES      "Include OpenGL ES support" ON)
-set_option(PTHREADS            "Use POSIX threads for multi-threading" ${SDL_PTHREADS_ENABLED_BY_DEFAULT})
-dep_option(PTHREADS_SEM        "Use pthread semaphores" ON "PTHREADS" OFF)
-dep_option(OSS                 "Support the OSS audio API" ON "UNIX_SYS OR RISCOS" OFF)
-set_option(ALSA                "Support the ALSA audio API" ${UNIX_SYS})
-dep_option(ALSA_SHARED         "Dynamically load ALSA audio support" ON "ALSA" OFF)
-set_option(JACK                "Support the JACK audio API" ${UNIX_SYS})
-dep_option(JACK_SHARED         "Dynamically load JACK audio support" ON "JACK" OFF)
-set_option(ESD                 "Support the Enlightened Sound Daemon" ${UNIX_SYS})
-dep_option(ESD_SHARED          "Dynamically load ESD audio support" ON "ESD" OFF)
-set_option(PIPEWIRE            "Use Pipewire audio" ${UNIX_SYS})
-dep_option(PIPEWIRE_SHARED     "Dynamically load Pipewire support" ON "PIPEWIRE" OFF)
-set_option(PULSEAUDIO          "Use PulseAudio" ${UNIX_SYS})
-dep_option(PULSEAUDIO_SHARED   "Dynamically load PulseAudio support" ON "PULSEAUDIO" OFF)
-set_option(ARTS                "Support the Analog Real Time Synthesizer" ${UNIX_SYS})
-dep_option(ARTS_SHARED         "Dynamically load aRts audio support" ON "ARTS" OFF)
-set_option(NAS                 "Support the NAS audio API" ${UNIX_SYS})
-set_option(NAS_SHARED          "Dynamically load NAS audio API" ${UNIX_SYS})
-set_option(SNDIO               "Support the sndio audio API" ${UNIX_SYS})
-dep_option(SNDIO_SHARED        "Dynamically load the sndio audio API" ${UNIX_SYS} ON "SNDIO" OFF)
-set_option(FUSIONSOUND         "Use FusionSound audio driver" OFF)
-dep_option(FUSIONSOUND_SHARED  "Dynamically load fusionsound audio support" ON "FUSIONSOUND" OFF)
-set_option(LIBSAMPLERATE       "Use libsamplerate for audio rate conversion" ${UNIX_SYS})
-dep_option(LIBSAMPLERATE_SHARED "Dynamically load libsamplerate" ON "LIBSAMPLERATE" OFF)
-set_option(RPATH               "Use an rpath when linking SDL" ${UNIX_SYS})
-set_option(CLOCK_GETTIME       "Use clock_gettime() instead of gettimeofday()" OFF)
-set_option(VIDEO_X11           "Use X11 video driver" ${UNIX_SYS})
-set_option(VIDEO_WAYLAND       "Use Wayland video driver" ${UNIX_SYS})
-dep_option(WAYLAND_SHARED      "Dynamically load Wayland support" ON "VIDEO_WAYLAND" OFF)
-dep_option(WAYLAND_LIBDECOR    "Use client-side window decorations on Wayland" ON "VIDEO_WAYLAND" ON)
-dep_option(LIBDECOR_SHARED     "Dynamically load libdecor support" ON "WAYLAND_LIBDECOR" OFF)
-dep_option(VIDEO_WAYLAND_QT_TOUCH  "QtWayland server support for Wayland video driver" ON "VIDEO_WAYLAND" OFF)
-set_option(VIDEO_RPI           "Use Raspberry Pi video driver" ${UNIX_SYS})
-dep_option(X11_SHARED          "Dynamically load X11 support" ON "VIDEO_X11" OFF)
+option_string(SDL_ASSERTIONS "Enable internal sanity checks (auto/disabled/release/enabled/paranoid)" "auto")
+#set_option(SDL_DEPENDENCY_TRACKING "Use gcc -MMD -MT dependency tracking" ON)
+set_option(SDL_LIBC                "Use the system C library" ${OPT_DEF_LIBC})
+set_option(SDL_GCC_ATOMICS         "Use gcc builtin atomics" ${OPT_DEF_GCC_ATOMICS})
+set_option(SDL_ASSEMBLY            "Enable assembly routines" ${OPT_DEF_ASM})
+set_option(SDL_SSEMATH             "Allow GCC to use SSE floating point math" ${OPT_DEF_SSEMATH})
+set_option(SDL_MMX                 "Use MMX assembly routines" ${OPT_DEF_ASM})
+set_option(SDL_3DNOW               "Use 3Dnow! MMX assembly routines" ${OPT_DEF_ASM})
+set_option(SDL_SSE                 "Use SSE assembly routines" ${OPT_DEF_ASM})
+set_option(SDL_SSE2                "Use SSE2 assembly routines" ${OPT_DEF_SSEMATH})
+set_option(SDL_SSE3                "Use SSE3 assembly routines" ${OPT_DEF_SSEMATH})
+set_option(SDL_ALTIVEC             "Use Altivec assembly routines" ${OPT_DEF_ASM})
+set_option(SDL_ARMSIMD             "use SIMD assembly blitters on ARM" OFF)
+set_option(SDL_ARMNEON             "use NEON assembly blitters on ARM" OFF)
+set_option(SDL_DISKAUDIO           "Support the disk writer audio driver" ON)
+set_option(SDL_DUMMYAUDIO          "Support the dummy audio driver" ON)
+set_option(SDL_DIRECTFB            "Use DirectFB video driver" OFF)
+dep_option(SDL_DIRECTFB_SHARED     "Dynamically load directfb support" ON "SDL_DIRECTFB" OFF)
+set_option(SDL_DUMMYVIDEO          "Use dummy video driver" ON)
+set_option(SDL_OPENGL              "Include OpenGL support" ON)
+set_option(SDL_OPENGLES            "Include OpenGL ES support" ON)
+set_option(SDL_PTHREADS            "Use POSIX threads for multi-threading" ${SDL_PTHREADS_ENABLED_BY_DEFAULT})
+dep_option(SDL_PTHREADS_SEM        "Use pthread semaphores" ON "SDL_PTHREADS" OFF)
+dep_option(SDL_OSS                 "Support the OSS audio API" ON "UNIX_SYS OR RISCOS" OFF)
+set_option(SDL_ALSA                "Support the ALSA audio API" ${UNIX_SYS})
+dep_option(SDL_ALSA_SHARED         "Dynamically load ALSA audio support" ON "SDL_ALSA" OFF)
+set_option(SDL_JACK                "Support the JACK audio API" ${UNIX_SYS})
+dep_option(SDL_JACK_SHARED         "Dynamically load JACK audio support" ON "SDL_JACK" OFF)
+set_option(SDL_ESD                 "Support the Enlightened Sound Daemon" ${UNIX_SYS})
+dep_option(SDL_ESD_SHARED          "Dynamically load ESD audio support" ON "SDL_ESD" OFF)
+set_option(SDL_PIPEWIRE            "Use Pipewire audio" ${UNIX_SYS})
+dep_option(SDL_PIPEWIRE_SHARED     "Dynamically load Pipewire support" ON "SDL_PIPEWIRE" OFF)
+set_option(SDL_PULSEAUDIO          "Use PulseAudio" ${UNIX_SYS})
+dep_option(SDL_PULSEAUDIO_SHARED   "Dynamically load PulseAudio support" ON "SDL_PULSEAUDIO" OFF)
+set_option(SDL_ARTS                "Support the Analog Real Time Synthesizer" ${UNIX_SYS})
+dep_option(SDL_ARTS_SHARED         "Dynamically load aRts audio support" ON "SDL_ARTS" OFF)
+set_option(SDL_NAS                 "Support the NAS audio API" ${UNIX_SYS})
+dep_option(SDL_NAS_SHARED          "Dynamically load NAS audio support" ON "SDL_NAS" OFF)
+set_option(SDL_SNDIO               "Support the sndio audio API" ${UNIX_SYS})
+dep_option(SDL_SNDIO_SHARED        "Dynamically load the sndio audio API" ${UNIX_SYS} ON "SDL_SNDIO" OFF)
+set_option(SDL_FUSIONSOUND         "Use FusionSound audio driver" OFF)
+dep_option(SDL_FUSIONSOUND_SHARED  "Dynamically load fusionsound audio support" ON "SDL_FUSIONSOUND" OFF)
+set_option(SDL_LIBSAMPLERATE       "Use libsamplerate for audio rate conversion" ${UNIX_SYS})
+dep_option(SDL_LIBSAMPLERATE_SHARED "Dynamically load libsamplerate" ON "SDL_LIBSAMPLERATE" OFF)
+set_option(SDL_RPATH               "Use an rpath when linking SDL" ${UNIX_SYS})
+set_option(SDL_CLOCK_GETTIME       "Use clock_gettime() instead of gettimeofday()" OFF)
+set_option(SDL_X11                 "Use X11 video driver" ${UNIX_SYS})
+dep_option(SDL_X11_SHARED          "Dynamically load X11 support" ON "SDL_X11" OFF)
 set(SDL_X11_OPTIONS Xcursor Xinerama XInput Xrandr Xscrnsaver XShape Xvm)
 foreach(_SUB ${SDL_X11_OPTIONS})
-  string(TOUPPER "VIDEO_X11_${_SUB}" _OPT)
-  dep_option(${_OPT}           "Enable ${_SUB} support" ON "VIDEO_X11" OFF)
+  string(TOUPPER "SDL_X11_${_SUB}" _OPT)
+  dep_option(${_OPT}               "Enable ${_SUB} support" ON "SDL_X11" OFF)
 endforeach()
-set_option(VIDEO_COCOA         "Use Cocoa video driver" ${APPLE})
-set_option(DIRECTX             "Use DirectX for Windows audio/video" ${WINDOWS})
-set_option(XINPUT              "Use Xinput for Windows" ${WINDOWS})
-set_option(WASAPI              "Use the Windows WASAPI audio driver" ${WINDOWS})
-set_option(RENDER_D3D          "Enable the Direct3D render driver" ${WINDOWS})
-set_option(RENDER_METAL        "Enable the Metal render driver" ${APPLE})
-set_option(VIDEO_VIVANTE       "Use Vivante EGL video driver" ${UNIX_SYS})
-dep_option(VIDEO_VULKAN        "Enable Vulkan support" ON "ANDROID OR APPLE OR LINUX OR WINDOWS" OFF)
-set_option(VIDEO_METAL         "Enable Metal support" ${APPLE})
-set_option(VIDEO_KMSDRM        "Use KMS DRM video driver" ${UNIX_SYS})
-dep_option(KMSDRM_SHARED       "Dynamically load KMS DRM support" ON "VIDEO_KMSDRM" OFF)
-set_option(VIDEO_OFFSCREEN     "Use offscreen video driver" OFF)
-option_string(BACKGROUNDING_SIGNAL "number to use for magic backgrounding signal or 'OFF'" "OFF")
-option_string(FOREGROUNDING_SIGNAL "number to use for magic foregrounding signal or 'OFF'" "OFF")
-set_option(HIDAPI              "Use HIDAPI for low level joystick drivers" ${OPT_DEF_HIDAPI})
-set_option(JOYSTICK_VIRTUAL    "Enable the virtual-joystick driver" ON)
-set_option(ASAN                "Use AddressSanitizer to detect memory errors" OFF)
+set_option(SDL_WAYLAND             "Use Wayland video driver" ${UNIX_SYS})
+dep_option(SDL_WAYLAND_SHARED      "Dynamically load Wayland support" ON "SDL_WAYLAND" OFF)
+dep_option(SDL_WAYLAND_LIBDECOR    "Use client-side window decorations on Wayland" ON "SDL_WAYLAND" ON)
+dep_option(SDL_WAYLAND_LIBDECOR_SHARED     "Dynamically load libdecor support" ON "SDL_WAYLAND_LIBDECOR" OFF)
+dep_option(SDL_WAYLAND_QT_TOUCH    "QtWayland server support for Wayland video driver" ON "SDL_WAYLAND" OFF)
+set_option(SDL_RPI                 "Use Raspberry Pi video driver" ${UNIX_SYS})
+set_option(SDL_COCOA               "Use Cocoa video driver" ${APPLE})
+set_option(SDL_DIRECTX             "Use DirectX for Windows audio/video" ${WINDOWS})
+set_option(SDL_XINPUT              "Use Xinput for Windows" ${WINDOWS})
+set_option(SDL_WASAPI              "Use the Windows WASAPI audio driver" ${WINDOWS})
+set_option(SDL_RENDER_D3D          "Enable the Direct3D render driver" ${WINDOWS})
+set_option(SDL_RENDER_METAL        "Enable the Metal render driver" ${APPLE})
+set_option(SDL_VIVANTE             "Use Vivante EGL video driver" ${UNIX_SYS})
+dep_option(SDL_VULKAN              "Enable Vulkan support" ON "ANDROID OR APPLE OR LINUX OR WINDOWS" OFF)
+set_option(SDL_METAL               "Enable Metal support" ${APPLE})
+set_option(SDL_KMSDRM              "Use KMS DRM video driver" ${UNIX_SYS})
+dep_option(SDL_KMSDRM_SHARED       "Dynamically load KMS DRM support" ON "SDL_KMSDRM" OFF)
+set_option(SDL_OFFSCREEN           "Use offscreen video driver" OFF)
+option_string(SDL_BACKGROUNDING_SIGNAL "number to use for magic backgrounding signal or 'OFF'" "OFF")
+option_string(SDL_FOREGROUNDING_SIGNAL "number to use for magic foregrounding signal or 'OFF'" "OFF")
+set_option(SDL_HIDAPI              "Use HIDAPI for low level joystick drivers" ${OPT_DEF_HIDAPI})
+set_option(SDL_VIRTUAL_JOYSTICK    "Enable the virtual-joystick driver" ON)
+set_option(SDL_ASAN                "Use AddressSanitizer to detect memory errors" OFF)
 
 set(SDL_SHARED ${SDL_SHARED_ENABLED_BY_DEFAULT} CACHE BOOL "Build a shared version of the library")
 set(SDL_STATIC ${SDL_STATIC_ENABLED_BY_DEFAULT} CACHE BOOL "Build a static version of the library")
@@ -436,27 +436,27 @@ file(GLOB SOURCE_FILES
   ${SDL2_SOURCE_DIR}/src/video/yuv2rgb/*.c)
 
 
-if(ASSERTIONS STREQUAL "auto")
+if(SDL_ASSERTIONS STREQUAL "auto")
   # Do nada - use optimization settings to determine the assertion level
-elseif(ASSERTIONS STREQUAL "disabled")
+elseif(SDL_ASSERTIONS STREQUAL "disabled")
   set(SDL_DEFAULT_ASSERT_LEVEL 0)
-elseif(ASSERTIONS STREQUAL "release")
+elseif(SDL_ASSERTIONS STREQUAL "release")
   set(SDL_DEFAULT_ASSERT_LEVEL 1)
-elseif(ASSERTIONS STREQUAL "enabled")
+elseif(SDL_ASSERTIONS STREQUAL "enabled")
   set(SDL_DEFAULT_ASSERT_LEVEL 2)
-elseif(ASSERTIONS STREQUAL "paranoid")
+elseif(SDL_ASSERTIONS STREQUAL "paranoid")
   set(SDL_DEFAULT_ASSERT_LEVEL 3)
 else()
   message_error("unknown assertion level")
 endif()
-set(HAVE_ASSERTIONS ${ASSERTIONS})
+set(HAVE_ASSERTIONS ${SDL_ASSERTIONS})
 
-if(NOT BACKGROUNDING_SIGNAL STREQUAL "OFF")
-  add_definitions("-DSDL_BACKGROUNDING_SIGNAL=${BACKGROUNDING_SIGNAL}")
+if(NOT SDL_BACKGROUNDING_SIGNAL STREQUAL "OFF")
+  add_definitions("-DSDL_BACKGROUNDING_SIGNAL=${SDL_BACKGROUNDING_SIGNAL}")
 endif()
 
-if(NOT FOREGROUNDING_SIGNAL STREQUAL "OFF")
-  add_definitions("-DSDL_FOREGROUNDING_SIGNAL=${FOREGROUNDING_SIGNAL}")
+if(NOT SDL_FOREGROUNDING_SIGNAL STREQUAL "OFF")
+  add_definitions("-DSDL_FOREGROUNDING_SIGNAL=${SDL_FOREGROUNDING_SIGNAL}")
 endif()
 
 # Compiler option evaluation
@@ -492,7 +492,7 @@ if(USE_GCC OR USE_CLANG)
         int main(int argc, char **argv) { }" HAVE_DEPENDENCY_TRACKING)
   endif()
 
-  if(GCC_ATOMICS)
+  if(SDL_GCC_ATOMICS)
     check_c_source_compiles("int main(int argc, char **argv) {
         int a;
         void *x, *y, *z;
@@ -553,7 +553,7 @@ if(USE_GCC OR USE_CLANG)
   endif()
 endif()
 
-if(ASSEMBLY)
+if(SDL_ASSEMBLY)
   if(USE_GCC OR USE_CLANG)
     set(SDL_ASSEMBLY_ROUTINES 1)
     # TODO: Those all seem to be quite GCC specific - needs to be
@@ -582,7 +582,7 @@ if(ASSEMBLY)
       set(CMAKE_REQUIRED_FLAGS ${ORIG_CMAKE_REQUIRED_FLAGS})
     endif()
 
-    if(3DNOW)
+    if(SDL_3DNOW)
       set(CMAKE_REQUIRED_FLAGS "-m3dnow")
       check_c_source_compiles("
           #include <mm3dnow.h>
@@ -599,7 +599,7 @@ if(ASSEMBLY)
       set(CMAKE_REQUIRED_FLAGS ${ORIG_CMAKE_REQUIRED_FLAGS})
     endif()
 
-    if(SSE)
+    if(SDL_SSE)
       set(CMAKE_REQUIRED_FLAGS "-msse")
       check_c_source_compiles("
           #ifdef __MINGW32__
@@ -622,7 +622,7 @@ if(ASSEMBLY)
       set(CMAKE_REQUIRED_FLAGS ${ORIG_CMAKE_REQUIRED_FLAGS})
     endif()
 
-    if(SSE2)
+    if(SDL_SSE2)
       set(CMAKE_REQUIRED_FLAGS "-msse2")
       check_c_source_compiles("
           #ifdef __MINGW32__
@@ -645,7 +645,7 @@ if(ASSEMBLY)
       set(CMAKE_REQUIRED_FLAGS ${ORIG_CMAKE_REQUIRED_FLAGS})
     endif()
 
-    if(SSE3)
+    if(SDL_SSE3)
       set(CMAKE_REQUIRED_FLAGS "-msse3")
       check_c_source_compiles("
           #ifdef __MINGW32__
@@ -668,8 +668,8 @@ if(ASSEMBLY)
       set(CMAKE_REQUIRED_FLAGS ${ORIG_CMAKE_REQUIRED_FLAGS})
     endif()
 
-    if(NOT SSEMATH)
-      if(SSE OR SSE2 OR SSE3)
+    if(NOT SDL_SSEMATH)
+      if(SDL_SSE OR SDL_SSE2 OR SDL_SSE3)
         if(USE_GCC)
           check_c_compiler_flag(-mfpmath=387 HAVE_FP_387)
           if(HAVE_FP_387)
@@ -682,7 +682,7 @@ if(ASSEMBLY)
 
     check_include_file("immintrin.h" HAVE_IMMINTRIN_H)
 
-    if(ALTIVEC)
+    if(SDL_ALTIVEC)
       set(CMAKE_REQUIRED_FLAGS "-maltivec")
       check_c_source_compiles("
           #include <altivec.h>
@@ -706,7 +706,7 @@ if(ASSEMBLY)
       endif()
     endif()
 
-    if(ARMSIMD)
+    if(SDL_ARMSIMD)
       set(ORIG_CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS}")
       set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -x assembler-with-cpp")
       check_c_source_compiles("
@@ -732,7 +732,7 @@ if(ASSEMBLY)
       endif()
     endif()
 
-    if(ARMNEON)
+    if(SDL_ARMNEON)
       set(ORIG_CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS}")
       set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -x assembler-with-cpp")
       check_c_source_compiles("
@@ -777,7 +777,7 @@ endif()
 
 # TODO: Can't deactivate on FreeBSD? w/o LIBC, SDL_stdinc.h can't define
 # anything.
-if(LIBC)
+if(SDL_LIBC)
   if(WINDOWS AND NOT MINGW)
     set(HAVE_LIBC TRUE)
     foreach(_HEADER stdio.h string.h wchar.h ctype.h math.h limits.h)
@@ -920,13 +920,13 @@ endif()
 # General SDL subsystem options, valid for all platforms
 if(SDL_AUDIO)
   # CheckDummyAudio/CheckDiskAudio - valid for all platforms
-  if(DUMMYAUDIO)
+  if(SDL_DUMMYAUDIO)
     set(SDL_AUDIO_DRIVER_DUMMY 1)
     file(GLOB DUMMYAUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/dummy/*.c)
     set(SOURCE_FILES ${SOURCE_FILES} ${DUMMYAUDIO_SOURCES})
     set(HAVE_DUMMYAUDIO TRUE)
   endif()
-  if(DISKAUDIO)
+  if(SDL_DISKAUDIO)
     set(SDL_AUDIO_DRIVER_DISK 1)
     file(GLOB DISKAUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/disk/*.c)
     set(SOURCE_FILES ${SOURCE_FILES} ${DISKAUDIO_SOURCES})
@@ -947,7 +947,8 @@ if(UNIX OR APPLE)
 endif()
 
 if(SDL_JOYSTICK)
-  if(JOYSTICK_VIRTUAL)
+  if(SDL_VIRTUAL_JOYSTICK)
+    set(HAVE_VIRTUAL_JOYSTICK TRUE)
     set(SDL_JOYSTICK_VIRTUAL 1)
     file(GLOB JOYSTICK_VIRTUAL_SOURCES ${SDL2_SOURCE_DIR}/src/joystick/virtual/*.c)
     set(SOURCE_FILES ${SOURCE_FILES} ${JOYSTICK_VIRTUAL_SOURCES})
@@ -955,18 +956,18 @@ if(SDL_JOYSTICK)
 endif()
 
 if(SDL_VIDEO)
-  if(VIDEO_DUMMY)
+  if(SDL_DUMMYVIDEO)
     set(SDL_VIDEO_DRIVER_DUMMY 1)
     file(GLOB VIDEO_DUMMY_SOURCES ${SDL2_SOURCE_DIR}/src/video/dummy/*.c)
     set(SOURCE_FILES ${SOURCE_FILES} ${VIDEO_DUMMY_SOURCES})
-    set(HAVE_VIDEO_DUMMY TRUE)
+    set(HAVE_DUMMY TRUE)
     set(HAVE_SDL_VIDEO TRUE)
   endif()
-  if(VIDEO_OFFSCREEN)
+  if(SDL_OFFSCREEN)
     set(SDL_VIDEO_DRIVER_OFFSCREEN 1)
     file(GLOB VIDEO_OFFSCREEN_SOURCES ${SDL2_SOURCE_DIR}/src/video/offscreen/*.c)
     set(SOURCE_FILES ${SOURCE_FILES} ${VIDEO_OFFSCREEN_SOURCES})
-    set(HAVE_VIDEO_OFFSCREEN TRUE)
+    set(HAVE_OFFSCREEN TRUE)
     set(HAVE_SDL_VIDEO TRUE)
   endif()
 endif()
@@ -1078,9 +1079,9 @@ if(ANDROID)
     endif()
 
     #enable gles
-    if(VIDEO_OPENGLES)
+    if(SDL_OPENGLES)
       set(SDL_VIDEO_OPENGL_EGL 1)
-      set(HAVE_VIDEO_OPENGLES TRUE)
+      set(HAVE_OPENGLES TRUE)
       set(SDL_VIDEO_OPENGL_ES 1)
       set(SDL_VIDEO_RENDER_OGL_ES 1)
       set(SDL_VIDEO_OPENGL_ES2 1)
@@ -1101,7 +1102,7 @@ if(ANDROID)
     }
     " VULKAN_PASSED_ANDROID_CHECKS)
     if(NOT VULKAN_PASSED_ANDROID_CHECKS)
-      set(VIDEO_VULKAN OFF)
+      set(SDL_VULKAN OFF)
       message(STATUS "Vulkan doesn't work on this configuration")
     endif()
   endif()
@@ -1147,7 +1148,7 @@ elseif(EMSCRIPTEN)
     set(SOURCE_FILES ${SOURCE_FILES} ${TIMER_SOURCES})
     set(HAVE_SDL_TIMERS TRUE)
 
-    if(CLOCK_GETTIME)
+    if(SDL_CLOCK_GETTIME)
       set(HAVE_CLOCK_GETTIME 1)
     endif()
   endif()
@@ -1158,9 +1159,9 @@ elseif(EMSCRIPTEN)
     set(HAVE_SDL_VIDEO TRUE)
 
     #enable gles
-    if(VIDEO_OPENGLES)
+    if(SDL_OPENGLES)
       set(SDL_VIDEO_OPENGL_EGL 1)
-      set(HAVE_VIDEO_OPENGLES TRUE)
+      set(HAVE_OPENGLES TRUE)
       set(SDL_VIDEO_OPENGL_ES2 1)
       set(SDL_VIDEO_RENDER_OGL_ES2 1)
     endif()
@@ -1366,7 +1367,7 @@ elseif(UNIX AND NOT APPLE AND NOT ANDROID AND NOT RISCOS AND NOT HAIKU)
 
   CheckPTHREAD()
 
-  if(CLOCK_GETTIME)
+  if(SDL_CLOCK_GETTIME)
     check_library_exists(rt clock_gettime "" FOUND_CLOCK_GETTIME)
     if(FOUND_CLOCK_GETTIME)
       list(APPEND EXTRA_LIBS rt)
@@ -1418,7 +1419,7 @@ elseif(UNIX AND NOT APPLE AND NOT ANDROID AND NOT RISCOS AND NOT HAIKU)
   endif()
 
   set(SDL_RLD_FLAGS "")
-  if(RPATH AND SDL_SHARED)
+  if(SDL_RPATH AND SDL_SHARED)
     if(BSDI OR FREEBSD OR LINUX OR NETBSD)
       set(CMAKE_REQUIRED_FLAGS "-Wl,--enable-new-dtags")
       check_c_compiler_flag("" HAVE_ENABLE_NEW_DTAGS)
@@ -1468,7 +1469,7 @@ elseif(WINDOWS)
   set(HAVE_SDL_MISC TRUE)
 
   # Check for DirectX
-  if(DIRECTX)
+  if(SDL_DIRECTX)
     if(DEFINED MSVC_VERSION AND NOT ${MSVC_VERSION} LESS 1700)
         set(USE_WINSDK_DIRECTX TRUE)
     endif()
@@ -1499,7 +1500,7 @@ elseif(WINDOWS)
     set(CMAKE_REQUIRED_FLAGS ${ORIG_CMAKE_REQUIRED_FLAGS})
   endif()
 
-  if(XINPUT)
+  if(SDL_XINPUT)
     # xinput.h may need windows.h, but does not include it itself.
     check_c_source_compiles("
       #include <windows.h>
@@ -1536,7 +1537,7 @@ elseif(WINDOWS)
       set(SOURCE_FILES ${SOURCE_FILES} ${DSOUND_AUDIO_SOURCES})
     endif()
 
-    if(WASAPI AND HAVE_AUDIOCLIENT_H AND HAVE_MMDEVICEAPI_H)
+    if(SDL_WASAPI AND HAVE_AUDIOCLIENT_H AND HAVE_MMDEVICEAPI_H)
       set(SDL_AUDIO_DRIVER_WASAPI 1)
       file(GLOB WASAPI_AUDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/wasapi/*.c)
       if(WINDOWS_STORE)
@@ -1564,11 +1565,11 @@ elseif(WINDOWS)
     endif()
     set(SOURCE_FILES ${SOURCE_FILES} ${WIN_VIDEO_SOURCES})
 
-    if(RENDER_D3D AND HAVE_D3D_H AND NOT WINDOWS_STORE)
+    if(SDL_RENDER_D3D AND HAVE_D3D_H AND NOT WINDOWS_STORE)
       set(SDL_VIDEO_RENDER_D3D 1)
       set(HAVE_RENDER_D3D TRUE)
     endif()
-    if(RENDER_D3D AND HAVE_D3D11_H)
+    if(SDL_RENDER_D3D AND HAVE_D3D11_H)
       set(SDL_VIDEO_RENDER_D3D11 1)
       set(HAVE_RENDER_D3D TRUE)
     endif()
@@ -1661,18 +1662,18 @@ elseif(WINDOWS)
   set(SOURCE_FILES ${SOURCE_FILES} ${CORE_SOURCES})
 
   if(SDL_VIDEO)
-    if(VIDEO_OPENGL AND NOT WINDOWS_STORE)
+    if(SDL_OPENGL AND NOT WINDOWS_STORE)
       set(SDL_VIDEO_OPENGL 1)
       set(SDL_VIDEO_OPENGL_WGL 1)
       set(SDL_VIDEO_RENDER_OGL 1)
-      set(HAVE_VIDEO_OPENGL TRUE)
+      set(HAVE_OPENGL TRUE)
     endif()
 
-    if(VIDEO_OPENGLES)
+    if(SDL_OPENGLES)
       set(SDL_VIDEO_OPENGL_EGL 1)
       set(SDL_VIDEO_OPENGL_ES2 1)
       set(SDL_VIDEO_RENDER_OGL_ES2 1)
-      set(HAVE_VIDEO_OPENGLES TRUE)
+      set(HAVE_OPENGLES TRUE)
     endif()
   endif()
 
@@ -1875,15 +1876,15 @@ elseif(APPLE)
       set(SOURCE_FILES ${SOURCE_FILES} ${UIKITVIDEO_SOURCES})
     else()
       CheckCOCOA()
-      if(VIDEO_OPENGL)
+      if(SDL_OPENGL)
         set(SDL_VIDEO_OPENGL 1)
         set(SDL_VIDEO_OPENGL_CGL 1)
         set(SDL_VIDEO_RENDER_OGL 1)
-        set(HAVE_VIDEO_OPENGL TRUE)
+        set(HAVE_OPENGL TRUE)
       endif()
     endif()
 
-    if(VIDEO_OPENGLES)
+    if(SDL_OPENGLES)
       if(IOS OR TVOS)
         set(SDL_FRAMEWORK_OPENGLES 1)
         set(SDL_VIDEO_OPENGL_ES 1)
@@ -1893,10 +1894,10 @@ elseif(APPLE)
       endif()
       set(SDL_VIDEO_OPENGL_ES2 1)
       set(SDL_VIDEO_RENDER_OGL_ES2 1)
-      set(HAVE_VIDEO_OPENGLES TRUE)
+      set(HAVE_OPENGLES TRUE)
     endif()
 
-    if(VIDEO_VULKAN OR VIDEO_METAL OR RENDER_METAL)
+    if(SDL_VULKAN OR SDL_METAL OR SDL_RENDER_METAL)
       set(ORIG_CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS})
       set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -ObjC")
       check_c_source_compiles("
@@ -1917,18 +1918,18 @@ elseif(APPLE)
         set(SDL_FRAMEWORK_METAL 1)
         set(SDL_FRAMEWORK_QUARTZCORE 1)
       else()
-        set(VIDEO_VULKAN 0)
-        set(VIDEO_METAL 0)
-        set(RENDER_METAL 0)
+        set(SDL_VULKAN 0)
+        set(SDL_METAL 0)
+        set(SDL_RENDER_METAL 0)
       endif()
     endif()
 
-    if(VIDEO_METAL)
+    if(SDL_METAL)
       set(SDL_VIDEO_METAL 1)
-      set(HAVE_VIDEO_METAL TRUE)
+      set(HAVE_METAL TRUE)
     endif()
 
-    if(RENDER_METAL)
+    if(SDL_RENDER_METAL)
       file(GLOB RENDER_METAL_SOURCES ${SDL2_SOURCE_DIR}/src/render/metal/*.m)
       set(SOURCE_FILES ${SOURCE_FILES} ${RENDER_METAL_SOURCES})
       set(SDL_VIDEO_RENDER_METAL 1)
@@ -2047,13 +2048,13 @@ elseif(HAIKU)
     set(SOURCE_FILES ${SOURCE_FILES} ${HAIKUVIDEO_SOURCES})
     set(HAVE_SDL_VIDEO TRUE)
 
-    if(VIDEO_OPENGL)
+    if(SDL_OPENGL)
       # TODO: Use FIND_PACKAGE(OpenGL) instead
       set(SDL_VIDEO_OPENGL 1)
       set(SDL_VIDEO_OPENGL_HAIKU 1)
       set(SDL_VIDEO_RENDER_OGL 1)
       list(APPEND EXTRA_LIBS GL)
-      set(HAVE_VIDEO_OPENGL TRUE)
+      set(HAVE_OPENGL TRUE)
     endif()
   endif()
 
@@ -2101,7 +2102,7 @@ elseif(RISCOS)
     set(SOURCE_FILES ${SOURCE_FILES} ${TIMER_SOURCES})
     set(HAVE_SDL_TIMERS TRUE)
 
-    if(CLOCK_GETTIME)
+    if(SDL_CLOCK_GETTIME)
       set(HAVE_CLOCK_GETTIME 1)
     endif()
   endif()
@@ -2183,10 +2184,10 @@ elseif(VITA)
         list(APPEND EXTRA_LIBS
           pib
         )
-        set(HAVE_VIDEO_VITA_PIB ON)
+        set(HAVE_VITA_PIB ON)
         set(SDL_VIDEO_VITA_PIB 1)
       else()
-        set(HAVE_VIDEO_VITA_PIB OFF)
+        set(HAVE_VITA_PIB OFF)
       endif()
     endif()
 
@@ -2196,7 +2197,7 @@ elseif(VITA)
       if(HAVE_PVR_H)
         add_definitions("-D__psp2__")
         set(SDL_VIDEO_OPENGL_EGL 1)
-        set(HAVE_VIDEO_OPENGLES TRUE)
+        set(HAVE_OPENGLES TRUE)
         set(SDL_VIDEO_OPENGL_ES 1)
         set(SDL_VIDEO_RENDER_OGL_ES 1)
         set(SDL_VIDEO_OPENGL_ES2 1)
@@ -2206,10 +2207,10 @@ elseif(VITA)
           libgpu_es4_ext_stub_weak
           libIMGEGL_stub_weak
         )
-        set(HAVE_VIDEO_VITA_PVR ON)
+        set(HAVE_VITA_PVR ON)
         set(SDL_VIDEO_VITA_PVR 1)
       else()
-        set(HAVE_VIDEO_VITA_PVR OFF)
+        set(HAVE_VITA_PVR OFF)
       endif()
     endif()
 
@@ -2233,7 +2234,7 @@ elseif(VITA)
       SceProcessmgr_stub
       m
     )
-    if(HAVE_VIDEO_VITA_PIB)
+    if(HAVE_VITA_PIB)
         list(PREPEND EXTRA_LIBS
           pib
           libScePiglet_stub
@@ -2267,14 +2268,14 @@ elseif(VITA)
 
 endif()
 
-if(VIDEO_VULKAN AND NOT SDL_LOADSO)
+if(SDL_VULKAN AND NOT SDL_LOADSO)
   message(STATUS "Vulkan support is available, but disabled because there's no loadso.")
-  set(VIDEO_VULKAN OFF)
+  set(SDL_VULKAN OFF)
 endif()
 
-if(VIDEO_VULKAN)
+if(SDL_VULKAN)
   set(SDL_VIDEO_VULKAN 1)
-  set(HAVE_VIDEO_VULKAN TRUE)
+  set(HAVE_VULKAN TRUE)
 endif()
 
 # Dummies
@@ -2494,7 +2495,7 @@ macro(asan_check_add_debug_flag2 ASAN_FLAG)
 endmacro()
 
 # enable AddressSanitizer if supported
-if (ASAN)
+if (SDL_ASAN)
   asan_check_add_debug_flag2("address")
   asan_check_add_debug_flag("bool")
   asan_check_add_debug_flag("bounds")
@@ -2532,10 +2533,10 @@ message(STATUS "")
 message(STATUS "Options:")
 list(SORT ALLOPTIONS)
 foreach(_OPT ${ALLOPTIONS})
-  # Longest option is VIDEO_X11_XSCREENSAVER = 22 characters
+  # Longest option is SDL_WAYLAND_LIBDECOR_SHARED = 27 characters
   # Get the padding
   string(LENGTH ${_OPT} _OPTLEN)
-  math(EXPR _PADLEN "23 - ${_OPTLEN}")
+  math(EXPR _PADLEN "28 - ${_OPTLEN}")
   string(RANDOM LENGTH ${_PADLEN} ALPHABET " " _PADDING)
   message_tested_option(${_OPT} ${_PADDING})
 endforeach()
@@ -2569,7 +2570,7 @@ if(WARN_ABOUT_ARM_SIMD_ASM_MIT)
   message(STATUS "uses code licensed under the MIT license. If this is a")
   message(STATUS "problem, please disable that code by rerunning CMake with:")
   message(STATUS "")
-  message(STATUS "    -DARMSIMD=OFF")
+  message(STATUS "    -DSDL_ARMSIMD=OFF")
 endif()
 
 if(WARN_ABOUT_ARM_NEON_ASM_MIT)
@@ -2578,7 +2579,7 @@ if(WARN_ABOUT_ARM_NEON_ASM_MIT)
   message(STATUS "uses code licensed under the MIT license. If this is a")
   message(STATUS "problem, please disable that code by rerunning CMake with:")
   message(STATUS "")
-  message(STATUS "    -DARMNEON=OFF")
+  message(STATUS "    -DSDL_ARMNEON=OFF")
 endif()
 
 # Ensure that the extra cflags are used at compile time
@@ -2623,7 +2624,7 @@ if(SDL_SHARED)
       SOVERSION ${LT_REVISION}
       OUTPUT_NAME "SDL2")
   endif()
-  if(MSVC AND NOT LIBC)
+  if(MSVC AND NOT SDL_LIBC)
     # Don't try to link with the default set of libraries.
     if(NOT WINDOWS_STORE)
       set_target_properties(SDL2 PROPERTIES LINK_FLAGS_RELEASE "/NODEFAULTLIB")
@@ -2651,7 +2652,7 @@ if(ANDROID)
     add_library(SDL2::hidapi ALIAS hidapi)
   endif()
 
-  if(MSVC AND NOT LIBC)
+  if(MSVC AND NOT SDL_LIBC)
     # Don't try to link with the default set of libraries.
     set_target_properties(hidapi PROPERTIES LINK_FLAGS_RELEASE "/NODEFAULTLIB")
     set_target_properties(hidapi PROPERTIES LINK_FLAGS_DEBUG "/NODEFAULTLIB")
@@ -2675,7 +2676,7 @@ if(SDL_STATIC)
     # clobbered, when the suffix is realized via subsequent rename.
   endif()
   set_target_properties(SDL2-static PROPERTIES POSITION_INDEPENDENT_CODE ${SDL_STATIC_PIC})
-  if(MSVC AND NOT LIBC)
+  if(MSVC AND NOT SDL_LIBC)
     set_target_properties(SDL2-static PROPERTIES LINK_FLAGS_RELEASE "/NODEFAULTLIB")
     set_target_properties(SDL2-static PROPERTIES LINK_FLAGS_DEBUG "/NODEFAULTLIB")
     set_target_properties(SDL2-static PROPERTIES STATIC_LIBRARY_FLAGS "/NODEFAULTLIB")

build-scripts/checker-buildbot.sh

@@ -27,7 +27,7 @@ cd checker-buildbot
 # The -Wno-liblto is new since our checker-279 upgrade, I think; checker otherwise warns "libLTO.dylib relative to clang installed dir not found"
 
 # You might want to do this for CMake-backed builds instead...
-scan-build -o analysis cmake -G Ninja -Wno-dev -DSDL_STATIC=OFF -DCMAKE_BUILD_TYPE=Debug -DASSERTIONS=enabled -DCMAKE_C_FLAGS="-Wno-deprecated-declarations" -DCMAKE_SHARED_LINKER_FLAGS="-Wno-liblto" ..
+scan-build -o analysis cmake -G Ninja -Wno-dev -DSDL_STATIC=OFF -DCMAKE_BUILD_TYPE=Debug -DSDL_ASSERTIONS=enabled -DCMAKE_C_FLAGS="-Wno-deprecated-declarations" -DCMAKE_SHARED_LINKER_FLAGS="-Wno-liblto" ..
 
 # ...or run configure without the scan-build wrapper...
 #CC="$CHECKERDIR/libexec/ccc-analyzer" CFLAGS="-O0 -Wno-deprecated-declarations" LDFLAGS="-Wno-liblto" ../configure --enable-assertions=enabled

build-scripts/codechecker-buildbot.sh

@@ -24,7 +24,7 @@ mkdir codechecker-buildbot
 cd codechecker-buildbot
 
 # We turn off deprecated declarations, because we don't care about these warnings during static analysis.
-cmake -Wno-dev -DSDL_STATIC=OFF -DCMAKE_BUILD_TYPE=Debug -DASSERTIONS=enabled -DCMAKE_C_FLAGS="-Wno-deprecated-declarations" -DCMAKE_EXPORT_COMPILE_COMMANDS=1 ..
+cmake -Wno-dev -DSDL_STATIC=OFF -DCMAKE_BUILD_TYPE=Debug -DSDL_ASSERTIONS=enabled -DCMAKE_C_FLAGS="-Wno-deprecated-declarations" -DCMAKE_EXPORT_COMPILE_COMMANDS=1 ..
 
 # CMake on macOS adds "-arch arm64" or whatever is appropriate, but this confuses CodeChecker, so strip it out.
 perl -w -pi -e 's/\-arch\s+.*?\s+//g;' compile_commands.json

cmake/macros.cmake

@@ -42,12 +42,18 @@ macro(MESSAGE_TESTED_OPTION _NAME)
   if(${ARGC} EQUAL 2)
     set(_PAD ${ARGV1})
   endif()
-  if(NOT HAVE_${_NAME})
-    set(HAVE_${_NAME} OFF)
-  elseif("${HAVE_${_NAME}}" MATCHES "1|TRUE|YES|Y")
-    set(HAVE_${_NAME} ON)
+  string(SUBSTRING "${_NAME}" 0 4 _NAMESTART)
+  if(_NAMESTART STREQUAL "SDL_")
+    string(SUBSTRING "${_NAME}" 4 -1 _STRIPPEDNAME)
+  else()
+    set(_STRIPPEDNAME "${_NAME}")
+  endif()
+  if(NOT HAVE_${_STRIPPEDNAME})
+    set(HAVE_${_STRIPPEDNAME} OFF)
+  elseif("${HAVE_${_STRIPPEDNAME}}" MATCHES "1|TRUE|YES|Y")
+    set(HAVE_${_STRIPPEDNAME} ON)
   endif()
-  message(STATUS "  ${_NAME}${_PAD}(Wanted: ${_REQVALUE}): ${HAVE_${_NAME}}")
+  message(STATUS "  ${_NAME}${_PAD}(Wanted: ${_REQVALUE}): ${HAVE_${_STRIPPEDNAME}}")
 endmacro()
 
 macro(LISTTOSTR _LIST _OUTPUT)

cmake/sdlchecks.cmake

@@ -57,7 +57,7 @@ endmacro()
 # Requires:
 # - n/a
 macro(CheckOSS)
-  if(OSS)
+  if(SDL_OSS)
     set(OSS_HEADER_FILE "sys/soundcard.h")
     check_c_source_compiles("
         #include <sys/soundcard.h>
@@ -88,10 +88,10 @@ endmacro()
 # Requires:
 # - n/a
 # Optional:
-# - ALSA_SHARED opt
+# - SDL_ALSA_SHARED opt
 # - HAVE_SDL_LOADSO opt
 macro(CheckALSA)
-  if(ALSA)
+  if(SDL_ALSA)
     CHECK_INCLUDE_FILE(alsa/asoundlib.h HAVE_ASOUNDLIB_H)
     if(HAVE_ASOUNDLIB_H)
       CHECK_LIBRARY_EXISTS(asound snd_pcm_recover "" HAVE_LIBASOUND)
@@ -101,10 +101,10 @@ macro(CheckALSA)
       file(GLOB ALSA_SOURCES ${SDL2_SOURCE_DIR}/src/audio/alsa/*.c)
       set(SOURCE_FILES ${SOURCE_FILES} ${ALSA_SOURCES})
       set(SDL_AUDIO_DRIVER_ALSA 1)
-      if(ALSA_SHARED AND NOT HAVE_SDL_LOADSO)
+      if(SDL_ALSA_SHARED AND NOT HAVE_SDL_LOADSO)
         message_warn("You must have SDL_LoadObject() support for dynamic ALSA loading")
       endif()
-      if(ALSA_SHARED AND HAVE_SDL_LOADSO)
+      if(SDL_ALSA_SHARED AND HAVE_SDL_LOADSO)
         FindLibraryAndSONAME("asound")
         set(SDL_AUDIO_DRIVER_ALSA_DYNAMIC "\"${ASOUND_LIB_SONAME}\"")
         set(HAVE_ALSA_SHARED TRUE)
@@ -119,10 +119,10 @@ endmacro()
 # Requires:
 # - PkgCheckModules
 # Optional:
-# - PIPEWIRE_SHARED opt
+# - SDL_PIPEWIRE_SHARED opt
 # - HAVE_SDL_LOADSO opt
 macro(CheckPipewire)
-    if(PIPEWIRE)
+    if(SDL_PIPEWIRE)
         pkg_check_modules(PKG_PIPEWIRE libpipewire-0.3>=0.3.20)
         if(PKG_PIPEWIRE_FOUND)
             set(HAVE_PIPEWIRE TRUE)
@@ -130,10 +130,10 @@ macro(CheckPipewire)
             set(SOURCE_FILES ${SOURCE_FILES} ${PIPEWIRE_SOURCES})
             set(SDL_AUDIO_DRIVER_PIPEWIRE 1)
             list(APPEND EXTRA_CFLAGS ${PKG_PIPEWIRE_CFLAGS})
-            if(PIPEWIRE_SHARED AND NOT HAVE_SDL_LOADSO)
+            if(SDL_PIPEWIRE_SHARED AND NOT HAVE_SDL_LOADSO)
                 message_warn("You must have SDL_LoadObject() support for dynamic Pipewire loading")
             endif()
-            if(PIPEWIRE_SHARED AND HAVE_SDL_LOADSO)
+            if(SDL_PIPEWIRE_SHARED AND HAVE_SDL_LOADSO)
                 FindLibraryAndSONAME("pipewire-0.3")
                 set(SDL_AUDIO_DRIVER_PIPEWIRE_DYNAMIC "\"${PIPEWIRE_0.3_LIB_SONAME}\"")
                 set(HAVE_PIPEWIRE_SHARED TRUE)
@@ -149,10 +149,10 @@ endmacro()
 # Requires:
 # - PkgCheckModules
 # Optional:
-# - PULSEAUDIO_SHARED opt
+# - SDL_PULSEAUDIO_SHARED opt
 # - HAVE_SDL_LOADSO opt
 macro(CheckPulseAudio)
-  if(PULSEAUDIO)
+  if(SDL_PULSEAUDIO)
     pkg_check_modules(PKG_PULSEAUDIO libpulse-simple)
     if(PKG_PULSEAUDIO_FOUND)
       set(HAVE_PULSEAUDIO TRUE)
@@ -160,15 +160,15 @@ macro(CheckPulseAudio)
       set(SOURCE_FILES ${SOURCE_FILES} ${PULSEAUDIO_SOURCES})
       set(SDL_AUDIO_DRIVER_PULSEAUDIO 1)
       list(APPEND EXTRA_CFLAGS ${PKG_PULSEAUDIO_CFLAGS})
-      if(PULSEAUDIO_SHARED AND NOT HAVE_SDL_LOADSO)
+      if(SDL_PULSEAUDIO_SHARED AND NOT HAVE_SDL_LOADSO)
         message_warn("You must have SDL_LoadObject() support for dynamic PulseAudio loading")
       endif()
-      if(PULSEAUDIO_SHARED AND HAVE_SDL_LOADSO)
+      if(SDL_PULSEAUDIO_SHARED AND HAVE_SDL_LOADSO)
         FindLibraryAndSONAME("pulse-simple")
         set(SDL_AUDIO_DRIVER_PULSEAUDIO_DYNAMIC "\"${PULSE_SIMPLE_LIB_SONAME}\"")
         set(HAVE_PULSEAUDIO_SHARED TRUE)
       else()
-        list(APPEND EXTRA_LDFLAGS ${PKG_PULSEAUDIO_LDFLAGS})
+        list(APPEND EXTRA_LDFLAGS ${PKG_sPULSEAUDIO_LDFLAGS})
       endif()
       set(HAVE_SDL_AUDIO TRUE)
     endif()
@@ -178,10 +178,10 @@ endmacro()
 # Requires:
 # - PkgCheckModules
 # Optional:
-# - JACK_SHARED opt
+# - SDL_JACK_SHARED opt
 # - HAVE_SDL_LOADSO opt
 macro(CheckJACK)
-  if(JACK)
+  if(SDL_JACK)
     pkg_check_modules(PKG_JACK jack)
     if(PKG_JACK_FOUND)
       set(HAVE_JACK TRUE)
@@ -189,10 +189,10 @@ macro(CheckJACK)
       set(SOURCE_FILES ${SOURCE_FILES} ${JACK_SOURCES})
       set(SDL_AUDIO_DRIVER_JACK 1)
       list(APPEND EXTRA_CFLAGS ${PKG_JACK_CFLAGS})
-      if(JACK_SHARED AND NOT HAVE_SDL_LOADSO)
+      if(SDL_JACK_SHARED AND NOT HAVE_SDL_LOADSO)
         message_warn("You must have SDL_LoadObject() support for dynamic JACK audio loading")
       endif()
-      if(JACK_SHARED AND HAVE_SDL_LOADSO)
+      if(SDL_JACK_SHARED AND HAVE_SDL_LOADSO)
         FindLibraryAndSONAME("jack")
         set(SDL_AUDIO_DRIVER_JACK_DYNAMIC "\"${JACK_LIB_SONAME}\"")
         set(HAVE_JACK_SHARED TRUE)
@@ -207,10 +207,10 @@ endmacro()
 # Requires:
 # - PkgCheckModules
 # Optional:
-# - ESD_SHARED opt
+# - SDL_ESD_SHARED opt
 # - HAVE_SDL_LOADSO opt
 macro(CheckESD)
-  if(ESD)
+  if(SDL_ESD)
     pkg_check_modules(PKG_ESD esound)
     if(PKG_ESD_FOUND)
       set(HAVE_ESD TRUE)
@@ -218,10 +218,10 @@ macro(CheckESD)
       set(SOURCE_FILES ${SOURCE_FILES} ${ESD_SOURCES})
       set(SDL_AUDIO_DRIVER_ESD 1)
       list(APPEND EXTRA_CFLAGS ${PKG_ESD_CFLAGS})
-      if(ESD_SHARED AND NOT HAVE_SDL_LOADSO)
+      if(SDL_ESD_SHARED AND NOT HAVE_SDL_LOADSO)
           message_warn("You must have SDL_LoadObject() support for dynamic ESD loading")
       endif()
-      if(ESD_SHARED AND HAVE_SDL_LOADSO)
+      if(SDL_ESD_SHARED AND HAVE_SDL_LOADSO)
           FindLibraryAndSONAME(esd)
           set(SDL_AUDIO_DRIVER_ESD_DYNAMIC "\"${ESD_LIB_SONAME}\"")
           set(HAVE_ESD_SHARED TRUE)
@@ -236,10 +236,10 @@ endmacro()
 # Requires:
 # - n/a
 # Optional:
-# - ARTS_SHARED opt
+# - SDL_ARTS_SHARED opt
 # - HAVE_SDL_LOADSO opt
 macro(CheckARTS)
-  if(ARTS)
+  if(SDL_ARTS)
     find_program(ARTS_CONFIG arts-config)
     if(ARTS_CONFIG)
       execute_process(CMD_ARTSCFLAGS ${ARTS_CONFIG} --cflags
@@ -251,10 +251,10 @@ macro(CheckARTS)
       set(SOURCE_FILES ${SOURCE_FILES} ${ARTS_SOURCES})
       set(SDL_AUDIO_DRIVER_ARTS 1)
       set(HAVE_ARTS TRUE)
-      if(ARTS_SHARED AND NOT HAVE_SDL_LOADSO)
+      if(SDL_ARTS_SHARED AND NOT HAVE_SDL_LOADSO)
         message_warn("You must have SDL_LoadObject() support for dynamic ARTS loading")
       endif()
-      if(ARTS_SHARED AND HAVE_SDL_LOADSO)
+      if(SDL_ARTS_SHARED AND HAVE_SDL_LOADSO)
         # TODO
         FindLibraryAndSONAME(artsc)
         set(SDL_AUDIO_DRIVER_ARTS_DYNAMIC "\"${ARTSC_LIB_SONAME}\"")
@@ -270,10 +270,10 @@ endmacro()
 # Requires:
 # - n/a
 # Optional:
-# - NAS_SHARED opt
+# - SDL_NAS_SHARED opt
 # - HAVE_SDL_LOADSO opt
 macro(CheckNAS)
-  if(NAS)
+  if(SDL_NAS)
     # TODO: set include paths properly, so the NAS headers are found
     check_include_file(audio/audiolib.h HAVE_NAS_H)
     find_library(D_NAS_LIB audio)
@@ -282,10 +282,10 @@ macro(CheckNAS)
       file(GLOB NAS_SOURCES ${SDL2_SOURCE_DIR}/src/audio/nas/*.c)
       set(SOURCE_FILES ${SOURCE_FILES} ${NAS_SOURCES})
       set(SDL_AUDIO_DRIVER_NAS 1)
-      if(NAS_SHARED AND NOT HAVE_SDL_LOADSO)
+      if(SDL_NAS_SHARED AND NOT HAVE_SDL_LOADSO)
         message_warn("You must have SDL_LoadObject() support for dynamic NAS loading")
       endif()
-      if(NAS_SHARED AND HAVE_SDL_LOADSO)
+      if(SDL_NAS_SHARED AND HAVE_SDL_LOADSO)
         FindLibraryAndSONAME("audio")
         set(SDL_AUDIO_DRIVER_NAS_DYNAMIC "\"${AUDIO_LIB_SONAME}\"")
         set(HAVE_NAS_SHARED TRUE)
@@ -300,10 +300,10 @@ endmacro()
 # Requires:
 # - n/a
 # Optional:
-# - SNDIO_SHARED opt
+# - SDL_SNDIO_SHARED opt
 # - HAVE_SDL_LOADSO opt
 macro(CheckSNDIO)
-  if(SNDIO)
+  if(SDL_SNDIO)
     # TODO: set include paths properly, so the sndio headers are found
     check_include_file(sndio.h HAVE_SNDIO_H)
     find_library(D_SNDIO_LIB sndio)
@@ -312,10 +312,10 @@ macro(CheckSNDIO)
       file(GLOB SNDIO_SOURCES ${SDL2_SOURCE_DIR}/src/audio/sndio/*.c)
       set(SOURCE_FILES ${SOURCE_FILES} ${SNDIO_SOURCES})
       set(SDL_AUDIO_DRIVER_SNDIO 1)
-      if(SNDIO_SHARED AND NOT HAVE_SDL_LOADSO)
+      if(SDL_SNDIO_SHARED AND NOT HAVE_SDL_LOADSO)
         message_warn("You must have SDL_LoadObject() support for dynamic sndio loading")
       endif()
-      if(SNDIO_SHARED AND HAVE_SDL_LOADSO)
+      if(SDL_SNDIO_SHARED AND HAVE_SDL_LOADSO)
         FindLibraryAndSONAME("sndio")
         set(SDL_AUDIO_DRIVER_SNDIO_DYNAMIC "\"${SNDIO_LIB_SONAME}\"")
         set(HAVE_SNDIO_SHARED TRUE)
@@ -357,19 +357,19 @@ macro(CheckFusionSound)
 endmacro()
 
 # Requires:
-# - LIBSAMPLERATE
+# - SDL_LIBSAMPLERATE
 # Optional:
-# - LIBSAMPLERATE_SHARED opt
+# - SDL_LIBSAMPLERATE_SHARED opt
 # - HAVE_SDL_LOADSO opt
 macro(CheckLibSampleRate)
-  if(LIBSAMPLERATE)
+  if(SDL_LIBSAMPLERATE)
     check_include_file(samplerate.h HAVE_LIBSAMPLERATE_H)
     if(HAVE_LIBSAMPLERATE_H)
       set(HAVE_LIBSAMPLERATE TRUE)
-      if(LIBSAMPLERATE_SHARED AND NOT HAVE_SDL_LOADSO)
+      if(SDL_LIBSAMPLERATE_SHARED AND NOT HAVE_SDL_LOADSO)
         message_warn("You must have SDL_LoadObject() support for dynamic libsamplerate loading")
       endif()
-      if(LIBSAMPLERATE_SHARED AND HAVE_SDL_LOADSO)
+      if(SDL_LIBSAMPLERATE_SHARED AND HAVE_SDL_LOADSO)
         FindLibraryAndSONAME("samplerate")
         set(SDL_LIBSAMPLERATE_DYNAMIC "\"${SAMPLERATE_LIB_SONAME}\"")
         set(HAVE_LIBSAMPLERATE_SHARED TRUE)
@@ -383,10 +383,10 @@ endmacro()
 # Requires:
 # - n/a
 # Optional:
-# - X11_SHARED opt
+# - SDL_X11_SHARED opt
 # - HAVE_SDL_LOADSO opt
 macro(CheckX11)
-  if(VIDEO_X11)
+  if(SDL_X11)
     foreach(_LIB X11 Xext Xcursor Xinerama Xi Xrandr Xrender Xss Xxf86vm)
         FindLibraryAndSONAME("${_LIB}")
     endforeach()
@@ -423,15 +423,16 @@ macro(CheckX11)
         message_error("Missing Xext.h, maybe you need to install the libxext-dev package?")
       endif()
 
-      set(HAVE_VIDEO_X11 TRUE)
+      set(HAVE_X11 TRUE)
       set(HAVE_SDL_VIDEO TRUE)
 
       file(GLOB X11_SOURCES ${SDL2_SOURCE_DIR}/src/video/x11/*.c)
       set(SOURCE_FILES ${SOURCE_FILES} ${X11_SOURCES})
       set(SDL_VIDEO_DRIVER_X11 1)
 
+      # !!! FIXME: why is this disabled for Apple?
       if(APPLE)
-        set(X11_SHARED OFF)
+        set(SDL_X11_SHARED OFF)
       endif()
 
       check_symbol_exists(shmat "sys/shm.h" HAVE_SHMAT)
@@ -446,7 +447,7 @@ macro(CheckX11)
         endif()
       endif()
 
-      if(X11_SHARED)
+      if(SDL_X11_SHARED)
         if(NOT HAVE_SDL_LOADSO)
           message_warn("You must have SDL_LoadObject() support for dynamic X11 loading")
           set(HAVE_X11_SHARED FALSE)
@@ -478,8 +479,8 @@ macro(CheckX11)
 
       check_symbol_exists(XkbKeycodeToKeysym "X11/Xlib.h;X11/XKBlib.h" SDL_VIDEO_DRIVER_X11_HAS_XKBKEYCODETOKEYSYM)
 
-      if(VIDEO_X11_XCURSOR AND HAVE_XCURSOR_H)
-        set(HAVE_VIDEO_X11_XCURSOR TRUE)
+      if(SDL_X11_XCURSOR AND HAVE_XCURSOR_H)
+        set(HAVE_X11_XCURSOR TRUE)
         if(HAVE_X11_SHARED AND XCURSOR_LIB)
           set(SDL_VIDEO_DRIVER_X11_DYNAMIC_XCURSOR "\"${XCURSOR_LIB_SONAME}\"")
         else()
@@ -488,8 +489,8 @@ macro(CheckX11)
         set(SDL_VIDEO_DRIVER_X11_XCURSOR 1)
       endif()
 
-      if(VIDEO_X11_XINERAMA AND HAVE_XINERAMA_H)
-        set(HAVE_VIDEO_X11_XINERAMA TRUE)
+      if(SDL_X11_XINERAMA AND HAVE_XINERAMA_H)
+        set(HAVE_X11_XINERAMA TRUE)
         if(HAVE_X11_SHARED AND XINERAMA_LIB)
           set(SDL_VIDEO_DRIVER_X11_DYNAMIC_XINERAMA "\"${XINERAMA_LIB_SONAME}\"")
         else()
@@ -498,8 +499,8 @@ macro(CheckX11)
         set(SDL_VIDEO_DRIVER_X11_XINERAMA 1)
       endif()
 
-      if(VIDEO_X11_XINPUT AND HAVE_XINPUT2_H)
-        set(HAVE_VIDEO_X11_XINPUT TRUE)
+      if(SDL_X11_XINPUT AND HAVE_XINPUT2_H)
+        set(HAVE_X11_XINPUT TRUE)
         if(HAVE_X11_SHARED AND XI_LIB)
           set(SDL_VIDEO_DRIVER_X11_DYNAMIC_XINPUT2 "\"${XI_LIB_SONAME}\"")
         else()
@@ -524,45 +525,45 @@ macro(CheckX11)
         endif()
       endif()
 
-      if(VIDEO_X11_XRANDR AND HAVE_XRANDR_H)
+      if(SDL_X11_XRANDR AND HAVE_XRANDR_H)
         if(HAVE_X11_SHARED AND XRANDR_LIB)
           set(SDL_VIDEO_DRIVER_X11_DYNAMIC_XRANDR "\"${XRANDR_LIB_SONAME}\"")
         else()
           list(APPEND EXTRA_LIBS ${XRANDR_LIB})
         endif()
         set(SDL_VIDEO_DRIVER_X11_XRANDR 1)
-        set(HAVE_VIDEO_X11_XRANDR TRUE)
+        set(HAVE_X11_XRANDR TRUE)
       endif()
 
-      if(VIDEO_X11_XSCRNSAVER AND HAVE_XSS_H)
+      if(SDL_X11_XSCRNSAVER AND HAVE_XSS_H)
         if(HAVE_X11_SHARED AND XSS_LIB)
           set(SDL_VIDEO_DRIVER_X11_DYNAMIC_XSS "\"${XSS_LIB_SONAME}\"")
         else()
           list(APPEND EXTRA_LIBS ${XSS_LIB})
         endif()
         set(SDL_VIDEO_DRIVER_X11_XSCRNSAVER 1)
-        set(HAVE_VIDEO_X11_XSCRNSAVER TRUE)
+        set(HAVE_X11_XSCRNSAVER TRUE)
       endif()
 
-      if(VIDEO_X11_XSHAPE AND HAVE_XSHAPE_H)
+      if(SDL_X11_XSHAPE AND HAVE_XSHAPE_H)
         set(SDL_VIDEO_DRIVER_X11_XSHAPE 1)
-        set(HAVE_VIDEO_X11_XSHAPE TRUE)
+        set(HAVE_X11_XSHAPE TRUE)
       endif()
 
-      if(VIDEO_X11_XVM AND HAVE_XF86VM_H)
+      if(SDL_X11_XVM AND HAVE_XF86VM_H)
         if(HAVE_X11_SHARED AND XXF86VM_LIB)
           set(SDL_VIDEO_DRIVER_X11_DYNAMIC_XVIDMODE "\"${XXF86VM_LIB_SONAME}\"")
         else()
           list(APPEND EXTRA_LIBS ${XXF86VM_LIB})
         endif()
         set(SDL_VIDEO_DRIVER_X11_XVIDMODE 1)
-        set(HAVE_VIDEO_X11_XVM TRUE)
+        set(HAVE_X11_XVM TRUE)
       endif()
 
       set(CMAKE_REQUIRED_LIBRARIES)
     endif()
   endif()
-  if(NOT HAVE_VIDEO_X11)
+  if(NOT HAVE_X11)
     # Prevent Mesa from including X11 headers
     list(APPEND EXTRA_CFLAGS "-DMESA_EGL_NO_X11_HEADERS -DEGL_NO_X11")
   endif()
@@ -593,14 +594,14 @@ endmacro()
 # - EGL
 # - PkgCheckModules
 # Optional:
-# - WAYLAND_SHARED opt
+# - SDL_WAYLAND_SHARED opt
 # - HAVE_SDL_LOADSO opt
 macro(CheckWayland)
-  if(VIDEO_WAYLAND)
+  if(SDL_WAYLAND)
     pkg_check_modules(WAYLAND wayland-client wayland-scanner wayland-egl wayland-cursor egl "xkbcommon>=0.5.0")
     pkg_check_modules(WAYLAND_SCANNER_1_15 "wayland-scanner>=1.15")
 
-    if(WAYLAND_FOUND AND HAVE_VIDEO_OPENGL_EGL)
+    if(WAYLAND_FOUND AND HAVE_OPENGL_EGL)
       execute_process(
         COMMAND ${PKG_CONFIG_EXECUTABLE} --variable=wayland_scanner wayland-scanner
         WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}"
@@ -627,7 +628,7 @@ macro(CheckWayland)
       include_directories(
           ${WAYLAND_INCLUDE_DIRS}
       )
-      set(HAVE_VIDEO_WAYLAND TRUE)
+      set(HAVE_WAYLAND TRUE)
       set(HAVE_SDL_VIDEO TRUE)
 
       file(GLOB WAYLAND_SOURCES ${SDL2_SOURCE_DIR}/src/video/wayland/*.c)
@@ -643,15 +644,15 @@ macro(CheckWayland)
         WaylandProtocolGen("${WAYLAND_SCANNER}" "${WAYLAND_SCANNER_CODE_MODE}" "${SDL2_SOURCE_DIR}/wayland-protocols/${_XML}" "${_PROTL}")
       endforeach()
 
-      if(VIDEO_WAYLAND_QT_TOUCH)
-          set(HAVE_VIDEO_WAYLAND_QT_TOUCH TRUE)
+      if(SDL_WAYLAND_QT_TOUCH)
+          set(HAVE_WAYLAND_QT_TOUCH TRUE)
           set(SDL_VIDEO_DRIVER_WAYLAND_QT_TOUCH 1)
       endif()
 
-      if(WAYLAND_SHARED AND NOT HAVE_SDL_LOADSO)
+      if(SDL_WAYLAND_SHARED AND NOT HAVE_SDL_LOADSO)
         message_warn("You must have SDL_LoadObject() support for dynamic Wayland loading")
       endif()
-      if(WAYLAND_SHARED AND HAVE_SDL_LOADSO)
+      if(SDL_WAYLAND_SHARED AND HAVE_SDL_LOADSO)
         FindLibraryAndSONAME(wayland-client)
         FindLibraryAndSONAME(wayland-egl)
         FindLibraryAndSONAME(wayland-cursor)
@@ -665,17 +666,17 @@ macro(CheckWayland)
         set(EXTRA_LIBS ${WAYLAND_LIBRARIES} ${EXTRA_LIBS})
       endif()
 
-      if(WAYLAND_LIBDECOR)
+      if(SDL_WAYLAND_LIBDECOR)
         pkg_check_modules(LIBDECOR libdecor-0)
         if(LIBDECOR_FOUND)
             set(HAVE_WAYLAND_LIBDECOR TRUE)
             set(HAVE_LIBDECOR_H 1)
             link_directories(${LIBDECOR_LIBRARY_DIRS})
             include_directories(${LIBDECOR_INCLUDE_DIRS})
-            if(LIBDECOR_SHARED AND NOT HAVE_SDL_LOADSO)
+            if(SDL_WAYLAND_LIBDECOR_SHARED AND NOT HAVE_SDL_LOADSO)
                 message_warn("You must have SDL_LoadObject() support for dynamic libdecor loading")
             endif()
-            if(LIBDECOR_SHARED AND HAVE_SDL_LOADSO)
+            if(SDL_WAYLAND_LIBDECOR_SHARED AND HAVE_SDL_LOADSO)
                 set(HAVE_LIBDECOR_SHARED TRUE)
                 FindLibraryAndSONAME(decor-0)
                 set(SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_LIBDECOR "\"${DECOR_0_LIB_SONAME}\"")
@@ -694,11 +695,11 @@ endmacro()
 # - n/a
 #
 macro(CheckCOCOA)
-  if(VIDEO_COCOA)
+  if(SDL_COCOA)
     if(APPLE) # Apple always has Cocoa.
-      set(HAVE_VIDEO_COCOA TRUE)
+      set(HAVE_COCOA TRUE)
     endif()
-    if(HAVE_VIDEO_COCOA)
+    if(HAVE_COCOA)
       file(GLOB COCOA_SOURCES ${SDL2_SOURCE_DIR}/src/video/cocoa/*.m)
       set_source_files_properties(${COCOA_SOURCES} PROPERTIES LANGUAGE C)
       set(SOURCE_FILES ${SOURCE_FILES} ${COCOA_SOURCES})
@@ -714,19 +715,19 @@ endmacro()
 # - DIRECTFB_SHARED opt
 # - HAVE_SDL_LOADSO opt
 macro(CheckDirectFB)
-  if(VIDEO_DIRECTFB)
+  if(SDL_DIRECTFB)
     pkg_check_modules(PKG_DIRECTFB directfb>=1.0.0)
     if(PKG_DIRECTFB_FOUND)
-      set(HAVE_VIDEO_DIRECTFB TRUE)
+      set(HAVE_DIRECTFB TRUE)
       file(GLOB DIRECTFB_SOURCES ${SDL2_SOURCE_DIR}/src/video/directfb/*.c)
       set(SOURCE_FILES ${SOURCE_FILES} ${DIRECTFB_SOURCES})
       set(SDL_VIDEO_DRIVER_DIRECTFB 1)
       set(SDL_VIDEO_RENDER_DIRECTFB 1)
       list(APPEND EXTRA_CFLAGS ${PKG_DIRECTFB_CFLAGS})
-      if(DIRECTFB_SHARED AND NOT HAVE_SDL_LOADSO)
+      if(SDL_DIRECTFB_SHARED AND NOT HAVE_SDL_LOADSO)
         message_warn("You must have SDL_LoadObject() support for dynamic DirectFB loading")
       endif()
-      if(DIRECTFB_SHARED AND HAVE_SDL_LOADSO)
+      if(SDL_DIRECTFB_SHARED AND HAVE_SDL_LOADSO)
         FindLibraryAndSONAME("directfb")
         set(SDL_VIDEO_DRIVER_DIRECTFB_DYNAMIC "\"${DIRECTFB_LIB_SONAME}\"")
         set(HAVE_DIRECTFB_SHARED TRUE)
@@ -741,41 +742,41 @@ endmacro()
 # Requires:
 # - n/a
 macro(CheckVivante)
-  if(VIDEO_VIVANTE)
+  if(SDL_VIVANTE)
     check_c_source_compiles("
         #include <gc_vdk.h>
-        int main(int argc, char** argv) {}" HAVE_VIDEO_VIVANTE_VDK)
+        int main(int argc, char** argv) {}" HAVE_VIVANTE_VDK)
     check_c_source_compiles("
         #define LINUX
         #define EGL_API_FB
         #include <EGL/eglvivante.h>
-        int main(int argc, char** argv) {}" HAVE_VIDEO_VIVANTE_EGL_FB)
-    if(HAVE_VIDEO_VIVANTE_VDK OR HAVE_VIDEO_VIVANTE_EGL_FB)
-      set(HAVE_VIDEO_VIVANTE TRUE)
+        int main(int argc, char** argv) {}" HAVE_VIVANTE_EGL_FB)
+    if(HAVE_VIVANTE_VDK OR HAVE_VIVANTE_EGL_FB)
+      set(HAVE_VIVANTE TRUE)
       set(HAVE_SDL_VIDEO TRUE)
 
       file(GLOB VIVANTE_SOURCES ${SDL2_SOURCE_DIR}/src/video/vivante/*.c)
       set(SOURCE_FILES ${SOURCE_FILES} ${VIVANTE_SOURCES})
       set(SDL_VIDEO_DRIVER_VIVANTE 1)
-      if(HAVE_VIDEO_VIVANTE_VDK)
+      if(HAVE_VIVANTE_VDK)
         set(SDL_VIDEO_DRIVER_VIVANTE_VDK 1)
         list(APPEND EXTRA_LIBS VDK VIVANTE)
       else()
         set(SDL_CFLAGS "${SDL_CFLAGS} -DLINUX -DEGL_API_FB")
         list(APPEND EXTRA_LIBS EGL)
-      endif(HAVE_VIDEO_VIVANTE_VDK)
-    endif(HAVE_VIDEO_VIVANTE_VDK OR HAVE_VIDEO_VIVANTE_EGL_FB)
-  endif(VIDEO_VIVANTE)
-endmacro(CheckVivante)
+      endif(HAVE_VIVANTE_VDK)
+    endif()
+  endif()
+endmacro()
 
 # Requires:
 # - nada
 macro(CheckGLX)
-  if(VIDEO_OPENGL)
+  if(SDL_OPENGL)
     check_c_source_compiles("
         #include <GL/glx.h>
-        int main(int argc, char** argv) {}" HAVE_VIDEO_OPENGL_GLX)
-    if(HAVE_VIDEO_OPENGL_GLX)
+        int main(int argc, char** argv) {}" HAVE_OPENGL_GLX)
+    if(HAVE_OPENGL_GLX)
       set(SDL_VIDEO_OPENGL_GLX 1)
     endif()
   endif()
@@ -784,7 +785,7 @@ endmacro()
 # Requires:
 # - PkgCheckModules
 macro(CheckEGL)
-  if (VIDEO_OPENGL OR VIDEO_OPENGLES)
+  if (SDL_OPENGL OR SDL_OPENGLES)
     pkg_check_modules(EGL egl)
     string(REPLACE "-D_THREAD_SAFE;" "-D_THREAD_SAFE=1;" EGL_CFLAGS "${EGL_CFLAGS}")
     set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} ${EGL_CFLAGS}")
@@ -794,8 +795,8 @@ macro(CheckEGL)
         #define EGL_NO_X11
         #include <EGL/egl.h>
         #include <EGL/eglext.h>
-        int main (int argc, char** argv) {}" HAVE_VIDEO_OPENGL_EGL)
-    if(HAVE_VIDEO_OPENGL_EGL)
+        int main (int argc, char** argv) {}" HAVE_OPENGL_EGL)
+    if(HAVE_OPENGL_EGL)
       set(SDL_VIDEO_OPENGL_EGL 1)
     endif()
   endif()
@@ -804,12 +805,12 @@ endmacro()
 # Requires:
 # - nada
 macro(CheckOpenGL)
-  if(VIDEO_OPENGL)
+  if(SDL_OPENGL)
     check_c_source_compiles("
         #include <GL/gl.h>
         #include <GL/glext.h>
-        int main(int argc, char** argv) {}" HAVE_VIDEO_OPENGL)
-    if(HAVE_VIDEO_OPENGL)
+        int main(int argc, char** argv) {}" HAVE_OPENGL)
+    if(HAVE_OPENGL)
       set(SDL_VIDEO_OPENGL 1)
       set(SDL_VIDEO_RENDER_OGL 1)
     endif()
@@ -819,22 +820,22 @@ endmacro()
 # Requires:
 # - nada
 macro(CheckOpenGLES)
-  if(VIDEO_OPENGLES)
+  if(SDL_OPENGLES)
     check_c_source_compiles("
         #include <GLES/gl.h>
         #include <GLES/glext.h>
-        int main (int argc, char** argv) {}" HAVE_VIDEO_OPENGLES_V1)
-    if(HAVE_VIDEO_OPENGLES_V1)
-        set(HAVE_VIDEO_OPENGLES TRUE)
+        int main (int argc, char** argv) {}" HAVE_OPENGLES_V1)
+    if(HAVE_OPENGLES_V1)
+        set(HAVE_OPENGLES TRUE)
         set(SDL_VIDEO_OPENGL_ES 1)
         set(SDL_VIDEO_RENDER_OGL_ES 1)
     endif()
     check_c_source_compiles("
         #include <GLES2/gl2.h>
         #include <GLES2/gl2ext.h>
-        int main (int argc, char** argv) {}" HAVE_VIDEO_OPENGLES_V2)
-    if(HAVE_VIDEO_OPENGLES_V2)
-        set(HAVE_VIDEO_OPENGLES TRUE)
+        int main (int argc, char** argv) {}" HAVE_OPENGLES_V2)
+    if(HAVE_OPENGLES_V2)
+        set(HAVE_OPENGLES TRUE)
         set(SDL_VIDEO_OPENGL_ES2 1)
         set(SDL_VIDEO_RENDER_OGL_ES2 1)
     endif()
@@ -849,7 +850,7 @@ endmacro()
 # PTHREAD_CFLAGS
 # PTHREAD_LIBS
 macro(CheckPTHREAD)
-  if(PTHREADS)
+  if(SDL_PTHREADS)
     if(ANDROID)
       # the android libc provides built-in support for pthreads, so no
       # additional linking or compile flags are necessary
@@ -937,7 +938,7 @@ macro(CheckPTHREAD)
         endif()
       endif()
 
-      if(PTHREADS_SEM)
+      if(SDL_PTHREADS_SEM)
         check_c_source_compiles("#include <pthread.h>
                                  #include <semaphore.h>
                                  int main(int argc, char **argv) { return 0; }" HAVE_PTHREADS_SEM)
@@ -1122,7 +1123,7 @@ endmacro()
 
 # Check for HIDAPI joystick drivers. This is currently a Unix thing, not Windows or macOS!
 macro(CheckHIDAPI)
-  if(HIDAPI)
+  if(SDL_HIDAPI)
     if(HIDAPI_SKIP_LIBUSB)
       set(HAVE_HIDAPI TRUE)
     else()
@@ -1161,7 +1162,7 @@ endmacro()
 # Requires:
 # - n/a
 macro(CheckRPI)
-  if(VIDEO_RPI)
+  if(SDL_RPI)
     pkg_check_modules(VIDEO_RPI bcm_host brcmegl)
     if (NOT VIDEO_RPI_FOUND)
       set(VIDEO_RPI_INCLUDE_DIRS "/opt/vc/include" "/opt/vc/include/interface/vcos/pthreads" "/opt/vc/include/interface/vmcs_host/linux/" )
@@ -1177,11 +1178,11 @@ macro(CheckRPI)
     set(CMAKE_REQUIRED_LIBRARIES "${VIDEO_RPI_LIBRARIES}")
     check_c_source_compiles("
         #include <bcm_host.h>
-        int main(int argc, char **argv) {}" HAVE_VIDEO_RPI)
+        int main(int argc, char **argv) {}" HAVE_RPI)
     set(CMAKE_REQUIRED_FLAGS "${ORIG_CMAKE_REQUIRED_FLAGS}")
     set(CMAKE_REQUIRED_LIBRARIES)
 
-    if(SDL_VIDEO AND HAVE_VIDEO_RPI)
+    if(SDL_VIDEO AND HAVE_RPI)
       set(HAVE_SDL_VIDEO TRUE)
       set(SDL_VIDEO_DRIVER_RPI 1)
       file(GLOB VIDEO_RPI_SOURCES ${SDL2_SOURCE_DIR}/src/video/raspberry/*.c)
@@ -1189,27 +1190,27 @@ macro(CheckRPI)
       list(APPEND EXTRA_LIBS ${VIDEO_RPI_LIBRARIES})
       set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${VIDEO_RPI_INCLUDE_FLAGS} ${VIDEO_RPI_LIBRARY_FLAGS}")
       list(APPEND EXTRA_LDFLAGS ${VIDEO_RPI_LDFLAGS})
-    endif(SDL_VIDEO AND HAVE_VIDEO_RPI)
-  endif(VIDEO_RPI)
-endmacro(CheckRPI)
+    endif()
+  endif()
+endmacro()
 
 # Requires:
 # - EGL
 # - PkgCheckModules
 # Optional:
-# - KMSDRM_SHARED opt
+# - SDL_KMSDRM_SHARED opt
 # - HAVE_SDL_LOADSO opt
 macro(CheckKMSDRM)
-  if(VIDEO_KMSDRM)
+  if(SDL_KMSDRM)
     pkg_check_modules(KMSDRM libdrm gbm egl)
-    if(KMSDRM_FOUND AND HAVE_VIDEO_OPENGL_EGL)
+    if(KMSDRM_FOUND AND HAVE_OPENGL_EGL)
       link_directories(
         ${KMSDRM_LIBRARY_DIRS}
       )
       include_directories(
         ${KMSDRM_INCLUDE_DIRS}
       )
-      set(HAVE_VIDEO_KMSDRM TRUE)
+      set(HAVE_KMSDRM TRUE)
       set(HAVE_SDL_VIDEO TRUE)
 
       file(GLOB KMSDRM_SOURCES ${SDL2_SOURCE_DIR}/src/video/kmsdrm/*.c)
@@ -1219,10 +1220,10 @@ macro(CheckKMSDRM)
 
       set(SDL_VIDEO_DRIVER_KMSDRM 1)
 
-      if(KMSDRM_SHARED AND NOT HAVE_SDL_LOADSO)
+      if(SDL_KMSDRM_SHARED AND NOT HAVE_SDL_LOADSO)
         message_warn("You must have SDL_LoadObject() support for dynamic KMS/DRM loading")
       endif()
-      if(KMSDRM_SHARED AND HAVE_SDL_LOADSO)
+      if(SDL_KMSDRM_SHARED AND HAVE_SDL_LOADSO)
         FindLibraryAndSONAME(drm)
         FindLibraryAndSONAME(gbm)
         set(SDL_VIDEO_DRIVER_KMSDRM_DYNAMIC "\"${DRM_LIB_SONAME}\"")