SDL: hints: Remove SDL_HINT_DEBUG_LOGGING.

SDL Commits
1 
From f556027e159cf189f25a738fd8363ad60caf413d Mon Sep 17 00:00:00 2001
From: "Ryan C. Gordon" <[EMAIL REDACTED]>
Date: Fri, 10 Oct 2025 21:55:48 -0400
Subject: [PATCH] hints: Remove SDL_HINT_DEBUG_LOGGING.

This now just needs generic debug-level logging enabled, for example:

```bash
SDL_LOGGING=debug ./test/testsprite

Fixes #13425.

include/SDL3/SDL_hints.h | 25 -------------------------
src/SDL_utils.c | 5 ±—
2 files changed, 1 insertion(+), 29 deletions(-)

diff --git a/include/SDL3/SDL_hints.h b/include/SDL3/SDL_hints.h
index 331a83258aba1..5632b4e5e4700 100644
— a/include/SDL3/SDL_hints.h
+++ b/include/SDL3/SDL_hints.h
@@ -4531,31 +4531,6 @@ extern “C” {
*/
#define SDL_HINT_PEN_TOUCH_EVENTS “SDL_PEN_TOUCH_EVENTS”

-/**

    • A variable controlling whether SDL logs some debug information.
    • The variable can be set to the following values:
      • “0”: SDL debug information will not be logged. (default)
      • “1”: SDL debug information will be logged.
    • This is generally meant to be used as an environment variable to let
    • end-users report what subsystems were chosen on their system, perhaps what
    • sort of hardware they are running on, etc, to aid in debugging. Logged
    • information is sent through SDL_Log(), which means by default they appear
    • on stdout on most platforms, or maybe OutputDebugString() on Windows, and
    • can be funneled by the app with SDL_SetLogOutputFunction(), etc.
    • The specific output might change between SDL versions; more information
    • might be deemed useful in the future.
    • This hint can be set anytime, but the specific logs are generated during
    • subsystem init.
    • \since This hint is available since SDL 3.4.0.
  • */
    -#define SDL_HINT_DEBUG_LOGGING “SDL_DEBUG_LOGGING”

/**

  • An enumeration of hint priorities.

diff --git a/src/SDL_utils.c b/src/SDL_utils.c
index 097213c9f941e..34b6377ae84f3 100644
— a/src/SDL_utils.c
+++ b/src/SDL_utils.c
@@ -575,12 +575,9 @@ char *SDL_CreateDeviceName(Uint16 vendor, Uint16 product, const char *vendor_nam
return name;
}

-#define SDL_DEBUG_LOG_INTRO "SDL_DEBUG: "

void SDL_DebugLogBackend(const char *subsystem, const char *backend)
{

  • if (SDL_GetHintBoolean(SDL_HINT_DEBUG_LOGGING, false)) {
  •    SDL_Log(SDL_DEBUG_LOG_INTRO "chose %s backend '%s'", subsystem, backend);
  • }
  • SDL_LogDebug(SDL_LOG_CATEGORY_SYSTEM, “SDL chose %s backend ‘%s’”, subsystem, backend);
    }