From 87aec3429b8dcc9e76603b7da3aff678c6e0b8a0 Mon Sep 17 00:00:00 2001
From: Anonymous Maarten <anonymous.maarten@gmail.com>
Date: Mon, 27 Mar 2023 18:43:22 +0200
Subject: [PATCH] Fix -Wundef warnings due to use of unguarded
 FAKE_RECURSIVE_MUTEX

---
 src/thread/pthread/SDL_sysmutex.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/src/thread/pthread/SDL_sysmutex.c b/src/thread/pthread/SDL_sysmutex.c
index 201644572d..bbdf8804a9 100644
--- a/src/thread/pthread/SDL_sysmutex.c
+++ b/src/thread/pthread/SDL_sysmutex.c
@@ -31,7 +31,7 @@
 struct SDL_mutex
 {
     pthread_mutex_t id;
-#if FAKE_RECURSIVE_MUTEX
+#ifdef FAKE_RECURSIVE_MUTEX
     int recursive;
     pthread_t owner;
 #endif
@@ -76,7 +76,7 @@ void SDL_DestroyMutex(SDL_mutex *mutex)
 /* Lock the mutex */
 int SDL_LockMutex(SDL_mutex *mutex) SDL_NO_THREAD_SAFETY_ANALYSIS /* clang doesn't know about NULL mutexes */
 {
-#if FAKE_RECURSIVE_MUTEX
+#ifdef FAKE_RECURSIVE_MUTEX
     pthread_t this_thread;
 #endif
 
@@ -84,7 +84,7 @@ int SDL_LockMutex(SDL_mutex *mutex) SDL_NO_THREAD_SAFETY_ANALYSIS /* clang doesn
         return 0;
     }
 
-#if FAKE_RECURSIVE_MUTEX
+#ifdef FAKE_RECURSIVE_MUTEX
     this_thread = pthread_self();
     if (mutex->owner == this_thread) {
         ++mutex->recursive;
@@ -112,7 +112,7 @@ int SDL_TryLockMutex(SDL_mutex *mutex)
 {
     int retval;
     int result;
-#if FAKE_RECURSIVE_MUTEX
+#ifdef FAKE_RECURSIVE_MUTEX
     pthread_t this_thread;
 #endif
 
@@ -121,7 +121,7 @@ int SDL_TryLockMutex(SDL_mutex *mutex)
     }
 
     retval = 0;
-#if FAKE_RECURSIVE_MUTEX
+#ifdef FAKE_RECURSIVE_MUTEX
     this_thread = pthread_self();
     if (mutex->owner == this_thread) {
         ++mutex->recursive;
@@ -159,7 +159,7 @@ int SDL_UnlockMutex(SDL_mutex *mutex) SDL_NO_THREAD_SAFETY_ANALYSIS /* clang doe
         return 0;
     }
 
-#if FAKE_RECURSIVE_MUTEX
+#ifdef FAKE_RECURSIVE_MUTEX
     /* We can only unlock the mutex if we own it */
     if (pthread_self() == mutex->owner) {
         if (mutex->recursive) {