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Fix -Wundef warnings due to use of unguarded HAVE_GCC_ATOMICS

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This commit is contained in:
Anonymous Maarten
2023-03-27 19:12:55 +02:00
parent 9dc6cd250e
commit ab71c1a006
2 changed files with 6 additions and 4 deletions
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6
CMakeLists.txt
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@@ -641,13 +641,15 @@ if(USE_GCC OR USE_CLANG OR USE_INTELCC OR USE_QCC)
__sync_fetch_and_add(&a, 1); __sync_fetch_and_add(&a, 1);
__sync_bool_compare_and_swap(&a, 5, 10); __sync_bool_compare_and_swap(&a, 5, 10);
__sync_bool_compare_and_swap(&x, y, z); __sync_bool_compare_and_swap(&x, y, z);
return 0; }" HAVE_GCC_ATOMICS) return 0; }" COMPILER_SUPPORTS_GCC_ATOMICS)
set(HAVE_GCC_ATOMICS ${COMPILER_SUPPORTS_GCC_ATOMICS})
if(NOT HAVE_GCC_ATOMICS) if(NOT HAVE_GCC_ATOMICS)
check_c_source_compiles("int main(int argc, char **argv) { check_c_source_compiles("int main(int argc, char **argv) {
int a; int a;
__sync_lock_test_and_set(&a, 1); __sync_lock_test_and_set(&a, 1);
__sync_lock_release(&a); __sync_lock_release(&a);
return 0; }" HAVE_GCC_SYNC_LOCK_TEST_AND_SET) return 0; }" COMPILER_SUPPORTS_SYNC_LOCK_TEST_AND_SET)
set(HAVE_GCC_SYNC_LOCK_TEST_AND_SET ${COMPILER_SUPPORTS_SYNC_LOCK_TEST_AND_SET})
endif() endif()
endif() endif()

4
src/atomic/SDL_spinlock.c
View File

@@ -78,7 +78,7 @@ SDL_AtomicTryLock(SDL_SpinLock *lock)
return SDL_FALSE; return SDL_FALSE;
} }
#elif HAVE_GCC_ATOMICS || HAVE_GCC_SYNC_LOCK_TEST_AND_SET #elif defined(HAVE_GCC_ATOMICS) || HAVE_GCC_SYNC_LOCK_TEST_AND_SET
return __sync_lock_test_and_set(lock, 1) == 0; return __sync_lock_test_and_set(lock, 1) == 0;
#elif defined(_MSC_VER) && (defined(_M_ARM) || defined(_M_ARM64)) #elif defined(_MSC_VER) && (defined(_M_ARM) || defined(_M_ARM64))
@@ -183,7 +183,7 @@ void SDL_AtomicLock(SDL_SpinLock *lock)
void SDL_AtomicUnlock(SDL_SpinLock *lock) void SDL_AtomicUnlock(SDL_SpinLock *lock)
{ {
#if HAVE_GCC_ATOMICS || HAVE_GCC_SYNC_LOCK_TEST_AND_SET #if defined(HAVE_GCC_ATOMICS) || HAVE_GCC_SYNC_LOCK_TEST_AND_SET
__sync_lock_release(lock); __sync_lock_release(lock);
#elif defined(_MSC_VER) && (defined(_M_ARM) || defined(_M_ARM64)) #elif defined(_MSC_VER) && (defined(_M_ARM) || defined(_M_ARM64))