Try and get CI to pass

Author: saturn691

libc/src/__support/macros/attributes.h

@@ -28,7 +28,16 @@
 #define LIBC_INLINE_ASM __asm__ __volatile__
 #define LIBC_UNUSED __attribute__((unused))
 
-#ifdef LIBC_TARGET_ARCH_IS_GPU
+// Uses the platform specific specialization
+#define LIBC_THREAD_MODE_PLATFORM 0
+
+// Mutex guards nothing, used in single-threaded implementations
+#define LIBC_THREAD_MODE_SINGLE 1
+
+// Vendor provides implementation
+#define LIBC_THREAD_MODE_EXTERNAL 2
+
+#ifdef LIBC_THREAD_MODE == LIBC_THREAD_MODE_SINGLE
 #define LIBC_THREAD_LOCAL
 #else
 #define LIBC_THREAD_LOCAL thread_local

libc/src/__support/threads/mutex.h

@@ -12,15 +12,6 @@
 #include "src/__support/macros/attributes.h"
 #include "src/__support/macros/config.h"
 
-// Uses the platform specific specialization
-#define LIBC_THREAD_MODE_PLATFORM 0
-
-// Mutex guards nothing, used in single-threaded implementations
-#define LIBC_THREAD_MODE_SINGLE 1
-
-// Vendor provides implementation
-#define LIBC_THREAD_MODE_EXTERNAL 2
-
 #if !defined(LIBC_THREAD_MODE)
 #error LIBC_THREAD_MODE is undefined
 #endif // LIBC_THREAD_MODE