diff --git a/sys/arm/include/acle-compat.h b/sys/arm/include/acle-compat.h
--- a/sys/arm/include/acle-compat.h
+++ b/sys/arm/include/acle-compat.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014 ARM Ltd
+ * Copyright (c) 2024 Arm Ltd
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -27,157 +27,5 @@
  */
 
 #ifndef __ARM_ARCH
-
-/* ACLE standardises a set of pre-defines that describe the ARM architecture.
-   These were mostly implemented in GCC around GCC-4.8; older versions
-   have no, or only partial support.  To provide a level of backwards
-   compatibility we try to work out what the definitions should be, given
-   the older pre-defines that GCC did produce.  This isn't complete, but
-   it should be enough for use by routines that depend on this header.  */
-
-/* No need to handle ARMv8, GCC had ACLE support before that.  */
-
-#define __ARM_ACLE 101
-
-# ifdef __ARM_ARCH_7__
-/* The common subset of ARMv7 in all profiles.  */
-#  define __ARM_ARCH 7
-#  define __ARM_ARCH_ISA_THUMB 2
-#  define __ARM_FEATURE_CLZ
-#  define __ARM_FEATURE_LDREX 7
-#  define __ARM_FEATURE_UNALIGNED
-# endif
-
-# if defined (__ARM_ARCH_7A__) || defined (__ARM_ARCH_7R__)
-#  define __ARM_ARCH 7
-#  define __ARM_ARCH_ISA_THUMB 2
-#  define __ARM_ARCH_ISA_ARM
-#  define __ARM_FEATURE_CLZ
-#  define __ARM_FEATURE_SIMD32
-#  define __ARM_FEATURE_DSP
-#  define __ARM_FEATURE_QBIT
-#  define __ARM_FEATURE_SAT
-#  define __ARM_FEATURE_LDREX 15
-#  define __ARM_FEATURE_UNALIGNED
-#  ifdef __ARM_ARCH_7A__
-#   define __ARM_ARCH_PROFILE 'A'
-#  else
-#   define __ARM_ARCH_PROFILE 'R'
-#  endif
-# endif
-
-# ifdef __ARM_ARCH_7EM__
-#  define __ARM_ARCH 7
-#  define __ARM_ARCH_ISA_THUMB 2
-#  define __ARM_FEATURE_CLZ
-#  define __ARM_FEATURE_SIMD32
-#  define __ARM_FEATURE_DSP
-#  define __ARM_FEATURE_QBIT
-#  define __ARM_FEATURE_SAT
-#  define __ARM_FEATURE_LDREX 7
-#  define __ARM_FEATURE_UNALIGNED
-#  define __ARM_ARCH_PROFILE 'M'
-# endif
-
-# ifdef __ARM_ARCH_7M__
-#  define __ARM_ARCH 7
-#  define __ARM_ARCH_ISA_THUMB 2
-#  define __ARM_FEATURE_CLZ
-#  define __ARM_FEATURE_QBIT
-#  define __ARM_FEATURE_SAT
-#  define __ARM_FEATURE_LDREX 7
-#  define __ARM_FEATURE_UNALIGNED
-#  define __ARM_ARCH_PROFILE 'M'
-# endif
-
-# ifdef __ARM_ARCH_6T2__
-#  define __ARM_ARCH 6
-#  define __ARM_ARCH_ISA_THUMB 2
-#  define __ARM_ARCH_ISA_ARM
-#  define __ARM_FEATURE_CLZ
-#  define __ARM_FEATURE_SIMD32
-#  define __ARM_FEATURE_DSP
-#  define __ARM_FEATURE_QBIT
-#  define __ARM_FEATURE_SAT
-#  define __ARM_FEATURE_LDREX 4
-#  define __ARM_FEATURE_UNALIGNED
-# endif
-
-# ifdef __ARM_ARCH_6M__
-#  define __ARM_ARCH 6
-#  define __ARM_ARCH_ISA_THUMB 1
-#  define __ARM_ARCH_PROFILE 'M'
-# endif
-
-# if defined (__ARM_ARCH_6__) || defined (__ARM_ARCH_6J__) \
-  || defined (__ARM_ARCH_6K__) || defined (__ARM_ARCH_6Z__) \
-  || defined (__ARM_ARCH_6ZK__)
-#  define __ARM_ARCH 6
-#  define __ARM_ARCH_ISA_THUMB 1
-#  define __ARM_ARCH_ISA_ARM
-#  define __ARM_FEATURE_CLZ
-#  define __ARM_FEATURE_SIMD32
-#  define __ARM_FEATURE_DSP
-#  define __ARM_FEATURE_QBIT
-#  define __ARM_FEATURE_SAT
-#  define __ARM_FEATURE_UNALIGNED
-#  ifndef __thumb__
-#   if defined (__ARM_ARCH_6K__) || defined (__ARM_ARCH_6ZK__)
-#    define __ARM_FEATURE_LDREX 15
-#   else
-#    define __ARM_FEATURE_LDREX 4
-#   endif
-#  endif
-# endif
-
-# if defined (__ARM_ARCH_5TE__) || defined (__ARM_ARCH_5E__)
-#  define __ARM_ARCH 5
-#  define __ARM_ARCH_ISA_ARM
-#  ifdef __ARM_ARCH_5TE__
-#   define __ARM_ARCH_ISA_THUMB 1
-#  endif
-#  define __ARM_FEATURE_CLZ
-#  define __ARM_FEATURE_DSP
-# endif
-
-# if defined (__ARM_ARCH_5T__) || defined (__ARM_ARCH_5__)
-#  define __ARM_ARCH 5
-#  define __ARM_ARCH_ISA_ARM
-#  ifdef __ARM_ARCH_5TE__
-#   define __ARM_ARCH_ISA_THUMB 1
-#  endif
-#  define __ARM_FEATURE_CLZ
-# endif
-
-# ifdef __ARM_ARCH_4T__
-#  define __ARM_ARCH 4
-#  define __ARM_ARCH_ISA_ARM
-#  define __ARM_ARCH_ISA_THUMB 1
-# endif
-
-# ifdef __ARM_ARCH_4__
-#  define __ARM_ARCH 4
-#  define __ARM_ARCH_ISA_ARM
-# endif
-
-# if defined (__ARM_ARCH_3__) || defined (__ARM_ARCH_3M__)
-#  define __ARM_ARCH 3
-#  define __ARM_ARCH_ISA_ARM
-# endif
-
-# ifdef __ARM_ARCH_2__
-#  define __ARM_ARCH 2
-#  define __ARM_ARCH_ISA_ARM
-# endif
-
-# ifdef __ARMEB__
-#  define __ARM_BIG_ENDIAN
-# endif
-
-/* If we still don't know what the target architecture is, then we're
-   probably not using GCC.  */
-# ifndef __ARM_ARCH
-#  error Unable to determine architecture version.
-# endif
-
-#endif /* __ARM_ARCH  */
+#error Your compiler is too old
+#endif