Update prebuilt Clang to r416183b from Android.

https://android.googlesource.com/platform/prebuilts/clang/host/
linux-x86/+/06a71ddac05c22edb2d10b590e1769b3f8619bef

clang 12.0.5 (based on r416183b) from build 7284624.

Change-Id: I277a316abcf47307562d8b748b84870f31a72866
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
diff --git a/linux-x64/clang/python3/include/python3.9/pymacconfig.h b/linux-x64/clang/python3/include/python3.9/pymacconfig.h
new file mode 100644
index 0000000..9dde11b
--- /dev/null
+++ b/linux-x64/clang/python3/include/python3.9/pymacconfig.h
@@ -0,0 +1,102 @@
+#ifndef PYMACCONFIG_H
+#define PYMACCONFIG_H
+     /*
+      * This file moves some of the autoconf magic to compile-time
+      * when building on MacOSX. This is needed for building 4-way
+      * universal binaries and for 64-bit universal binaries because
+      * the values redefined below aren't configure-time constant but
+      * only compile-time constant in these scenarios.
+      */
+
+#if defined(__APPLE__)
+
+# undef SIZEOF_LONG
+# undef SIZEOF_PTHREAD_T
+# undef SIZEOF_SIZE_T
+# undef SIZEOF_TIME_T
+# undef SIZEOF_VOID_P
+# undef SIZEOF__BOOL
+# undef SIZEOF_UINTPTR_T
+# undef SIZEOF_PTHREAD_T
+# undef WORDS_BIGENDIAN
+# undef DOUBLE_IS_ARM_MIXED_ENDIAN_IEEE754
+# undef DOUBLE_IS_BIG_ENDIAN_IEEE754
+# undef DOUBLE_IS_LITTLE_ENDIAN_IEEE754
+# undef HAVE_GCC_ASM_FOR_X87
+
+#    undef VA_LIST_IS_ARRAY
+#    if defined(__LP64__) && defined(__x86_64__)
+#        define VA_LIST_IS_ARRAY 1
+#    endif
+
+#    undef HAVE_LARGEFILE_SUPPORT
+#    ifndef __LP64__
+#         define HAVE_LARGEFILE_SUPPORT 1
+#    endif
+
+#    undef SIZEOF_LONG
+#    ifdef __LP64__
+#        define SIZEOF__BOOL            1
+#        define SIZEOF__BOOL            1
+#        define SIZEOF_LONG             8
+#        define SIZEOF_PTHREAD_T        8
+#        define SIZEOF_SIZE_T           8
+#        define SIZEOF_TIME_T           8
+#        define SIZEOF_VOID_P           8
+#        define SIZEOF_UINTPTR_T        8
+#        define SIZEOF_PTHREAD_T        8
+#    else
+#        ifdef __ppc__
+#           define SIZEOF__BOOL         4
+#        else
+#           define SIZEOF__BOOL         1
+#        endif
+#        define SIZEOF_LONG             4
+#        define SIZEOF_PTHREAD_T        4
+#        define SIZEOF_SIZE_T           4
+#        define SIZEOF_TIME_T           4
+#        define SIZEOF_VOID_P           4
+#        define SIZEOF_UINTPTR_T        4
+#        define SIZEOF_PTHREAD_T        4
+#    endif
+
+#    if defined(__LP64__)
+     /* MacOSX 10.4 (the first release to support 64-bit code
+      * at all) only supports 64-bit in the UNIX layer.
+      * Therefore suppress the toolbox-glue in 64-bit mode.
+      */
+
+    /* In 64-bit mode setpgrp always has no arguments, in 32-bit
+     * mode that depends on the compilation environment
+     */
+#       undef SETPGRP_HAVE_ARG
+
+#    endif
+
+#ifdef __BIG_ENDIAN__
+#define WORDS_BIGENDIAN 1
+#define DOUBLE_IS_BIG_ENDIAN_IEEE754
+#else
+#define DOUBLE_IS_LITTLE_ENDIAN_IEEE754
+#endif /* __BIG_ENDIAN */
+
+#ifdef __i386__
+# define HAVE_GCC_ASM_FOR_X87
+#endif
+
+    /*
+     * The definition in pyconfig.h is only valid on the OS release
+     * where configure ran on and not necessarily for all systems where
+     * the executable can be used on.
+     *
+     * Specifically: OSX 10.4 has limited supported for '%zd', while
+     * 10.5 has full support for '%zd'. A binary built on 10.5 won't
+     * work properly on 10.4 unless we suppress the definition
+     * of PY_FORMAT_SIZE_T
+     */
+#undef  PY_FORMAT_SIZE_T
+
+
+#endif /* defined(_APPLE__) */
+
+#endif /* PYMACCONFIG_H */