Update XZ Utils to 5.0.3 (in deps)

src/liblzma/simple/powerpc.c

 ///////////////////////////////////////////////////////////////////////////////
 //
 /// \file       powerpc.c
 /// \brief      Filter for PowerPC (big endian) binaries
 ///
 //  Authors:    Igor Pavlov
 //              Lasse Collin
 //
 //  This file has been put into the public domain.
 //  You can do whatever you want with this file.
 //
 ///////////////////////////////////////////////////////////////////////////////
 
 #include "simple_private.h"
 
 
 static size_t
-powerpc_code(lzma_simple *simple lzma_attribute((unused)),
+powerpc_code(lzma_simple *simple lzma_attribute((__unused__)),
                 uint32_t now_pos, bool is_encoder,
                 uint8_t *buffer, size_t size)
 {
         size_t i;
         for (i = 0; i + 4 <= size; i += 4) {
                 // PowerPC branch 6(48) 24(Offset) 1(Abs) 1(Link)
                 if ((buffer[i] >> 2) == 0x12
                                 && ((buffer[i + 3] & 3) == 1)) {
 
                         const uint32_t src = ((buffer[i + 0] & 3) << 24)
@@ skipping 35 matching lines @@
         return powerpc_coder_init(next, allocator, filters, true);
 }
 
 
 extern lzma_ret
 lzma_simple_powerpc_decoder_init(lzma_next_coder *next,
                 lzma_allocator *allocator, const lzma_filter_info *filters)
 {
         return powerpc_coder_init(next, allocator, filters, false);
 }