[binutils-gdb] aarch64: fix build with old glibc

[Jan Beulich]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=e6292a4b2c7ff58f40f7717eb3659996fe5deae3

commit e6292a4b2c7ff58f40f7717eb3659996fe5deae3
Author: Jan Beulich <jbeulich@suse.com>
Date:   Fri Jul 5 08:38:39 2024 +0200

    aarch64: fix build with old glibc
    
    As was pointed out several times before, old glibc declares index(),
    resulting in warnings from -Wshadow, in turn failing the build due to
    -Werror.

Diff:
---
 gas/config/tc-aarch64.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/gas/config/tc-aarch64.c b/gas/config/tc-aarch64.c
index e78be670885..3dfbeb7bd00 100644
--- a/gas/config/tc-aarch64.c
+++ b/gas/config/tc-aarch64.c
@@ -3943,10 +3943,10 @@ parse_shifter_zt0_with_bit_index (char **str,
       return true;
     }
 
-  int64_t index;
-  if (!parse_index_expression (str, &index))
+  int64_t idx;
+  if (!parse_index_expression (str, &idx))
       return false;
-  operand->imm.value = index;
+  operand->imm.value = idx;
 
   if (!skip_past_comma (str))
       return true;