[binutils-gdb] Fix ARM_CC_FOR_TARGET handling

[Pedro Alves <palves@sourceware.org>]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=8db775b211bb01d06197bf6dabb6b32b5428d5e2

commit 8db775b211bb01d06197bf6dabb6b32b5428d5e2
Author: Pedro Alves <pedro@palves.net>
Date:   Thu Jun 9 15:32:52 2022 +0100

    Fix ARM_CC_FOR_TARGET handling
    
    The previous patch that introduced the arm_cc_for_target procedure
    moved the ARM_CC_FOR_TARGET global check to that procedure, but forgot
    to tell tcl that ARM_CC_FOR_TARGET is a global.  As a result,
    specifying ARM_CC_FOR_TARGET on the command line actually does
    nothing.  This fixes it.
    
    Change-Id: I4e33b7633fa665e2f7b8f8c9592a949d74a19153

Diff:
---
 gdb/testsuite/lib/gdb.exp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/gdb/testsuite/lib/gdb.exp b/gdb/testsuite/lib/gdb.exp
index 67e5838a7a7..37accd9947a 100644
--- a/gdb/testsuite/lib/gdb.exp
+++ b/gdb/testsuite/lib/gdb.exp
@@ -8671,12 +8671,12 @@ proc get_set_option_choices {set_cmd} {
 # that the executable they produce can run.
 
 gdb_caching_proc arm_cc_for_target {
-    if {[info exists ARM_CC_FOR_TARGET]} {
+    if {[info exists ::ARM_CC_FOR_TARGET]} {
 	# If the user specified the compiler explicitly, then don't
 	# check whether the resulting binary runs outside GDB.  Assume
 	# that it does, and if it turns out it doesn't, then the user
 	# should get loud FAILs, instead of UNSUPPORTED.
-	return $ARM_CC_FOR_TARGET
+	return $::ARM_CC_FOR_TARGET
     }
 
     # Fallback to a few common compiler names.  Also confirm the