[binutils-gdb] [gdb/testsuite] Declare TUI tests unsupported on msys2-ucrt64

[Tom de Vries]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=aa0b6c104791cbc11a110ce8911f2859ca15b793

commit aa0b6c104791cbc11a110ce8911f2859ca15b793
Author: Tom de Vries <tdevries@suse.de>
Date:   Sat Sep 27 01:20:56 2025 +0200

    [gdb/testsuite] Declare TUI tests unsupported on msys2-ucrt64
    
    I tried to run the TUI tests on msys2-ucrt64, and ran into:
    ...
    (gdb) tui enable^M
    Cannot enable the TUI when output is not a terminal^M
    (gdb)
    ...
    
    The TUI works fine in an msys2-ucrt64 terminal, it's just the testsuite setup
    that doesn't work.
    
    Fix this by bailing out for istarget *-*-mingw* in allow_tui_tests.
    
    Tested on x86_64-linux and msys2-ucrt64.
    
    Approved-By: Tom Tromey <tom@tromey.com>
    
    PR testsuite/33362
    Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=33362

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

diff --git a/gdb/testsuite/lib/gdb.exp b/gdb/testsuite/lib/gdb.exp
index f05e1c84d5b..94978504a5b 100644
--- a/gdb/testsuite/lib/gdb.exp
+++ b/gdb/testsuite/lib/gdb.exp
@@ -3122,6 +3122,10 @@ gdb_caching_proc allow_dlmopen_tests {} {
 # Return 1 if we should allow TUI-related tests.
 
 gdb_caching_proc allow_tui_tests {} {
+    if { [istarget *-*-mingw*] } {
+	# Avoid "Cannot enable the TUI when output is not a terminal".
+	return 0
+    }
     set output [remote_exec host $::GDB "$::INTERNAL_GDBFLAGS --configuration"]
     return [expr {[string first "--enable-tui" $output] != -1}]
 }