windows i386 support

core/testing/signal_handler_libc.odin

@@ -24,10 +24,18 @@ import "core:terminal/ansi"
 @(private="file") stop_test_passed: libc.sig_atomic_t
 @(private="file") stop_test_alert:  libc.sig_atomic_t
 
-@(private="file", thread_local)
-local_test_index: libc.sig_atomic_t
-@(private="file", thread_local)
-local_test_index_set: bool
+when ODIN_ARCH == .i386 && ODIN_OS == .Windows {
+	// Thread-local storage is problematic on Windows i386
+	@(private="file")
+	local_test_index: libc.sig_atomic_t
+	@(private="file")
+	local_test_index_set: bool
+} else {
+	@(private="file", thread_local)
+	local_test_index: libc.sig_atomic_t
+	@(private="file", thread_local)
+	local_test_index_set: bool
+}
 
 // Windows does not appear to have a SIGTRAP, so this is defined here, instead
 // of in the libc package, just so there's no confusion about it being