Fix make test:all failures seen on macOS Tahoe (#26136)

platforms/chibios/drivers/eeprom/eeprom_legacy_emulated_flash.c

@@ -204,7 +204,9 @@ void print_eeprom(void) {
             }
             xprintf("%04x", i);
         }
-        if (i % 8 == 0) print(" ");
+        if (i % 8 == 0) {
+            print(" ");
+        }
 
         xprintf(" %02x", DataBuf[i]);
         if ((i + 1) % 16 == 0) {

platforms/test/drivers/audio_pwm_hardware.c

@@ -16,5 +16,5 @@
 #include "audio.h"
 
 void audio_driver_initialize_impl(void) {}
-void audio_driver_start_impl() {}
-void audio_driver_stop_impl() {}
+void audio_driver_start_impl(void) {}
+void audio_driver_stop_impl(void) {}

platforms/timer.c

@@ -1,7 +1,11 @@
 // Copyright 2023 Sergey Vlasov (@sigprof)
 // SPDX-License-Identifier: GPL-2.0-or-later
 
-#include "timer.h"
+// Use an angle-bracket include so the header is located via the include
+// search path rather than source-relative lookup. timer.h uses
+// #include_next to chain to the active platform's _timer.h, and that
+// only has well-defined semantics when timer.h itself was found via -I.
+#include <timer.h>
 
 // Generate out-of-line copies for inline functions defined in timer.h.
 extern inline fast_timer_t timer_read_fast(void);