Disable specific warnings to mitigate compilation problems with KEEP_INTERMEDIATES=yes. (#20339)

platforms/avr/_wait.h

@@ -15,7 +15,11 @@
  */
 #pragma once
 
+// Need to disable GCC's "maybe-uninitialized" warning for this file, as it causes issues when running `KEEP_INTERMEDIATES=yes`.
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wmaybe-uninitialized"
 #include <util/delay.h>
+#pragma GCC diagnostic pop
 
 // http://ww1.microchip.com/downloads/en/devicedoc/atmel-0856-avr-instruction-set-manual.pdf
 // page 22: Table 4-2. Arithmetic and Logic Instructions

platforms/chibios/drivers/audio_dac_additive.c

@@ -19,6 +19,10 @@
 #include <ch.h>
 #include <hal.h>
 
+// Need to disable GCC's "tautological-compare" warning for this file, as it causes issues when running `KEEP_INTERMEDIATES=yes`. Corresponding pop at the end of the file.
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wtautological-compare"
+
 /*
   Audio Driver: DAC
 
@@ -335,3 +339,5 @@ void audio_driver_start(void) {
     active_tones_snapshot_length = 0;
     state                        = OUTPUT_SHOULD_START;
 }
+
+#pragma GCC diagnostic pop

platforms/chibios/drivers/audio_dac_basic.c

@@ -19,6 +19,10 @@
 #include "ch.h"
 #include "hal.h"
 
+// Need to disable GCC's "tautological-compare" warning for this file, as it causes issues when running `KEEP_INTERMEDIATES=yes`. Corresponding pop at the end of the file.
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wtautological-compare"
+
 /*
   Audio Driver: DAC
 
@@ -247,3 +251,5 @@ void audio_driver_start(void) {
     }
     gptStartContinuous(&AUDIO_STATE_TIMER, 2U);
 }
+
+#pragma GCC diagnostic pop