Index: chromium-120.0.6099.71/build/config/compiler/BUILD.gn
===================================================================
--- chromium-120.0.6099.71.orig/build/config/compiler/BUILD.gn
+++ chromium-120.0.6099.71/build/config/compiler/BUILD.gn
@@ -1780,7 +1780,7 @@ config("default_warnings") {
 
       # -Wno-class-memaccess warns about hash table and vector in blink.
       # But the violation is intentional.
-      if (!is_nacl) {
+      if ((!is_nacl) && (current_cpu != "ppc64")) {
         cflags_cc += [ "-Wno-class-memaccess" ]
       }
 
@@ -1790,7 +1790,9 @@ config("default_warnings") {
 
       # Don't warn about "maybe" uninitialized. Clang doesn't include this
       # in -Wall but gcc does, and it gives false positives.
-      cflags += [ "-Wno-maybe-uninitialized" ]
+      if (current_cpu != "ppc64") {
+        cflags += [ "-Wno-maybe-uninitialized" ]
+      }
       cflags += [ "-Wno-deprecated-declarations" ]
 
       # -Wcomment gives too many false positives in the case a
@@ -1801,7 +1803,9 @@ config("default_warnings") {
 
       # -Wpacked-not-aligned complains all generated mojom-shared-internal.h
       # files.
-      cflags += [ "-Wno-packed-not-aligned" ]
+      if (current_cpu != "ppc64") {
+        cflags += [ "-Wno-packed-not-aligned" ]
+      }
     }
   }