--- ./third_party/zlib/BUILD.gn
+++ ./third_party/zlib/BUILD.gn
@@ -18,7 +18,7 @@
 
 use_arm_neon_optimizations = false
 if (current_cpu == "arm" || current_cpu == "arm64") {
-  if (arm_use_neon) {
+  if (arm_use_neon && is_clang) {
     use_arm_neon_optimizations = true
   }
 }