From 6f15fdf9658ebc8442ce911ec2d2494df28d7aa3 Mon Sep 17 00:00:00 2001
From: Alex P <dtk077@gmail.com>
Date: Thu, 4 Sep 2025 08:25:16 +0000
Subject: [PATCH] perf(build): update ARM optimization flags for better
 compatibility

Replace -mcpu with -mtune in compiler flags to improve binary compatibility
while maintaining performance for Cortex-A7 targets
---
 Makefile                  | 2 +-
 tools/build_audio_deps.sh | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/Makefile b/Makefile
index 3c81f5ce..5470d8e7 100644
--- a/Makefile
+++ b/Makefile
@@ -29,7 +29,7 @@ ALSA_VERSION ?= 1.2.14
 OPUS_VERSION ?= 1.5.2
 
 # Optimization flags for ARM Cortex-A7 with NEON
-OPTIM_CFLAGS := -O3 -mcpu=cortex-a7 -mfpu=neon -mfloat-abi=hard -ftree-vectorize -ffast-math -funroll-loops
+OPTIM_CFLAGS := -O3 -mfpu=neon -mtune=cortex-a7 -mfloat-abi=hard -ftree-vectorize -ffast-math -funroll-loops
 
 PROMETHEUS_TAG := github.com/prometheus/common/version
 KVM_PKG_NAME := github.com/jetkvm/kvm
diff --git a/tools/build_audio_deps.sh b/tools/build_audio_deps.sh
index d50d8a1a..374d6a5f 100755
--- a/tools/build_audio_deps.sh
+++ b/tools/build_audio_deps.sh
@@ -24,7 +24,7 @@ cd "$AUDIO_LIBS_DIR"
 [ -d opus-${OPUS_VERSION} ] || tar xf opus-${OPUS_VERSION}.tar.gz
 
 # Optimization flags for ARM Cortex-A7 with NEON
-OPTIM_CFLAGS="-O3 -mcpu=cortex-a7 -mfpu=neon -mfloat-abi=hard -ftree-vectorize -ffast-math -funroll-loops"
+OPTIM_CFLAGS="-O3 -mfpu=neon -mtune=cortex-a7 -mfloat-abi=hard -ftree-vectorize -ffast-math -funroll-loops"
 
 export CC="${CROSS_PREFIX}-gcc"
 export CFLAGS="$OPTIM_CFLAGS"