#!/bin/bash
# build_sign.sh — meow_sign 宿主编译（产签工具；非目标机二进制，无需 mipsel）。
#
# 用法：
#   ./build_sign.sh            # 宿主编译 → patch_v2/meow_sign/meow_sign
#   ./build_sign.sh static     # 静态宿主编译（可选，便于分发/一致验证）
set -e
cd "$(dirname "$0")"
ROOT="$HOME/Project/R3ProII"
HOST_CC="${CC_HOST:-cc}"
V="$ROOT/patch_v2/meow_verify"

# tweetnacl.c 为 vendor 代码：放宽 -Wno-sign-compare / -Wno-unused-function（其 u64/u32 与 int 混比）。
CFLAGS="-Os -Wall -Wextra"
if [ "$1" = "static" ]; then
    "$HOST_CC" $CFLAGS -static meow_sign.c "$V/tweetnacl.c" "$V/sha256.c" -o meow_sign_static
    echo "== meow_sign (static) =="
    ls -la meow_sign_static; md5sum meow_sign_static; file meow_sign_static
    exit 0
fi

# tweetnacl.c 单独编译并放宽警告；meow_sign.c 全警告编译
"$HOST_CC" -Os -Wno-sign-compare -Wno-unused-function -c "$V/tweetnacl.c" -o tweetnacl_meow.o
"$HOST_CC" -Os -Wall -Wextra -c "$V/sha256.c" -o sha256_meow.o
"$HOST_CC" $CFLAGS meow_sign.c tweetnacl_meow.o sha256_meow.o -o meow_sign
rm -f tweetnacl_meow.o sha256_meow.o
echo "== meow_sign (host) =="
ls -la meow_sign; md5sum meow_sign; file meow_sign