githubzilla opened a new issue #1675:
URL: https://github.com/apache/incubator-brpc/issues/1675
**Describe the bug (描述bug)**
无法在Ubuntu 21.04 ARM64环境下编译通过
**To Reproduce (复现方法)**
>sh config_brpc.sh --headers=/usr/include --libs=/usr/lib --cxx=clang++
--cc=clang
>make
./src/butil/time.h:223:11: error: invalid output constraint '=a' in asm
: "=a" (lo), "=d" (hi)
**Expected behavior (期望行为)**
编译通过
**Versions (各种版本)**
OS: Ubuntu 21.04 5.10.76-linuxkit aarch64
Compiler: Ubuntu clang version 12.0.0-3ubuntu1~21.04.2
brpc: 0.9.7
protobuf:
**Additional context/screenshots (更多上下文/截图)**

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