Gem5 编译时的警告

【问题标题】：Warning During Compilation of Gem5Gem5 编译时的警告
【发布时间】：2021-04-13 09:03:36
【问题描述】：

我正在使用 ubuntu18.04.5，我已经安装了所有必需品并按照指南成功编译了 gem5：https://www.gem5.org/documentation/learning_gem5/introduction/

但在编译过程中我收到 2 个警告：

*** Summary of Warnings ***
Warning: Header file <png.h> not found.
         This host has no libpng library.
         Disabling support for PNG framebuffers.
Warning: Couldn't find any HDF5 C++ libraries. Disabling HDF5 support.

我该如何修复它们？它将如何影响用户体验？

【问题讨论】：

sudo apt install libpng-dev libpng++-dev libhdf5-cpp-100 libhdf5-dev

标签： compilation warnings gem5

【解决方案1】：

对于 CentOS 8.3，我在构建 gem5 时收到了相同的警告消息 -

***Summary of Warnings***  
    Warning: Header file <png.h> not found.
             This host has no libpng library.
             Disabling support for PNG framebuffers. 
    Warning: Couldn't find any HDF5 C++ libraries. Disabling HDF5 support.

并使用命令解决它 -

sudo yum install libpng-devel
sudo yum -y install hdf5-devel

对于 Ubuntu 18.04 或 20.04，使用以下命令 -

sudo apt-get install libhdf5-dev
sudo apt-get install libpng-dev

【讨论】：