如何在openwrt上编译python3.9？

Question

S在debian上编译python3.9很简单：

    sudo apt install build-essential zlib1g-dev libncurses5-dev libgdbm-dev libnss3-dev libssl-dev libsqlite3-dev libreadline-dev libffi-dev curl libbz2-dev
    wget https://www.python.org/ftp/python/3.9.1/Python-3.9.1.tgz
    tar -xf Python-3.9.1.tgz
    cd Python-3.9.1
    ./configure --enable-optimizations
    #nproc value is 4 in my pc platform
    make -j 4
    sudo make altinstall

如何编译python3.9并在openwrt上安装？

root@OpenWrt:~# cat /etc/banner
  _______                     ________        __
 |       |.-----.-----.-----.|  |  |  |.----.|  |_
 |   -   ||  _  |  -__|     ||  |  |  ||   _||   _|
 |_______||   __|_____|__|__||________||__|  |____|
          |__| W I R E L E S S   F R E E D O M
 -----------------------------------------------------
 OpenWrt 19.07.7, r11306-c4a6851c72
 -----------------------------------------------------
root@OpenWrt:~# uname -a
Linux OpenWrt 4.14.221 #0 SMP Mon Feb 15 15:22:37 2021 x86_64 GNU/Linux
root@OpenWrt:~# python3
Python 3.7.10 (default, May 28 2021, 13:26:31) 
[GCC 7.5.0] on linux

有些软件需要Python3.8或更高版本，我想编译python3.9。

Answer 1

下载所针对的OpenWRT发行版的SDK，修改Python的Makefile，并使用SDK编译Python。

您可以在这里看到一些设置说明：https://openwrt.org/docs/guide-developer/using_这个_sdk

安装好SDK后，修改python3的Makefiles (下面是一个合并的示例PR，将python更新为3.9.5：https://github.com/openwrt/packages/pull/15586/commits/e312275dd9c25c4032b4d2d3623b042905c8bf16)

然后，您应该能够使用像make package/python3/compile V=sc这样的命令编译包，这将在SDK的bin文件夹中生成一个可安装的IPK。