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sudo apt install flashplugin-installer

http://exmplayer.sourceforge.net/downloads.html

sudo add-apt-repository ppa:exmplayer-dev/exmplayer
sudo apt-get update
sudo apt-get install exmplayer

1. 安装配置 mbpfan 风扇控制器: https://github.com/linux-on-mac/mbpfan
   mbpfan.service文件从github获取。

sudo apt-get install mbpfan
sudo cp mbpfan.service /etc/systemd/system/
sudo systemctl enable mbpfan.service
sudo systemctl daemon-reload
sudo systemctl start mbpfan.service

1. “软件和更新”中启用附加驱动，使用专有驱动。
2. 安装最新的tlp电源管理。

sudo add-apt-repository ppa:linrunner/tlp
sudo apt update
sudo apt install tlp
sudo systemctl enable tlp.service
sudo systemctl daemon-reload
sudo systemctl start mbpfan.service
sudo tlp start

libwebsockets-i86.a libwebsockets-x86_64.a
libwebsockets-arm32.a libwebsockets-arm64.a

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zlib

nmake -f win32/Makefile.msc 

openssl-1.1.0c

perl Configure VC-WIN32 no-asm
nmake

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macOS 10.14之后不支持交叉编译32位程序。退求其次，虚拟机装ubunut来解决问题。
ubunut 64系统，默认不带32相关头文件和库，需要

sudo apt-get install libc6-dev-i386

之后就能正确交叉编译了。

32位 luajit

D:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Auxiliary\Build\vcvars32.bat
msvcbuild.bat

64位 luajit

D:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Auxiliary\Build\vcvars64.bat
msvcbuild.bat gc64

需要用到 https://github.com/leetal/ios-cmake

源码修正

修改common/almalloc.cpp ，屏蔽下面的代码

//#define ALIGNED_ALLOC_AVAILABLE (__STDC_VERSION__ >= 201112L || __cplusplus >= 201703L)

aligned_alloc 在ios13支持，早期的iOS会crash

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std::map 不能直接访问下标，否则size会自动变大。这坑和js如出一辙。
查询需用find，删除需用erase

    auto it = _tilesAniData.find(z);
    if (it != _tilesAniData.end()) { // remove old data
        delete it->second;
        _tilesAniData.erase(z);
    }

遍历

    for(auto it = _tilesAniData.begin(); it != _tilesAniData.end(); ++it) {
        delete it->second;
    }