I have a few devices in hand, just list results here.

Note: there is no CelesMark X on other platforms(iOS/Android/macOS/Windows/Linux and etc), so we still can’t compare HarmonyOS devices with others yet.

花粉过敏主要发生在春季，也会延续到夏季。

参考阅读：

• 清华大学医院-春季过敏专题1：什么是花粉症
• 清华大学医院-春季过敏专题2：花粉症如何检测
• 清华大学医院-春季过敏专题3：花粉症如何防治

印象中，我小时候，母亲就有这些症状，我家住在华北地区。我应该也有这些症状，但是具体细节记不清楚了，当时就当热伤风处理的，总是流鼻涕打喷嚏。

我到了挪威之后，每年春天也还是有这些症状的。其他朋友一般是换了地方，几年之后才开始有症状。

关于检测方法，一种是抽血测抗原，一种是皮肤划痕试验，在前臂表皮上擦伤，但不能出血，然后滴上各种过敏物质，另外还有一列对比组。食物过敏也是这么测试的。大家还可以参考中华实用儿科临床杂志: 世界过敏组织关于IgE介导过敏反应的诊断及过敏反应其他相关检测方法立场文件解读(一)——体内检测。

常见的抗过敏药

• 盐酸西替利嗪(Cetirizine)：一种抗过敏药，又称去敏定、司特宁、仙特明、协帝、CETIN或CETY，它是第二代H1抗组胺药，为长效的具选择性的口服强效抗过敏反应药。某些人或对盐酸西替利嗪产生昏睡的副作用，故第一次服用该药物建议避免驾驶交通工具或操作机器等。
• 地氯雷他定(Desloratadine/Aerius/Denosin)：属于三环长效型的组胺拮抗剂(Antagonist)，选择性作用在H1接受体。接受体结合数据显示若在浓度2-3ng/ml(7nmol)，与人类组胺H1接受体会产生有意义的交互作用。

这类药物阻断身体对过敏物质的反应，一般是每天一片，24小时有效，需要每天吃，花粉季开始前1-2周开始服用。

挪威的花粉过敏原

• 赤杨/桤木 – Or/Alnus
• 欧洲榛 – Hassel/Corylus
• 柳树 – Salix/Willows
• 桦树 – Bjørk/Birch
• 草类 – Gress/Grass
• 蒿属/艾草 – Burot/Mugwort

挪威南北狭长，纬度跨度很大，所以南边先开始，北边可能滞后一些，这里有个图表，显示的各种花粉出现的时间。奥斯陆及周边地区，一般3月份就开始了，雪季还没有结束的时候，🤣

挪威人口大约五百五十万左右，大约一百万人有花粉过敏症状，每年会花费10亿欧元。请参考NAAF prepares for pollen season in Norway(英文)。

这个网页中(挪威文)介绍了上述的六种花粉过敏原。花粉警告网页(挪威文)。

花粉过敏一段时间，对食物会有交叉过敏，比如桦树花粉过敏，吃桃子李子苹果之类的时候会有反应，太痛苦了，水果都不能愉快地吃了，🤣 请参考ACAAI: Pollen Food Allergy Syndrome(英文)。

服用过一段时间上述的抗过敏药，咨询了医生，还有没有什么其它“根治”方案，传统一些的是把花粉物质注射到血液中，最近这几年出了药片，每天服用花粉物质，大约疗程三年，可以有效减少身体的过敏反应。一般建议确诊后的暑假之后开始，那时花粉浓度最低，身体可以有半年的时间来适应药物中的花粉物质。我采用的是注射方法，暑假后就三年了，反应强度已经减少了很多，以前每天早上都是10到20个很严重的喷嚏，一直流稀鼻涕。现在花粉严重的时候，一般都是晴朗的高温天，也会打喷嚏，眼睛鼻子痒。

这些药物好像都是丹麦ALK公司的。都是处方药，不能直接在药店买。

以桦树为例：

• 注射剂ALK: Alutard SQ Bjørk 最开始15周，每周一针，浓度逐渐加大，然后8周左右一针，根据时间可以前后调整一周，也就是7-9周，打三年。需要由医生注射，并观察半小时，不能由护士来注射。孩子和成年人都可以使用。
• 片剂ALK: ITULAZAX 每天一片，大约三年，第一次服用的时候，必须是在医生的监控下服用。18岁以上可以使用。

After googling a bit, a video helped me, the trick is like: in BIOS setup, the Main tab, Ctrl+S to enable the hidden options including “SATA Mode”, swith that to AHCI mode, save and quit, then everything is fine.

And I have VMware Fusion, then I tried a few linux distributions with arm64/aarch64 support.

• Ubuntu 23.10(mantic) – Server install image
  • GNOME on Wayland works fine, but there are some bugs for GNOME on xorg, no refresh when UI changes, need to move mouse to get updated, submitted a ticket for it
• openSUSE Tumbleweed KDE 5 – search “iso”, choose openSUSE-Tumbleweed-KDE-Live-aarch64-Current.iso
  • KDE 5 both X11 and Wayland work fine, but it’s not KDE 6. openSUSE only provides KDE6 on x86_64, not arm64 yet.
• Fedora Rawhide – the .iso file
  • After installed, Plasma(Wayland) is the only option for KDE6, but I got black screen. I reported here.
  • After a few days searching, find out KDE6 needs 3D, then in VMWare Fusion, Settings for the vm, check Display->Accelerate 3D Graphics, then everything works fine.
  • But Fedora Rawhide or Fedora 40 only supports gcc 14, there is still compile failure with qtbase dev
• Arch Linux – via Archboot
  • Got KDE 6 via “plasma-meta” package group
  • It uses gcc-12 as default, then found an issue to build qtbase dev
• KDE neon
  • there is no arm64 iso yet, submitted a ticket for it

Note: 2024-03-20 updated, added Arch Linux and KDE neon.

主场作战，俩娃全都派出。

作为家长，我这次赛前注册了所有时间段的计时员工作，从周五晚(三十)到周六(初一)周日(初二)，所有时段。上次9月主场比赛，已经做过计时员了，池子里有黄色的板子(SWISS TIMING)，运动员自己触摸；红色按钮，备用数据，每50米，按一下；蓝色小盒子，再备用，运动员到达终点时，按一下。

俱乐部特别准许我去技术组实习两个时段，周四晚到场学习了一下。

整个比赛坐得最高的地方，但不是主席台。图片中，前面站立挥手的是裁判长之一(白衣白裤)；后面台子上，三个人的位置，最左面是评论员，现场评论加播报犯规记录；中间是技术长的位置，所用软件，比赛时主要用于观察总体情况，如果黄色红色数据都失效了，手工采用蓝色数据。必要时找裁判长要轮次结果校对一下。另外就是登记所有犯规记录，负责任的话，还要评审一下。最右面的，查看黄色红色数据以及现场情况，黄色失效的情况下，采用红色数据以及一些其它操作，比较忙，所用软件。

本次比赛，附近共用10几个华人子弟参赛，2011组女全国冠军领衔，还有未来2014组男女强力种子选手。华人家长中，有一位正式裁判，一位实习裁判(估计本次比赛后转正)。

大年三十，忙完比赛，到朋友家吃的流水席，非常感谢。

周四：工作时间18:30-20:30
周五：工作时间16:00-21:00
周六：工作时间09:00-17:30 08:00起床做早餐加给娃备餐
周日：工作时间09:00-17:30 07:30起床做早餐加给娃备餐

cd ~/qt
git clone git://code.qt.io/qt/qtbase.git
mkdir qtbase-build
cd qtbase-build
../qtbase/configure -developer-build -opensource -confirm-license -nomake examples -nomake tests -verbose
cmake --build . --parallel -j8

Some extra work to setup system:

sudo apt install binfmt-support
cd ~/Downloads
wget https://download.qt.io/development_releases/prebuilt/boot2qt/gatesgarth/b2qt-x86_64-meta-toolchain-b2qt-ci-sdk-qemuarm64-a9d5156a.sh
chmod +x b2qt-x86_64-meta-toolchain-b2qt-ci-sdk-qemuarm64-a9d5156a.sh
sudo ./b2qt-x86_64-meta-toolchain-b2qt-ci-sdk-qemuarm64-a9d5156a.sh -y -d /opt/b2qt/3.2
sudo update-binfmts --package qemu-aarch64 --install aarch64 /opt/b2qt/3.2/sysroots/x86_64-pokysdk-linux/usr/bin/qemu-aarch64 --magic '\x7f\x45\x4c\x46\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\xb7\x00' --mask '\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff'

Create a prefix.sh file for cross compile:

cd ~/qt
vi prefix.sh
chmod +x prefix.sh

Contents like:

#!/bin/bash
unset LD_LIBRARY_PATH
. /opt/b2qt/3.2/environment-setup-cortexa57-poky-linux
export PATH=/snap/bin/cmake:$PATH;
unset QMAKESPEC
"$@"

Build qtbase for arm64:

cd ~/qt
mkdir qtbase-arm64-build
cd qtbase-arm64-build
~/qt/prefix.sh /home/liangqi/qt/qtbase/configure -release -force-debug-info -developer-build -no-warnings-are-errors -nomake examples -qt-harfbuzz -device linux-generic-g++ -device-option CROSS_COMPILE=/opt/b2qt/3.2/sysroots/x86_64-pokysdk-linux/usr/bin/aarch64-poky-linux/aarch64-poky-linux- -device-option DISTRO_OPTS=boot2qt -no-feature-forkfd_pidfd -- -DCMAKE_TOOLCHAIN_FILE=/opt/b2qt/3.2/sysroots/x86_64-pokysdk-linux/usr/share/cmake/OEToolchainConfig.cmake -DQT_FORCE_BUILD_TOOLS=ON -DQT_HOST_PATH=/home/liangqi/qt/qtbase-build -DQT_BUILD_TESTS=OFF -DCMAKE_AUTOGEN_VERBOSE=ON -DCMAKE_MESSAGE_LOG_LEVEL=STATUS
~/qt/prefix.sh cmake --build . --parallel -j8

Build auto tests in qtbase for arm64:

cd ~/qt
mkdir qtbase-arm64-tests
cd qtbase-arm64-tests
~/qt//prefix.sh /home/liangqi/qt/qtbase-arm64-build/libexec/qt-internal-configure-tests -DCMAKE_AUTOGEN_VERBOSE=ON -DCMAKE_MESSAGE_LOG_LEVEL=STATUS -S /home/liangqi/qt/qtbase -B .
~/qt/prefix.sh cmake --build . --parallel -j8

cd tests/auto/gui/kernel/qwindow
file ./tst_qwindow

Now we can see tst_qwindow is a aarch64 binary:

./tst_qwindow: ELF 64-bit LSB pie executable, ARM aarch64, version 1 (GNU/Linux), dynamically linked, interpreter /lib/ld-linux-aarch64.so.1, BuildID[sha1]=c476475489304f84628932469d44698ae7bcb9be, for GNU/Linux 3.14.0, with debug_info, not stripped

Run it!

export QEMU_LD_PREFIX=/opt/b2qt/3.2/sysroots/cortexa57-poky-linux
export QT_QPA_PLATFORM=offscreen
./tst_qwindow

Reference:

• Yocto setup in Qt coin

Install some needed packages,

sudo apt install -y zsh build-essential perl python3 git
sudo snap install cmake --classic
sudo apt install ninja-build
sudo apt-get build-dep qtbase-opensource-src
sudo apt-get install libxcb-xinerama0-dev 
sudo apt-get install '^libxcb.*-dev' libx11-xcb-dev libglu1-mesa-dev libxrender-dev libxi-dev libxkbcommon-dev libxkbcommon-x11-dev
sudo apt-get install libdbus-1-dev libglib2.0-dev

Default gcc/g++ is 13.2.0.

Add following in env:

export MAKEFLAGS='--jobs=8'
export CMAKE_GENERATOR=Ninja

Let’s try to install multipler versions of gcc/g++:

sudo vi /etc/apt/sources.list

Add following lines in the end, then save and quit:

deb [arch=amd64] http://archive.ubuntu.com/ubuntu focal main universe
deb [arch=amd64] http://archive.ubuntu.com/ubuntu bionic main universe

sudo apt update
sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-13 130 --slave /usr/bin/g++ g++ /usr/bin/g++-13 --slave /usr/bin/gcov gcov /usr/bin/gcov-13
sudo apt install gcc-9 g++-9
sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-9 90 --slave /usr/bin/g++ g++ /usr/bin/g++-9 --slave /usr/bin/gcov gcov /usr/bin/gcov-9
sudo apt install gcc-5 g++-5
sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-5 50 --slave /usr/bin/g++ g++ /usr/bin/g++-5 --slave /usr/bin/gcov gcov /usr/bin/gcov-5
sudo apt install gcc-4.8 g++-4.8
sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-4.8 40 --slave /usr/bin/g++ g++ /usr/bin/g++-4.8 --slave /usr/bin/gcov gcov /usr/bin/gcov-4.8

You can manually select a version of gcc/g++:

sudo update-alternatives --config gcc

Check out source code of qtbase and qt(4):
Note: there are 3 patchs about SSL which is cherry-picked from https://github.com/wkhtmltopdf/qt wk_4.8.7 branch.

cd ~
mkdir qt
cd qt
git clone https://github.com/qt/qtbase.git
git clone https://github.com/liangqi/qt.git

Build dev(6.8) of qtbase: https://doc-snapshots.qt.io/qt6-dev/supported-platforms.html

cd ~/qt
mkdir qtbase-build
cd qtbase-build
../qtbase/configure -developer-build -opensource -confirm-license -nomake examples -nomake tests -verbose
cmake --build . --parallel -j8
mkdir examples
cd examples
../bin/qmake ~/qt/qtbase/examples/examples.pro
make -j8 sub-gui

Build 5.15 of qtbase: https://doc.qt.io/qt-5/supported-platforms.html
Select version 9 for gcc/g++ first.

cd ~/qt/qtbase
git worktree add ../qtbase-515-src v5.15.11-lts-lgpl
cd ~/qt
mkdir qtbase-515-build
cd qtbase-515-build
../qtbase-515-src/configure -developer-build -opensource -confirm-license -nomake examples -nomake tests -verbose
cmake --build . --parallel -j8
mkdir examples
cd examples
../bin/qmake ~/qt/qtbase/examples/examples.pro
make -j8 sub-gui

Build 5.12 of qtbase: https://doc.qt.io/archives/qt-5.12/index.html
Select version 5 for gcc/g++ first. (Perhaps other versions are also fine.)

cd ~/qt/qtbase
git worktree add ../qtbase-512-src v5.12.12
cd ~/qt
mkdir qtbase-512-build
cd qtbase-512-build
../qtbase-512-src/configure -developer-build -opensource -confirm-license -nomake examples -nomake tests -verbose
cmake --build . --parallel -j8
mkdir examples
cd examples
../bin/qmake ~/qt/qtbase/examples/examples.pro
make -j8 sub-gui

Build 4.8 of qt: https://doc.qt.io/archives/qt-4.8/supported-platforms.html
Select version 4.8 for gcc/g++ first. (Perhaps other versions are also fine.)
There are some issues about mysql plugin, we can ignore them for now.

cd ~/qt/
mkdir qt-build
cd qt-build
../qt/configure -developer-build -opensource -confirm-license -nomake examples -nomake tests -nomake tools -verbose -openssl-linked -fast
make -j8
cd demos/gradients
make

I googled a few times, I found one article helped me. Something is wrong in this file:

sudo cat /var/lib/NetworkManager/NetworkManager.state
[main]
NetworkingEnabled=false
WirelessEnabled=true
WWANEnabled=true

Anyway, I just followed the steps in the article, it works for me.

sudo service NetworkManager stop
sudo rm /var/lib/NetworkManager/NetworkManager.state
sudo service NetworkManager start

If you want to play with the edge of Qt, for example, dev branch, you can try following steps:

git clone https://github.com/liangqi/flatpak-kde-runtime.git
cd flatpak-kde-runtime
make remotes
make check
make org.kde.Sdk.app
cd repo
flatpak remote-add --user --no-gpg-verify liang-flatpak file://$(pwd)
flatpak install --user liang-flatpak org.kde.Platform
flatpak install --user liang-flatpak org.kde.Sdk

And here is an example at io.qt.examples.dropsite.yaml

git clone https://github.com/liangqi/dropsite-flatpak.git
cd dropsite-flatpak
flatpak-builder --user --install --force-clean build-dir io.qt.examples.dropsite.yaml

Thanks bbhtt for the help in matrix.to: Packaging KDE Apps in Flatpaks channel.

$ sudo add-apt-repository ppa:jonathonf/vim
$ sudo apt install vim

Reference: How to Install Latest Vim 9.0 on Ubuntu Based Linux Distributions

Configure vim to enable Qml syntax

$ cd ~
$ mkdir .vim
$ cd .vim
$ mkdir ftplugin indent syntax
$ wget -O ftplugin/qml.vim https://raw.githubusercontent.com/peterhoeg/vim-qml/master/ftplugin/qml.vim
$ wget -O indent/qml.vim https://raw.githubusercontent.com/peterhoeg/vim-qml/master/indent/qml.vim
$ wget -O syntax/qml.vim https://raw.githubusercontent.com/peterhoeg/vim-qml/master/syntax/qml.vim
$ vi ~/.vimrc

Add the following line:

autocmd BufRead,BufNewFile *.qml setfiletype qml

Configure nvim and nvim-qt

$ cd ~/.config
$ ln -s ~/.vim ./nvim
$ cd nvim
$ ln -s ~/.vimrc ./init.vim

Reference: How to share config between Vim and Neovim