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使用海思uclibc工具链编译ARM版本的HostMonitor示例时，出现如下错误：
~/GuiLiteSamples/HostMonitor/BuildLinux/main.cpp:8:22: fatal error: execinfo.h: No such file or directory

通过注释掉main.cpp文件中的include<execinfo.h>发现可以正常编译通过，可能这个包含不是必须的，建议移除掉。

此外在链接阶段，GCC-4.9.4依然会出现前面提出的issue #24

The examples go against (my) privacy expectations for open-source projects in 2 points:

• all examples try to call home (powerbi.com) via the "hidden" file .sync_build.sh on Linux; this should be opt-in, not something by-default and without a visible notice (yes, I know this is metioned in https://github.com/idea4good/GuiLite#hero-features).
• instructions suggest to run binary-distributed xWindow (which is already a red flag) with sudo — seriously...?!

错误信息如下：
[ 95%] Built target UIcode
[ 97%] Linking CXX executable HostMonitor
Undefined symbols for architecture x86_64:
"c_bitmap::draw_bitmap(c_surface*, int, struct_bitmap_info const*, int, int, unsigned int)", referenced from:
c_bitmap_wave_ctrl::on_paint() in libUIcode.a(wave_ctrl_ex.cpp.o)
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make[2]: *** [BuildMacCmd/HostMonitor] Error 1
make[1]: *** [BuildMacCmd/CMakeFiles/HostMonitor.dir/all] Error 2
make: *** [all] Error 2

建议给GuiLiteSamples写个说明文档，readme说明内容有点少。

When I run BuildLinux/HelloGuiLite /dev/fb0, it shows:

and the command line output:

Why ? Can anyone help?

system: CentOS Linux release 7.6.1810 (Core) (official minimal installation)
platform: VMWare 12.5.2 800M RAM

• 编译测试环境：VirtualBox 5.2.10 ,Ubuntu 18.04 64bit GNOME桌面环境
• 示例编译运行：编译构建成功，使用display-x64来运行示例
• 示例测试结果：除了HostMonitor显示正常外，其他示例均显示不正常，具体请看如下截图

HelloAnimation Sample：

HelloFont Sample:

HelloGuiLite Sample:

Hello Particle Sample:

HelloSlide Sample:

HelloWave Sample:

[OK]HostMonitor Sample:

Hi,

I liked GuiLite project and the sample which you have showcased is awesome.
I'm a QT developer i have checked the samples and didn't found the waveform drawing in QT application.
Is waveform drawing is possible in QT widget?.
I have planned to use this toolkit for drawing audio waveform please suggest me, how we can use it in QT widget.

Thanks,
Sundaram

这是最后的示提（前面还有很多都是 -fPIC 的）：
/usr/bin/ld: /home/C/GuiLiteSamples/HostMonitor/BuildLinux/libs/libcore.a(msg_linux.cpp.o): relocation R_X86_64_32 against .bss' can not be used when making a shared object; recompile with -fPIC
/usr/bin/ld: 最后的链结失败: 输出不可表示的节
collect2: error: ld returned 1 exit status
CMakeFiles/sample_native.dir/build.make:120: recipe for target 'sample_native' failed
make[2]: *** [sample_native] Error 1
CMakeFiles/Makefile2:67: recipe for target 'CMakeFiles/sample_native.dir/all' failed
make[1]: *** [CMakeFiles/sample_native.dir/all] Error 2
Makefile:83: recipe for target 'all' failed
make: *** [all] Error 2`

linux下，HelloGuiLite 的 FB_APP_MODE 模式不能显示，只能使用截图功能。

Running a GUILiteDemo on macOS Monterey and see a lot of flickering, see a screencast below

it's a bit slower at the time I was recording it, but after some idle running, the flicker increases.
Also, rendering stops when selecting a menu.

下载太慢了, 入驻 gitee 吧?

VS2017在Windows10中构建HostMonitor示例，运行后如下图，界面效果不一致，而且鼠标操作时会出现运行时错误：

I running at gui mode use xcode. but demo allways occupy highly cpu resource(about 500%) at my macbook pro.

I use macbook pro 2017 15'，macOS 10.12.3.

would you do it in the future?

为什么我将工程移植到stm32f407zgt6后，有些工程项目无法显示。比如3dwave和mario。其他的都可以比如wave和3d就可以显示但不知道什么原因。

能否出一个基于原生Win32 API的例子，而不是MFC。

HostMonitor示例在Ubuntu18.04和Ubuntu16.04（GCC-5.4.0）上编译OK，但是在Ubuntu 14.04（GCC-4.8.4）上编译出现链接失败错误：

[100%] Linking CXX executable HostMonitor
~/GuiLiteSamples/HostMonitor/BuildLinux/libs/libgui.a(button.cpp.o): In function `c_button::clone()':
button.cpp:(.text._ZN8c_button5cloneEv[_ZN8c_button5cloneEv]+0x4b): undefined reference to `operator delete(void*, unsigned long)'
~/GuiLiteSamples/HostMonitor/BuildLinux/libs/libgui.a(edit.cpp.o): In function `c_edit::clone()':
edit.cpp:(.text._ZN6c_edit5cloneEv[_ZN6c_edit5cloneEv]+0x4b): undefined reference to `operator delete(void*, unsigned long)'
~/GuiLiteSamples/HostMonitor/BuildLinux/libs/libgui.a(edit.cpp.o): In function `c_keyboard::~c_keyboard()':
edit.cpp:(.text._ZN10c_keyboardD0Ev[_ZN10c_keyboardD5Ev]+0x25): undefined reference to `operator delete(void*, unsigned long)'
~/GuiLiteSamples/HostMonitor/BuildLinux/libs/libgui.a(keyboard.cpp.o): In function `c_keyboard::clone()':
keyboard.cpp:(.text._ZN10c_keyboard5cloneEv[_ZN10c_keyboard5cloneEv]+0x4b): undefined reference to `operator delete(void*, unsigned long)'
~/GuiLiteSamples/HostMonitor/BuildLinux/libs/libgui.a(keyboard.cpp.o): In function `c_keyboard_button::clone()':
keyboard.cpp:(.text._ZN17c_keyboard_button5cloneEv[_ZN17c_keyboard_button5cloneEv]+0x4b): undefined reference to `operator delete(void*, unsigned long)'
~/GuiLiteSamples/HostMonitor/BuildLinux/libs/libgui.a(keyboard.cpp.o):keyboard.cpp:(.text._ZN17c_keyboard_buttonD0Ev[_ZN17c_keyboard_buttonD5Ev]+0x25): more undefined references to `operator delete(void*, unsigned long)' follow
~/GuiLiteSamples/HostMonitor/BuildLinux/libs/libcore.a(display.cpp.o): In function `c_display::snap_shot(char const*)':
display.cpp:(.text+0x9b4): undefined reference to `__cxa_throw_bad_array_new_length'
~/GuiLiteSamples/HostMonitor/BuildLinux/libs/libcore.a(wave_ctrl.cpp.o): In function `c_wave_ctrl::clone()':
wave_ctrl.cpp:(.text._ZN11c_wave_ctrl5cloneEv[_ZN11c_wave_ctrl5cloneEv]+0x35): undefined reference to `operator delete(void*, unsigned long)'
collect2: error: ld returned 1 exit status
make[2]: *** [BuildLinux/HostMonitor] Error 1
make[1]: *** [BuildLinux/CMakeFiles/HostMonitor.dir/all] Error 2
make: *** [all] Error 2

兄弟，你能不能写个涵盖大部分使用方法或者是函数的文档啊，感觉看起来好累啊……