解决lazarus 3.xx后在linux编译为Qt出错方法

今天用lazarus 3.4在银河麒麟将应用编译为Qt5出现以下错误信息：

Warning: linker: /usr/bin/ld.bfd: /home/lb/fpcupdeluxe34/lazarus/lcl/units/aarch64-linux/qt5/qtint.o: in function `QTINT$_$TQTWIDGETSET_$__$$_CREATE$$TQTWIDGETSET':
Error: qtint.pp:(.text.n_qtint$_$tqtwidgetset_$__$$_create$$tqtwidgetset+0x120): undefined reference to `QGuiApplication_setFallbackSessionManagementEnabled'
Warning: linker: /usr/bin/ld.bfd: /home/lb/fpcupdeluxe34/lazarus/lcl/units/aarch64-linux/qt5/qtobjects.o: in function `QTOBJECTS$_$TQTCLIPBOARD_$__$$_ENDX11SELECTIONLOCK':
Error: qtobjects.pas:(.text.n_qtobjects$_$tqtclipboard_$__$$_endx11selectionlock+0x58): undefined reference to `QTimer_singleShot3'
project1.lpr(27,0) Error: Error while linking

解决方法：
很简单（不要见笑），就用早期的QT5替换lazarus 3.4的版本
旧版的QT5可以从123云盘下载后替换（/lazarus/lcl/interfaces/qt5）就可以：
https://www.123pan.com/s/6OFxjv-qBdu3?提取码:wjGr