Ubuntu 安装 Qt 5.9时，报错：undefined symbol : FT_Get_Font_Format 解决办法
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wget http://download.savannah.gnu.org/releases/freetype/freetype-2.10.0.tar.bz2
tar -xf freetype-2.10.0.tar.bz2
cd freetype-2.10.0
./configure --prefix=/opt/Qt5.12.3/Tools/QtCreator/lib/Qt/
make
cd ./objs/.libs
sudo cp libfreetype.so /opt/Qt5.12.3/Tools/QtCreator/lib/Qt/lib
sudo cp libfreetype.so.6 /opt/Qt5.12.3/Tools/QtCreator/lib/Qt/lib
sudo cp libfreetype.so.6.17.0 /opt/Qt5.12.3/Tools/QtCreator/lib/Qt/lib标签：opt,freetype,FT,Qt,lib,报错,QtCreator,Qt5.12 来源： https://www.cnblogs.com/rixiang/p/14672784.html