$ sh -x xxx.sh 
+ cd qt5/src
+ g++ -DHAVE_CONFIG_H -I. -I../.. -I../../poppler -I../.. -I../../poppler -I/usr/include/x86_64-linux-gnu/qt5/QtXml -I/usr/include/x86_64-linux-gnu/qt5 -I/usr/include/x86_64-linux-gnu/qt5/QtWidgets -I/usr/include/x86_64-linux-gnu/qt5 -I/usr/include/x86_64-linux-gnu/qt5/QtGui -I/usr/include/x86_64-linux-gnu/qt5 -I/usr/include/x86_64-linux-gnu/qt5/QtCore -I/usr/include/x86_64-linux-gnu/qt5 -D_FORTIFY_SOURCE=2 -fvisibility=hidden -fvisibility-inlines-hidden -Dpoppler_qt5_EXPORTS -fPIC -fPIC -Wall -Woverloaded-virtual -Wnon-virtual-dtor -Wcast-align -fno-exceptions -fno-check-new -fno-common -g -O2 -fstack-protector-strong -Wformat -Werror=format-security -c poppler-document.cc -fPIE -o libpoppler_qt5_la-poppler-document.o
In file included from /usr/include/x86_64-linux-gnu/qt5/QtCore/qchar.h:37:0,
                 from /usr/include/x86_64-linux-gnu/qt5/QtCore/qstring.h:37,
                 from /usr/include/x86_64-linux-gnu/qt5/QtCore/qdatetime.h:37,
                 from /usr/include/x86_64-linux-gnu/qt5/QtCore/QDateTime:1,
                 from poppler-annotation.h:31,
                 from poppler-qt5.h:37,
                 from poppler-document.cc:27:
/usr/include/x86_64-linux-gnu/qt5/QtCore/qglobal.h:1052:4: error: #error "You must build your code with position independent code if Qt was built with -reduce-relocations. " "Compile your code with -fPIC (-fPIE is not enough)."
 #  error "You must build your code with position independent code if Qt was built with -reduce-relocations. "\
    ^