交叉编译tslib和qt4.8.6的时候build报错

./build-qt

时，刚开始就报错，出错内容为：
The tslib functionality test failed!

You might need to modify the include and library search paths by editing
QMAKE_INCDIR and QMAKE_LIBDIR in
/home/johann/qt-everywhere-opensource-src-4.8.6/mkspecs/qws/linux-arm-gnueabi-g++

打开提示目录下的qmake.conf，跟教程或者网上搜索的都一样

#
# qmake configuration for building with arm-none-linux-gnueabi-g++
#

include(../../common/linux.conf)
include(../../common/gcc-base-unix.conf