1. 编译安装 tslib时遇到的问题：
configure: WARNING: unrecognized options: --enable-inputapi;
解决：可以把enable-inputapi改成enable-input；
本人直接忽略此WARNING
2. 编译QT库时遇到的问题
You have not explicitly asked to use pkg-config and are cross-compiling.
pkg-config will not be used to automatically query cflag/lib parameters for
Dependencies.
解决：设置环境变量
export TSLIB_ROOT=/usr/local/arm/tslib
export PKG_CONFIG_PATH=$TSLIB_ROOT/lib/pkgconfig:$PKG_CONFIG_PATH
export LD_LIBRARY_PATH=$TSLIB_ROOT/lib:$LD_LIBRARY_PATH
