交叉编译器是3.4.1
<command line>:1: sorry, unimplemented: had to relocate PCH
<command line>:1: confused by earlier errors, bailing out
gmake[1]: *** [.obj/release-shared-emb-arm/harfbuzz-gpos.o] Error 1
gmake[1]: Leaving directory `/opt/EmbedSky/qt-4.5/build/build_arm/src/corelib'
gmake: *** [sub-corelib-make_default-ordered] Error 2
