linux交叉编译的库在链接时提示uses VFP register arguments

Question

arm-none-linux-gnueabi-g++ -Wl,-O1 -Wl,-rpath,/opt/Qt-5.3.2/armv7-a/lib -o qtmeeting main.o mainwindow.o moc_mainwindow.o -L/mnt/hgfs/code/project/meeting/qtmeeting/lib/ -lwebrtc -L/opt/Qt-5.3.2/armv7-a/lib -lQt5Widgets -lQt5Gui -lQt5Core -lpthread
/usr/local/arm-2014.05/bin/../lib/gcc/arm-none-linux-gnueabi/4.8.3/../../../../arm-none-linux-gnueabi/bin/ld: error: /mnt/hgfs/code/project/meeting/qtmeeting/lib//libwebrtc.a(new.o) uses VFP register arguments, qtmeeting does not
/usr/local/arm-2014.05/bin/../lib/gcc/arm-none-linux-gnueabi/4.8.3/../../../../arm-none-linux-gnueabi/bin/ld: failed to merge target specific data of file /mnt/hgfs/code/project/meeting/qtmeeting/lib//libwebrtc.a(new.o)
/usr/local/arm-2014.05/bin/../lib/gcc/arm-none-linux-gnueabi/4.8.3/../../../../arm-none-linux-gnueabi/bin/ld: error: /mnt/hgfs/code/project/meeting/qtmeeting/lib//libwebrtc.a(cxa_exception.o) uses VFP register arguments, qtmeeting does not
/usr/local/arm-2014.05/bin/../lib/gcc/arm-none-linux-gnueabi/4.8.3/../../../../arm-none-linux-gnueabi/bin/ld: failed to merge target specific data of file /mnt/hgfs/code/project/meeting/qtmeeting/lib//libwebrtc.a(cxa_exception.o)
/usr/local/arm-2014.05/bin/../lib/gcc/arm-none-linux-gnueabi/4.8.3/../../../../arm-none-linux-gnueabi/bin/ld: error: /mnt/hgfs/code/project/meeting/qtmeeting/lib//libwebrtc.a(cxa_exception_storage.o) uses VFP register arguments, qtmeeting does not
/usr/local/arm-2014.05/bin/../lib/gcc/arm-none-linux-gnueabi/4.8.3/../../../../arm-none-linux-gnueabi/bin/ld: failed to merge target specific data of file /mnt/hgfs/code/project/meeting/qtmeeting/lib//libwebrtc.a(cxa_exception_storage.o)

Answer 1

总算遇到能回答的问题了
假设测试程序为 test.c。
硬浮点交叉编译:
arm-linux-gcc -march=armv7-a -mfpu=neon -mfloat-abi=hard -o test test.c
求20分