Segmentation fault on Ubuntu 16.04（64bit）

[hitsjt]

hi,
I tried to build a upx using your modified lzma and upx 3.9.5 source code on a 64 bit ubuntu 16.04.
And when i used ./upx.out --lzma -o ls_upx ls to pack ls,it worked fine.But when i executed ls_upx,the program could not run,i got Segmentation fault error.

Do you have any idea on solving this problem?
Thanks.