dataset link has expired

[lllray]

https://github.com/ethz-asl/aerial_mapper/wiki/How-to-run
I want to run this project, but i found the dataset link invalid.

[lebronzzw]

Friend, have you ever had such a problem?
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/7/../../../x86_64-linux-gnu/libgflags.a(gflags.cc.o): relocation R_X86_64_PC32 against symbol `stderr@@GLIBC_2.2.5' can not be used when making a shared object; recompile with -fPIC