dlopen() a Linux library on FreeBSD fails

[ko56]

cc @iblis17
cc @ararslan"

The following C program works fine:

// needs export LD_LIBRARY_PATH=/compat/linux/usr/lib64 in order to work!
#include <dlfcn.h>
#include <stdio.h>
int main() {
  void *lib = dlopen("/compat/linux/usr/lib64/libc.so.6", RTLD_LAZY);
  char *e = dlerror();
  if (e) {
    printf("Crap! %s\n", e);
   }
  else {
    printf("Ok!\n");
  }
  dlclose(lib);
}

However, trying to do the same thing in Julia doesn't seem to work:

[ko@kzin ~]$ julia
               _
   _       _ _(_)_     |  A fresh approach to technical computing
  (_)     | (_) (_)    |  Documentation: https://docs.julialang.org
   _ _   _| |_  __ _   |  Type "?help" for help.
  | | | | | | |/ _` |  |
  | | |_| | | | (_| |  |  Version 0.6.0 (2017-06-19 13:05 UTC)
 _/ |\__'_|_|_|\__'_|  |  
|__/                   |  amd64-unknown-freebsd11.1

julia> ENV["LD_LIBRARY_PATH"] = "/compat/linux/usr/lib64";
julia> Libdl.dlopen("/compat/linux/usr/lib64/libc.so.6", Libdl.RTLD_LAZY)
ERROR: could not load library "/compat/linux/usr/lib64/libc.so.6"
Shared object "ld-linux-x86-64.so.2" not found, required by "libc.so.6"
Stacktrace:
 [1] dlopen at ./libdl.jl:97

julia> 

[yuyichao]

LD_LIBRARY_PATH usually cannot be set after program start (I can't say for FreeBSD for sure though). Please comment for reopen if that doesn't fix it.