[intl4x] Issue with Native Assets Library Resolution in Dart Executables

[aliyazdi75]

When using the native-assets build feature in Dart, the executable fails to locate shared libraries (.so files) if the lib folder is placed in the same directory as the executable. It appears the executable is attempting to resolve the shared libraries relative to the above parent path.

The command:

dart --enable-experiment=native-assets build bin/main.dart --target-os=linux -o ./build  --target-os=linux -o ./build && mv ./build/main.exe ./build/exec

The output on running the app with the lib folder in the same directory as exe file:

ERROR: Invalid argument (5): Couldn't resolve native function 'ICUXDataProvider_create_compiled' in 'package:int14x/src/bindings/lib.g.dart': Failed to load dynamic library
'lib/libicu4x.so' relative to '/var/home/users/$USER/child/lib/exec': Failed to load dynamic library '/var/homeusersmountpoint/$USER/lib/libicu4x.so': /var/homeusersmountpoint/$USER/lib/libicu4x.so: cannot open shared object file: No such file or directory.

Expected Behavior:
I think if I'm not mistaken, the executable should locate the shared libraries from the lib folder in the same directory by default.

Actual Behavior:
The executable attempts to resolve the shared libraries from a parent directory or other unexpected paths, resulting in the error. This behaviour requires manually moving the lib folder one directory above the executable to work.

Note that I'm not sure if this is native-cli issue or intl4x.

[aliyazdi75]

/cc @mosuem we found another one 😄

[mosuem]

So you mean the structure which is generated is

build/
  lib/intl4x.so
  app.exe

But what you actually have to manually do to make it work is

lib/intl4x.so
build/
  app.exe

?

[aliyazdi75]

@mosuem Yes exactly. only the lib is called libicu4x.so.

[mosuem]

I will try to reproduce this with the newest versions of native_*

cc @dcharkes