Error: rest_client.nga:54: attempt to yield across C-call boundary

[shortweekend]

sample$ nyanga rest_client.nga 
Error: rest_client.nga:54: attempt to yield across C-call boundary
stack traceback:
    [C]: in function 'yield'
    rest_client.nga:54: in function 'main'
    src/main.lua:182: in function 'runopt'
    src/main.lua:188: in main chunk
    [C]: at 0x010cb1e930

Just reporting ;) No clue what's wrong.

system.nga seems to suffer from the same problem:

sample$ nyanga system.nga 
waiting...
tick 2
tick 1
answer 42.
Error: system.nga:42: attempt to yield across C-call boundary
stack traceback:
    [C]: in function 'yield'
    system.nga:42: in function 'main'
    src/main.lua:182: in function 'runopt'
    src/main.lua:188: in main chunk
    [C]: at 0x01055a8930

[richardhundt]

same issue with exports... fixed, thanks