error "import object field 'call_host_function' is not a Function" for self-built zeroperl.wasm

[ikg1hd]

Hi,

I could build zeroperl.wasm but I'm getting an error when using it.

I ran the 3 commands from the README.md, only adding --build-arg EXIFTOOL_VERSION=13.57, with docker on openSUSE 15.6.

However, when I use it with local copies of the scripts from https://metadata.jp, the error

import object field 'call_host_function' is not a Function

is reported. There is no such error if I use a local copy of https://perl.objex.ai/zeroperl-1.0.0.wasm, all other things being identical.

Where could I start looking for the cause?

Thanks!

Kind regards
Thomas

[mt211211]

I opened #24 with a focused fix for this. The default build no longer requires env.call_host_function, so a README-built zeroperl.wasm should match the hosted WASI-only import shape used by the metadata.jp wrapper. Callback-enabled builds can still opt in with --build-arg ENABLE_HOST_CALLBACKS=true.