How to build with WASM

[gitmalong]

Hi!

I added gluesql to my project

gluesql = { version = "0.14.0", features = ["idb-storage"] }

but when trying to build it from a project based on https://github.com/leptos-rs/leptos/tree/main/examples/tailwind_csr_trunk I am facing

error[E0583]: file not found for module `sys`
  --> /Users/user/.cargo/registry/src/index.crates.io-6f17d22bba15001f/errno-0.3.2/src/lib.rs:26:1
   |
26 | mod sys;
   | ^^^^^^^^

How can I make the WASM build work?

Thanks

[Taehoon Moon]

to make your project to work on wasm build, you can not use sys module.

in the error message you shared, it looks that you are using errno crate.
https://github.com/lambda-fairy/rust-errno

that errno crate does not support wasm build so you would be better to remove it from your project.

[gitmalong]

The starter project I shared compiles to WASM and the only thing I changed was adding the gluesql dependency. errno is part of the gluesql dependency tree

├── gluesql v0.14.0
│   ├── gluesql-cli v0.14.0
│   │   ├── anyhow v1.0.72
│   │   ├── clap v3.2.25
│   │   │   ├── atty v0.2.14
│   │   │   │   └── libc v0.2.147
│   │   │   ├── bitflags v1.3.2
│   │   │   ├── clap_derive v3.2.25 (proc-macro)
│   │   │   │   ├── heck v0.4.1
│   │   │   │   ├── proc-macro-error v1.0.4
│   │   │   │   │   ├── proc-macro-error-attr v1.0.4 (proc-macro)
│   │   │   │   │   │   ├── proc-macro2 v1.0.66 (*)
│   │   │   │   │   │   └── quote v1.0.32 (*)
│   │   │   │   │   │   [build-dependencies]
│   │   │   │   │   │   └── version_check v0.9.4
│   │   │   │   │   ├── proc-macro2 v1.0.66 (*)
│   │   │   │   │   ├── quote v1.0.32 (*)
│   │   │   │   │   └── syn v1.0.109
│   │   │   │   │       ├── proc-macro2 v1.0.66 (*)
│   │   │   │   │       ├── quote v1.0.32 (*)
│   │   │   │   │       └── unicode-ident v1.0.11
│   │   │   │   │   [build-dependencies]
│   │   │   │   │   └── version_check v0.9.4
│   │   │   │   ├── proc-macro2 v1.0.66 (*)
│   │   │   │   ├── quote v1.0.32 (*)
│   │   │   │   └── syn v1.0.109 (*)
│   │   │   ├── clap_lex v0.2.4
│   │   │   │   └── os_str_bytes v6.5.1
│   │   │   ├── indexmap v1.9.3
│   │   │   │   └── hashbrown v0.12.3
│   │   │   │       └── ahash v0.7.6
│   │   │   │           ├── getrandom v0.2.10
│   │   │   │           │   ├── cfg-if v1.0.0
│   │   │   │           │   └── libc v0.2.147
│   │   │   │           └── once_cell v1.18.0
│   │   │   │           [build-dependencies]
│   │   │   │           └── version_check v0.9.4
│   │   │   │   [build-dependencies]
│   │   │   │   └── autocfg v1.1.0
│   │   │   ├── once_cell v1.18.0
│   │   │   ├── strsim v0.10.0
│   │   │   ├── termcolor v1.2.0
│   │   │   └── textwrap v0.16.0
│   │   ├── edit v0.1.4
│   │   │   ├── tempfile v3.8.0
│   │   │   │   ├── cfg-if v1.0.0
│   │   │   │   ├── fastrand v2.0.0
│   │   │   │   └── rustix v0.38.8
│   │   │   │       ├── bitflags v2.4.0
│   │   │   │       ├── errno v0.3.2
│   │   │   │       │   └── libc v0.2.147
│   │   │   │       └── libc v0.2.147
│   │   │   └── which v4.4.0
│   │   │       ├── either v1.9.0
│   │   │       └── libc v0.2.147

[Jiseok CHOI]

This is because pkg/rust in gluesql contains the cli project.
Get gluesql-core and gluesql-idb-storage separately and try to build them.

[Jiseok CHOI]

Has this issue been resolved as well? ref #1377

[gitmalong]

This is because pkg/rust in gluesql contains the cli project. Get gluesql-core and gluesql-idb-storage separately and try to build them.

Using these packages and adding this to .cargo/config made it work for me:

[build]
target = "wasm32-unknown-unknown"