rust-lang / rust-lang/rust-bindgen
--target=wasm32-unknown-unknown: 'stdio.h' file not found
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Description
Input C/C++ Header
#include <stdio.h>
Bindgen Invocation
bindgen ./test.h -o test.rs -- --target=wasm32-unknown-unknown
stdlib.h, inttypes.h, string.h, assert.h also have the same problem
Actual Results
./test.h:1:10: fatal error: 'stdio.h' file not found
panicked at bindgen-cli/main.rs:52:36:
Unable to generate bindings: ClangDiagnostic("./test.h:1:10: fatal error: 'stdio.h' file not found\n")
Expected Results
No errors and compiled successfully
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Reproduce the failure with test.h containing <cstdio.h> and the bindgen command using --target=wasm32-unknown-unknown; inspect the diagnostic path referenced at bindgen-cli/main.rs:52. Done means the standard headers resolve for this target and bindings generate without the reported stdio.h, stdlib.h, inttypes.h, string.h, or assert.h errors.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cpp, rust, wasm
- Domain
- compilers, devtools
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100