| Summary: | dev-lang/mrustc: requires CC=gcc to build Rust code | ||
|---|---|---|---|
| Product: | Gentoo Linux | Reporter: | Matt Jolly <kangie> |
| Component: | Current packages | Assignee: | Matt Jolly <kangie> |
| Status: | CONFIRMED --- | ||
| Severity: | normal | CC: | kangie, rust |
| Priority: | Normal | ||
| Version: | unspecified | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Package list: | Runtime testing required: | --- | |
| Attachments: | mrustc-0.11.2-compiler_is_gcc.patch | ||
Created attachment 917117 [details, diff] mrustc-0.11.2-compiler_is_gcc.patch dev-lang/mrustc requires CC=gcc when building Rust code. A quick and dirty patch (attached) prevents mrustc from passing GCC-specific arguments to Clang, however Clang fails to compile the transpiled `compiler_builtins` rust sources when building the mrustc stdlib: ``` output-1.74.0/libcompiler_builtins-0_1_101_H10c.rlib.c:14350:84: error: invalid input constraint '0' in asm 14350 | __asm__ __volatile__("div %2;\n " : "+r" (asm_rax), "+r" (asm_rdx) : "r" (var48), "0" (asm_rax), "1" (... | ^ output-1.74.0/libcompiler_builtins-0_1_101_H10c.rlib.c:14400:83: error: invalid input constraint '0' in asm 14400 | __asm__ __volatile__("div %2;\n " : "+r" (asm_rax), "+r" (asm_rdx) : "r" (var3), "0" (asm_rax), "1" (a... | . . . ``` This is not really unexpected - GCC is the supported upstream compiler. Still, we can see if there's an easy win here, or someone that knows compilers better than I can have a go at making CC=clang work.