Ensure that static_crt is set in the bootstrapper whenever using cc-rs to get a compiler command line.#98434
Merged
bors merged 1 commit intorust-lang:masterfrom Jun 29, 2022
Merged
Conversation
Contributor
|
(rust-highfive has picked a reviewer for you, use r? to override) |
rust-highfive
added
the
S-waiting-on-review
jyn514
added
T-bootstrap
…c` to get a compiler command line. When attempting to build rustc with LLVM on Windows, I noticed that the CRT flag provided to the C and C++ Compilers was inconsistent: ``` "-DCMAKE_C_FLAGS=-nologo -MT -Brepro" "-DCMAKE_CXX_FLAGS=-nologo -MD -Brepro" ``` Since the bootstrapper also sets the various `LLVM_USE_CRT` variables, this resulted in cl.exe reporting a bunch of warnings: ``` cl : Command line warning D9025 : overriding '/MD' with '/MT' ``` The root cause for this is that `cc_detect::find` was creating a `cc::Build` twice, but didn't set `static_crt` the second time. It's possible that this what is also causing rust-lang#81381
Member
|
@bors r+ |
Collaborator
|
📌 Commit 1fca246 has been approved by |
bors
added
S-waiting-on-bors
GuillaumeGomez
added a commit
to GuillaumeGomez/rust
that referenced
this pull request
Jun 29, 2022
Ensure that `static_crt` is set in the bootstrapper whenever using `cc-rs` to get a compiler command line. When attempting to build rustc with LLVM on Windows, I noticed that the CRT flag provided to the C and C++ Compilers was inconsistent: ``` "-DCMAKE_C_FLAGS=-nologo -MT -Brepro" "-DCMAKE_CXX_FLAGS=-nologo -MD -Brepro" ``` Since the bootstrapper also sets the various `LLVM_USE_CRT` variables, this resulted in cl.exe reporting a bunch of warnings: ``` cl : Command line warning D9025 : overriding '/MD' with '/MT' ``` The root cause for this is that `cc_detect::find` was creating a `cc::Build` twice, but didn't set `static_crt` the second time. It's possible that this what is also causing rust-lang#81381
bors
added a commit
to rust-lang-ci/rust
that referenced
this pull request
Jun 29, 2022
…askrgr Rollup of 10 pull requests Successful merges: - rust-lang#98434 (Ensure that `static_crt` is set in the bootstrapper whenever using `cc-rs` to get a compiler command line.) - rust-lang#98636 (Triagebot: Fix mentions word wrapping.) - rust-lang#98642 (Fix rust-lang#98260) - rust-lang#98643 (Improve pretty printing of valtrees for references) - rust-lang#98646 (rustdoc: fix bugs in main.js popover help and settings) - rust-lang#98647 (Update cargo) - rust-lang#98652 (`alloc`: clean and ensure `no_global_oom_handling` builds are warning-free) - rust-lang#98660 (Unbreak stage1 tests via ignore-stage1 in `proc-macro/invalid-punct-ident-1.rs`.) - rust-lang#98665 (Use verbose help for deprecation suggestion) - rust-lang#98668 (Avoid some `&str` to `String` conversions with `MultiSpan::push_span_label`) Failed merges: r? `@ghost` `@rustbot` modify labels: rollup
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
6 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
When attempting to build rustc with LLVM on Windows, I noticed that the CRT flag provided to the C and C++ Compilers was inconsistent:
Since the bootstrapper also sets the various
LLVM_USE_CRTvariables, this resulted in cl.exe reporting a bunch of warnings:The root cause for this is that
cc_detect::findwas creating acc::Buildtwice, but didn't setstatic_crtthe second time.It's possible that this what is also causing #81381