rust: procedural macros do not support LTO #15319
Open
+35
−24
Conversation
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
Signed-off-by: Paolo Bonzini <[email protected]>
Attempting to use LTO on e.g. a procedural macro crate fails with error: lto cannot be used for proc-macro crate type without -Zdylib-lto Do not return -Clto for such crate types. Signed-off-by: Paolo Bonzini <[email protected]>
bonzini
force-pushed
the
rust-proc-macro-disable-lto
branch
from
30f0d90 to
1883fbb
Compare
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
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Outdated suggestions cannot be applied.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.
Attempting to use LTO on a procedural macro crate fails with
error: lto cannot be used for proc-macro crate type without -Zdylib-lto
This is new in 1.10 because earlier versions did not support LTO for Rust. Automatically override -Db_lto in the rust.proc_macro method.