Correct SPDX identifier to "MIT OR (Apache-2.0 AND NCSA)" #511
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Assigning to @pnkfelix since this is license-related. |
tgross35
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Oct 25, 2024
Currently, Cargo.toml specifies Apache-2.0 OR MIT, but LICENSE.txt describes MIT OR NCSA. compiler-builtins is derived from LLVM's compiler-rt. LICENSE.txt correctly reflects the state of compiler-rt prior to relicensing on 2019-01-19, during which time software was available for use under either MIT or the University of Illinois NCSA license. After relicensing, however, compiler-rt is available for use only under Apache-2.0 with the LLVM exception; this is not reflected anywhere in the repository. Update the SPDX license identifier to `Apache-2.0 WITH LLVM-exception AND MIT AND (MIT OR Apache-2.0)`. Each AND portion covers something specific: * Apache-2.0 WITH LLVM-exception: this covers work that is derived from the LLVM repository since after the LLVM relicensing. * MIT: This covers work that is derived from LLVM before the LLVM relicensing (under MIT OR NCSA). * MIT AND Apache-2.0: This ensures that any contributions to this repository, in addition to meeting the above required licenses, is also released for use under the Rust-standard Apache-2.0 with no LLVM exception. Fixes: rust-lang#307 Closes: rust-lang#511
tgross35
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Oct 25, 2024
Currently, Cargo.toml specifies Apache-2.0 OR MIT, but LICENSE.txt describes MIT OR NCSA. compiler-builtins is derived from LLVM's compiler-rt. LICENSE.txt correctly reflects the state of compiler-rt prior to relicensing on 2019-01-19, during which time software was available for use under either MIT or the University of Illinois NCSA license. After relicensing, however, compiler-rt is available for use only under Apache-2.0 with the LLVM exception; this is not reflected anywhere in the repository. Update the SPDX license identifier to `Apache-2.0 WITH LLVM-exception AND MIT AND (MIT OR Apache-2.0)`. Each AND portion covers something specific: * Apache-2.0 WITH LLVM-exception: this covers work that is derived from the LLVM repository since after the LLVM relicensing. * MIT: This covers work that is derived from LLVM before the LLVM relicensing (under MIT OR NCSA). * MIT AND Apache-2.0: This ensures that any contributions to this repository, in addition to meeting the above required licenses, is also released for use under the Rust-standard Apache-2.0 with no LLVM exception. Fixes: rust-lang#307 Closes: rust-lang#511 Link: https://rust-lang.zulipchat.com/#narrow/channel/335408-foundation/topic/Request.20for.20legal.20team.20input.20on.20crate.20licensing
tgross35
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Oct 25, 2024
Currently, Cargo.toml specifies Apache-2.0 OR MIT, but LICENSE.txt describes MIT OR NCSA. compiler-builtins is derived from LLVM's compiler-rt. LICENSE.txt correctly reflects the state of compiler-rt prior to relicensing on 2019-01-19, during which time software was available for use under either MIT or the University of Illinois NCSA license. After relicensing, however, compiler-rt is available for use only under Apache-2.0 with the LLVM exception; this is not reflected anywhere in the repository. Update the SPDX license identifier to `Apache-2.0 WITH LLVM-exception AND MIT AND (MIT OR Apache-2.0)`. Each AND portion covers something specific: * Apache-2.0 WITH LLVM-exception: this covers work that is derived from the LLVM repository since after the LLVM relicensing. * MIT: This covers work that is derived from LLVM before the LLVM relicensing (under MIT OR NCSA). * MIT AND Apache-2.0: This ensures that any contributions to this repository, in addition to meeting the above required licenses, is also released for use under the Rust-standard Apache-2.0 with no LLVM exception. See also the parallel license update in rust-lang/libm [1]. Fixes: rust-lang#307 Closes: rust-lang#511 Link: https://rust-lang.zulipchat.com/#narrow/channel/335408-foundation/topic/Request.20for.20legal.20team.20input.20on.20crate.20licensing Link: rust-lang/libm#317 [1]
tgross35
added a commit
to tgross35/compiler-builtins
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Oct 25, 2024
Currently, Cargo.toml specifies Apache-2.0 OR MIT, but LICENSE.txt describes MIT OR NCSA. compiler-builtins is derived from LLVM's compiler-rt. LICENSE.txt correctly reflects the state of compiler-rt prior to relicensing on 2019-01-19, during which time software was available for use under either MIT or the University of Illinois NCSA license. After relicensing, however, compiler-rt is available for use only under Apache-2.0 with the LLVM exception; this is not reflected anywhere in the repository. Update the SPDX license identifier to `Apache-2.0 WITH LLVM-exception AND MIT AND (MIT OR Apache-2.0)`. Each AND portion covers something specific: * Apache-2.0 WITH LLVM-exception: this covers work that is derived from the LLVM repository since after the LLVM relicensing. * MIT: This covers work that is derived from LLVM before the LLVM relicensing (under MIT OR NCSA). * MIT AND Apache-2.0: This ensures that any contributions to this repository, in addition to meeting the above required licenses, is also released for use under the Rust-standard Apache-2.0 with no LLVM exception. See also the parallel license update in rust-lang/libm [1]. Fixes: rust-lang#307 Closes: rust-lang#511 Link: https://rust-lang.zulipchat.com/#narrow/channel/335408-foundation/topic/Request.20for.20legal.20team.20input.20on.20crate.20licensing Link: rust-lang/libm#317 [1]
tgross35
added a commit
to tgross35/compiler-builtins
that referenced
this pull request
Oct 25, 2024
Currently, Cargo.toml specifies Apache-2.0 OR MIT, but LICENSE.txt describes MIT OR NCSA. compiler-builtins is derived from LLVM's compiler-rt. LICENSE.txt correctly reflects the state of compiler-rt prior to relicensing on 2019-01-19, during which time software was available for use under either MIT or the University of Illinois NCSA license. After relicensing, however, compiler-rt is available for use only under Apache-2.0 with the LLVM exception; this is not reflected anywhere in the repository. Update the SPDX license identifier to `Apache-2.0 WITH LLVM-exception AND MIT AND (MIT OR Apache-2.0)`. Each AND portion covers something specific: * Apache-2.0 WITH LLVM-exception: this covers work that is derived from the LLVM repository since after the LLVM relicensing. * MIT: This covers work that is derived from LLVM before the LLVM relicensing (under MIT OR NCSA). * MIT AND Apache-2.0: This ensures that any contributions to this repository, in addition to meeting the above required licenses, is also released for use under the Rust-standard Apache-2.0 with no LLVM exception. See also the parallel license update in rust-lang/libm [1]. Fixes: rust-lang#307 Closes: rust-lang#511 Link: https://rust-lang.zulipchat.com/#narrow/channel/335408-foundation/topic/Request.20for.20legal.20team.20input.20on.20crate.20licensing Link: rust-lang/libm#317 [1]
tgross35
added a commit
to tgross35/compiler-builtins
that referenced
this pull request
Oct 26, 2024
Currently, Cargo.toml specifies Apache-2.0 OR MIT, but LICENSE.txt describes MIT OR NCSA. compiler-builtins is derived from LLVM's compiler-rt. LICENSE.txt correctly reflects the state of compiler-rt prior to relicensing on 2019-01-19, during which time software was available for use under either MIT or the University of Illinois NCSA license. After relicensing, however, compiler-rt is available for use only under Apache-2.0 with the LLVM exception; this is not reflected anywhere in the repository. Update the SPDX license identifier to `Apache-2.0 WITH LLVM-exception AND MIT AND (MIT OR Apache-2.0)`. Each AND portion covers something specific: * Apache-2.0 WITH LLVM-exception: this covers work that is derived from the LLVM repository since after the LLVM relicensing. * MIT: This covers work that is derived from LLVM before the LLVM relicensing (under MIT OR NCSA). * MIT AND Apache-2.0: This ensures that any contributions to this repository, in addition to meeting the above required licenses, is also released for use under the Rust-standard Apache-2.0 with no LLVM exception. See also the parallel license update in rust-lang/libm [1]. Fixes: rust-lang#307 Closes: rust-lang#511 Link: https://rust-lang.zulipchat.com/#narrow/channel/335408-foundation/topic/Request.20for.20legal.20team.20input.20on.20crate.20licensing Link: rust-lang/libm#317 [1]
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This was superseded by #717 |
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The
Cargo.tomlfile specifies the license asMIT/Apache-2.0. This library, however, inherited LLVM'sMIT/NCSAlicensing. LLVM has since switched toMIT OR NCSA OR (Apache-2.0 WITH LLVM-exception), so it's probably possible to re-license this crate toMIT/Apache-2.0, however, the fact is that this hasn't happened yet, since the Readme still says that contributors license their contributions underMIT/NCSA. This implies that all contributors would need to agree to license their code underApache-2.0first.This would make the license of this repo
MIT/NCSA, but the crate also directly bundleslibm, which usesMIT/Apache-2.0. Combining the two, we getMIT OR (Apache-2.0 AND NCSA).This issue is being discussed in #307. This PR implements what I believe to be the correct solution to this problem. Please exercise caution, as I am not a lawyer.