Created attachment 565574 [details, diff] Patch to set experimental-targets to empty string I don't know when this started but at least as of 1.32.0, the experimental RISCV and WebAssembly targets are unconditionally enabled when building the bundled LLVM. You can see this from the arguments it passes to CMake. This ebuild patch prevents it.
I'll merge your patch but this change was introduced via https://github.com/rust-lang/rust/commit/48996f9e759912140ccc98072e9e55fa6480a9d7 and https://github.com/rust-lang/rust/commit/7a5e8bdc020e2c169cd65b01e5befb66dc5a41c8
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=c2ecf54bd693ad68ed5ec85ea4d07e5ac2e65f4a commit c2ecf54bd693ad68ed5ec85ea4d07e5ac2e65f4a Author: Thomas Deutschmann <whissi@gentoo.org> AuthorDate: 2019-02-19 00:52:19 +0000 Commit: Thomas Deutschmann <whissi@gentoo.org> CommitDate: 2019-02-19 01:23:28 +0000 dev-lang/rust: don't build experimental LLVM targets Reported-by: James Le Cuirot <chewi@gentoo.org> Closes: https://bugs.gentoo.org/678186 Package-Manager: Portage-2.3.60, Repoman-2.3.12 Signed-off-by: Thomas Deutschmann <whissi@gentoo.org> dev-lang/rust/rust-1.30.1-r1.ebuild | 1 + dev-lang/rust/rust-1.31.1.ebuild | 1 + dev-lang/rust/rust-1.32.0.ebuild | 1 + 3 files changed, 3 insertions(+)
Did anyone test these changes with the wasm USE flag enabled?
(In reply to Dirkjan Ochtman from comment #3) > Did anyone test these changes with the wasm USE flag enabled? Unfortunately it fails: error: Could not create LLVM TargetMachine for triple: wasm32-unknown-unknown: No available targets are compatible with triple "wasm32-unknown-unknown" Sorry, I didn't know that wasm was WebAssembly. Easily fixed with usex though. Why is it not an LLVM_TARGETS flag like the others?
The bug has been referenced in the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=74ecef85908202a33018ed9decdcf57bdd4d25d7 commit 74ecef85908202a33018ed9decdcf57bdd4d25d7 Author: James Le Cuirot <chewi@gentoo.org> AuthorDate: 2019-02-24 23:19:52 +0000 Commit: James Le Cuirot <chewi@gentoo.org> CommitDate: 2019-02-24 23:19:52 +0000 dev-lang/rust: Fix wasm USE flag by restoring WebAssembly target Bug: https://bugs.gentoo.org/678186 Package-Manager: Portage-2.3.62, Repoman-2.3.12 Signed-off-by: James Le Cuirot <chewi@gentoo.org> dev-lang/rust/rust-1.30.1-r1.ebuild | 2 +- dev-lang/rust/rust-1.31.1.ebuild | 2 +- dev-lang/rust/rust-1.32.0.ebuild | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-)
The bug has been referenced in the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=dad9246cf2dd4fc349139ceb963efe11bce75e63 commit dad9246cf2dd4fc349139ceb963efe11bce75e63 Author: Georgy Yakovlev <gyakovlev@gentoo.org> AuthorDate: 2019-04-12 05:00:42 +0000 Commit: Georgy Yakovlev <gyakovlev@gentoo.org> CommitDate: 2019-04-12 05:08:02 +0000 dev-lang/rust: fix cblas headers again, don't build RISCV Bug: https://bugs.gentoo.org/676278 Bug: https://bugs.gentoo.org/678186 Bug: https://bugs.gentoo.org/683128 Package-Manager: Portage-2.3.62, Repoman-2.3.12 Signed-off-by: Georgy Yakovlev <gyakovlev@gentoo.org> ...Add-additional-headers-only-if-they-exist.patch | 41 ++++++++++++++++++++++ .../{rust-1.34.0.ebuild => rust-1.34.0-r1.ebuild} | 3 ++ 2 files changed, 44 insertions(+)
