Bug 933382 – dev-lang/rust-1.78.0 - One or more CMake variables were not used by the project:

• Product: Gentoo Linux
• Status: RESOLVED FIXED

[Description Toralf Förster 2024-06-01 21:30:27 UTC]

 * QA Notice: One or more CMake variables were not used by the project:
 *   CMAKE_ASM_COMPILER
strip: x86_64-pc-linux-gnu-strip --strip-unneeded -N __gentoo_check_ldflags__ -R .comment -R .GCC.command.line -R .note.gnu.gold-version
   /usr/lib/rust/1.78.0/bin/rustc
   /usr/lib/rust/1.78.0/bin/rustc-1.78.0
   /usr/lib/rust/1.78.0/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-213aa287dff40088.so
   /usr/lib/rust/1.78.0/lib/rustlib/i686-unknown-linux-gnu/lib/libstd-637b19b5b479f581.so
   /usr/lib/rust/1.78.0/bin/rustdoc

  -------------------------------------------------------------------

  This is an unstable amd64 chroot image at a tinderbox (==build bot)
  name: 23.0_hardened_systemd_abi32+64-20240530-142511

  The build log matches a QA pattern or sth. requested by a dev.
  The attached etc.portage.tar.xz has all details.
  -------------------------------------------------------------------

[Comment 1 Toralf Förster 2024-06-01 21:30:28 UTC]

Created attachment 894888 [details]
emerge-info.txt

[Comment 2 Toralf Förster 2024-06-01 21:30:32 UTC]

Created attachment 894889 [details]
dev-lang:rust-1.78.0:20240601-180630.log.xz

[Comment 3 Toralf Förster 2024-06-01 21:30:33 UTC]

Created attachment 894890 [details]
emerge-history.txt

[Comment 4 Toralf Förster 2024-06-01 21:30:34 UTC]

Created attachment 894891 [details]
etc.clang.tar.xz

[Comment 5 Toralf Förster 2024-06-01 21:30:35 UTC]

Created attachment 894892 [details]
etc.portage.tar.xz

[Comment 6 Toralf Förster 2024-06-01 21:30:36 UTC]

Created attachment 894893 [details]
qlist-info.txt

[Comment 7 matoro 2024-06-06 22:58:32 UTC]

Hmm, this seems to be enforced in bundled LLVM since 1.47.0:  https://github.com/rust-lang/rust/commit/8c40426051a667673cdac9975f84cb6acd4e245f

Should we add a patch to revert this commit?

[Comment 8 Larry the Git Cow 2024-07-04 01:15:22 UTC]

The bug has been closed via the following commit(s):

https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=7542c63f99687fafeff4fb5c972ef93a84f77db2

commit 7542c63f99687fafeff4fb5c972ef93a84f77db2
Author:     Matoro Mahri <[e-mail]>
AuthorDate: 2024-07-03 02:29:27 +0000
Commit:     Sam James <[e-mail]>
CommitDate: 2024-07-04 01:14:45 +0000

    dev-lang/rust: add patch to disable setting CMAKE_ASM_COMPILER
    
    This is apparently not (or no longer) consumed by the bundled LLVM,
    which makes our QA complain.
    
    See: https://github.com/rust-lang/rust/commit/8c40426051a667673cdac9975f84cb6acd4e245f
    Closes: https://bugs.gentoo.org/933382
    Signed-off-by: Matoro Mahri <[e-mail]>
    Closes: https://github.com/gentoo/gentoo/pull/37405
    Signed-off-by: Sam James <[e-mail]>

 dev-lang/rust/files/1.79.0-revert-8c40426.patch | 18 ++++++++++++++++++
 dev-lang/rust/rust-1.79.0.ebuild                |  1 +
 2 files changed, 19 insertions(+)

[Comment 9 Larry the Git Cow 2024-11-22 23:48:47 UTC]

The bug has been referenced in the following commit(s):

https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=c20c4b60f9eaec9d0a951a00088da4d4d95b7652

commit c20c4b60f9eaec9d0a951a00088da4d4d95b7652
Author:     James Le Cuirot <[e-mail]>
AuthorDate: 2024-11-22 23:48:02 +0000
Commit:     James Le Cuirot <[e-mail]>
CommitDate: 2024-11-22 23:48:02 +0000

    dev-lang/rust: Drop patch that stops setting CMAKE_ASM_COMPILER for bundled LLVM
    
    It is necessary to set CMAKE_ASM_COMPILER when cross-compiling, otherwise the
    ASM compiler gets detected with the wrong tuple. The patch was added because the
    build previously complained that CMAKE_ASM_COMPILER was unused, but that no
    longer seems to be the case, at least since 1.82. This was tested with a cross
    and a native build.
    
    Bug: https://bugs.gentoo.org/933382
    Signed-off-by: James Le Cuirot <[e-mail]>

 dev-lang/rust/rust-1.82.0-r100.ebuild | 1 -
 1 file changed, 1 deletion(-)