Bug 944478 – LLVM profiles: rename libcxx-using profiles to include libcxx in the name

• Status: CONFIRMED
• Product: Gentoo Linux

[Description Sam James 2024-11-22 15:10:36 UTC]

libcxx is not ABI-compatible with libstdc++ and is a common cause of confusion. We should make sure 'libcxx' or similar is in the name for all such profiles.

[Comment 1 Larry the Git Cow 2025-01-29 21:25:22 UTC]

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

https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=34330ce1861e63a03e38f014ecee3bdb82914d80

commit 34330ce1861e63a03e38f014ecee3bdb82914d80
Author:     Sam James <[e-mail]>
AuthorDate: 2025-01-29 21:24:08 +0000
Commit:     Sam James <[e-mail]>
CommitDate: 2025-01-29 21:24:21 +0000

    llvm-core/clang-common: make USE=default-libcxx description scary
    
    Bug: https://bugs.gentoo.org/944478
    Signed-off-by: Sam James <[e-mail]>

 llvm-core/clang-common/metadata.xml | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

[Comment 2 Larry the Git Cow 2025-02-11 06:24:15 UTC]

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

https://gitweb.gentoo.org/sites/www.git/commit/?id=20f7b720b707e1c057c72c94a224ce53c7559572

commit 20f7b720b707e1c057c72c94a224ce53c7559572
Author:     Sam James <[e-mail]>
AuthorDate: 2025-02-11 06:22:45 +0000
Commit:     Sam James <[e-mail]>
CommitDate: 2025-02-11 06:22:45 +0000

    downloads: add warning for LLVM stages
    
    The "LLVM stages" right now are really "pure LLVM" stages which means
    they're not ABI compatible with the regular ones (which use libstdc++
    rather than libc++/libcxx) and you cannot use GCC as a fallback
    if something fails to build.
    
    This can be reworked if/when we have libstdc++-based LLVM stages (see
    bug #944482 and the related bug #944478).
    
    Bug: https://bugs.gentoo.org/944478
    Bug: https://bugs.gentoo.org/944482
    Closes: https://bugs.gentoo.org/944483
    Signed-off-by: Sam James <[e-mail]>

 _includes/downloads/amd64-advanced.html | 10 ++++++++++
 _includes/downloads/arm64-advanced.html | 10 ++++++++++
 2 files changed, 20 insertions(+)

[Comment 3 Larry the Git Cow 2025-05-23 23:05:08 UTC]

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

https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=4c0767d6265e172d481ffcf635b89439ce27cb8b

commit 4c0767d6265e172d481ffcf635b89439ce27cb8b
Author:     Sam James <[e-mail]>
AuthorDate: 2025-05-23 23:03:54 +0000
Commit:     Sam James <[e-mail]>
CommitDate: 2025-05-23 23:04:47 +0000

    profiles: mark LLVM profiles as exp, not dev
    
    ... so people get a warning when switching to them. This was always
    the intention anyway.
    
    Bug: https://bugs.gentoo.org/944478
    Bug: https://bugs.gentoo.org/944482
    Bug: https://bugs.gentoo.org/944483
    Signed-off-by: Sam James <[e-mail]>

 profiles/profiles.desc | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)