ispc-clang :build fails on BigSur: error: invalid application of 'sizeof' to an incomplete type 'struct stat64'

[sampotter (sfp)]

(See also #61972, #62261, and probably others...)

Trying to build ispc-clang on macOS 11.2.3 for some errors which seem to be identical to other recent problems with building other versions of clang. See the attached log file, and e.g.:

:info:build /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_ispc/ispc-clang/work/llvm-project-10.0.1/compiler-rt/lib/sanitizer_common/
sanitizer_platform_limits_posix.cpp:174:31: error: invalid application of 'sizeof' to an incomplete type 'struct stat64'
:info:build   unsigned struct_stat64_sz = sizeof(struct stat64);
:info:build                               ^     ~~~~~~~~~~~~~~~
:info:build /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_ispc/ispc-clang/work/llvm-project-10.0.1/compiler-rt/lib/sanitizer_common/
sanitizer_platform_limits_posix.cpp:174:45: note: forward declaration of '__sanitizer::stat64'
:info:build   unsigned struct_stat64_sz = sizeof(struct stat64);
:info:build                                             ^
:info:build /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_ispc/ispc-clang/work/llvm-project-10.0.1/compiler-rt/lib/sanitizer_common/
sanitizer_platform_limits_posix.cpp:200:33: error: invalid application of 'sizeof' to an incomplete type 'struct statfs64'
:info:build   unsigned struct_statfs64_sz = sizeof(struct statfs64);
:info:build                                 ^     ~~~~~~~~~~~~~~~~~
:info:build /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_ispc/ispc-clang/work/llvm-project-10.0.1/compiler-rt/lib/sanitizer_common/
sanitizer_platform_limits_posix.cpp:200:47: note: forward declaration of '__sanitizer::statfs64'
:info:build   unsigned struct_statfs64_sz = sizeof(struct statfs64);
:info:build                                               ^
:info:build 2 errors generated.

Presumably the fixes for those other issues can be applied here without any issue.

[sampotter (sfp)]

Log file

[kencu (Ken)]

I believe some or all of this patch might be useful <​https://github.com/macports/macports-ports/blob/master/lang/llvm-10/files/2003-patch-compiler-rt-support-arm64.diff>

[sampotter (sfp)]

Thanks for the quick reply.

Judging by the file name I’m assuming this is a patch that adds ARM support.

I should clarify that I’m on a 2015 MacBook Air with a Core i7 chip.

[kencu (Ken)]

I believe you might look past the name I gave the patchfile and I think you'll find it likely adds more than just that (look at the parts further down) but I haven't actually tried it as that is someone else's port.

Anyway, just a suggestion.

[gallafent]

Just to note, this breakage prevents blender from being installed on macOS 11 at the moment, so I'm looking forward to the fix!

[gallafent]

Someone seems to have fixed it! (Thanks!) — time to close this ticket?

[sampotter (sfp)]

Works for me, too!