[MacPorts] #62463: ispc-clang :build fails on BigSur: error: invalid application of 'sizeof' to an incomplete type 'struct stat64'

[MacPorts]

#62463: ispc-clang :build fails on BigSur: error: invalid application of 'sizeof'
to an incomplete type 'struct stat64'
-----------------------+--------------------
 Reporter:  sampotter  |      Owner:  (none)
     Type:  defect     |     Status:  new
 Priority:  Normal     |  Milestone:
Component:  ports      |    Version:
 Keywords:             |       Port:
-----------------------+--------------------
 (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.

-- 
Ticket URL: <https://trac.macports.org/ticket/62463>
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