[C++] musl does not define _SC_LEVEL1_DCACHE_SIZE etc

[asfimport]

Arrow 9.0.0 has new code which includes _SC_LEVEL1_DCACHE_SIZE 

introduced in commit cde5a08

 

there is a fallback function

arrow/cpp/src/arrow/util/cpu_info.cc

Line 326 in ea6875f

std::ifstream cacheinfo(kCacheSizeEntries[level].sysfs_path, std::ios::in);

 

but that uses the structure with the defines in as well.

Reporter: Duncan Bellamy
Assignee: Yibo Cai / @cyb70289

PRs and other links:

• GitHub Pull Request #13819

_{Note: This issue was originally created as ARROW-17341. Please see the migration documentation for further details.}

[asfimport]

Kouhei Sutou / @kou:
@cyb70289 Could you take a look at this?

[asfimport]

Yibo Cai / @cyb70289:
Sure.

[asfimport]

Yibo Cai / @cyb70289:
Thanks for the report. I think we didn't test with musl libc. But this specific issue should be easy to fix.

[asfimport]

Antoine Pitrou / @pitrou:
Issue resolved by pull request 13819
#13819