Define ip_mreqn on all Linux platforms

[tamird]

Updates #1558.

[rust-highfive]

r? @Amanieu

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[Amanieu]

@bors r+

[bors]

📌 Commit e1eeade has been approved by Amanieu

[bors]

⌛ Testing commit e1eeade with merge b7af874...

[bors]

💔 Test failed - checks-actions

[tamird]

Where can I see the failure details?

[Amanieu]

The failure details are here: https://github.com/rust-lang/libc/runs/4908786386?check_suite_focus=true

It seems like passing ip_mreqn by value is somehow corrupting the value on sparc64.

@JohnTitor Do you have any idea what could be causing this? I'm stumped.

[tamird]

@Amanieu I've suppressed this test on sparc64 for now; can I get another try run?

[Amanieu]

@bors r+

[bors]

📌 Commit da84eef has been approved by Amanieu

[bors]

⌛ Testing commit da84eef with merge eadfdf5...

[bors]

💔 Test failed - checks-actions

[tamird]

This failure looks unrelated (and strange):

    Finished test [unoptimized + debuginfo] target(s) in 1m 47s
     Running test/cmsg.rs (target/arm-unknown-linux-musleabihf/debug/deps/cmsg-0f644353fa7d873a)

running 5 tests
test t::test_cmsg_data ... ok
error: test failed, to rerun pass '--test cmsg'

Caused by:
  process didn't exit successfully: `qemu-arm -L /musl-arm /checkout/target/arm-unknown-linux-musleabihf/debug/deps/cmsg-0f644353fa7d873a` (signal: 11, SIGSEGV: invalid memory reference)
Error: Process completed with exit code 101.

https://github.com/rust-lang/libc/runs/4915659168?check_suite_focus=true

Can we retry?

[Amanieu]

@bors retry

[bors]

⌛ Testing commit da84eef with merge 4d03473...

[bors]

☀️ Test successful - checks-actions, checks-cirrus-freebsd-11, checks-cirrus-freebsd-12, checks-cirrus-freebsd-13
Approved by: Amanieu
Pushing 4d03473 to master...