Revert "mjit_worker.c: try passing -nostdlib to AIX"
This reverts commit b32fb23083912c37a2601c66531ed786a7c9f3e5.
This didn't work on AIX.
mjit_worker.c: do not use GCC_NOSTDLIB_FLAGS for OpenBSD
OpenBSD's GCC compiler has local extensions that break when
`-nostartfiles -nodefaultlibs -nostdlib` is used.
From: Jeremy Evans <merch-redmine@jeremyevans.net>
[Bug #15548]
merge revision(s) 66823,66869: [Backport #15548]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_6@66924 b2dd03c8-39d4-4d8f-98ff-823fe69b080e