Add attributes to `core.sys.posix.{arpa.inet,sys.uio}`.
Fix to c_long_double for GNU at Iain's request.
parial Issue 9449 - Static arrays of 128bit types segfault on initialization. Incorrect calling of memset128ii
Merge pull request #900 from jmdavis/c_long_double

Fix to c_long_double for GNU at Iain's request.
Merge pull request #901 from WalterBright/fix9449

[critical] partial Issue 9449 - Static arrays of 128bit types segfault on initializa...
change install target to match current release structure
Merge pull request #908 from braddr/install-fix

change install target to match current release structure
Fix install directory on Mac OS X
Merge pull request #878 from denis-sh/add-attributes-to-`core.sys.posix.{arpa.inet,sys.uio}`

Add attributes to `core.sys.posix.{arpa.inet,sys.uio}`.
Merge pull request #910 from tom-tan/fix-install-dir-on-osx

Fix install directory on Mac OS X