brew/Library/Homebrew/os/mac, branch 1.4.1

Xcode 9.2

2017-12-08T14:59:15+00:00

Update all the necessary versions but also cleanup some related
indentation and point the `Xcode.md` document to the code rather than
duplicating it there (which means it sometimes ends up outdated).

Implement linkage for Linux

2017-12-04T00:22:51+00:00

x11_requirement: remove custom minimum version.

2017-12-03T13:33:16+00:00

This isn't desired or needed. Ensure older code still works, though.

Add CVSRequirement and SubversionRequirement

2017-11-25T17:45:08+00:00

Use these two requirements in DependencyCollector.
Remove the unused function MacOS::Xcode.provides_cvs?

diagnostic: check if Xcode needs CLT installed.

2017-11-17T21:35:49+00:00

Require the CLT on all but the latest version of macOS to avoid the
continuous workarounds for SDK weirdness.

Merge pull request #3377 from maxim-belkin/extend-pathname

2017-11-10T17:49:27+00:00

pathname: new methods and improvements

pathname: improvements, cleanups, and new methods

2017-11-07T20:18:25+00:00

- atomic_write: close file before renaming to prevent error:
  'Device or resource busy'
- ensure_writable: preserve executable bit
- new elf? and dynamic? methods

Merge pull request #3409 from DomT4/xcode

2017-11-07T07:22:50+00:00

Xcode 9.1 Updates.

xcode: check Xcode installed before using version.

2017-11-05T20:22:01+00:00

This avoids infinite recursion described in:
https://github.com/Homebrew/brew/pull/3422#issuecomment-342001451

mac/xquartz: compare with existing Version class.

2017-11-05T15:39:43+00:00