[webkit-changes] [WebKit/WebKit] e76ab1: Incremental build fix for "[Xcode] Add support for...

[Elliott Williams]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: e76ab16dac6e54b1113149a3fe941dbaf72a6546
      https://github.com/WebKit/WebKit/commit/e76ab16dac6e54b1113149a3fe941dbaf72a6546
  Author: Elliott Williams <emw at apple.com>
  Date:   2024-01-03 (Wed, 03 Jan 2024)

  Changed paths:
    M Makefile.shared

  Log Message:
  -----------
  Incremental build fix for "[Xcode] Add support for setting CC/CPLUSPLUS variables when using make"
https://bugs.webkit.org/show_bug.cgi?id=267020
rdar://120398180

Unreviewed.

By default, Make sets CC=cc, causing us to always pass a "CC" build
setting to xcodebuild and invalidating incremental builds between Make
and Xcode. Change to only overriding the setting when something other
than "cc" is set.

* Makefile.shared:

Canonical link: https://commits.webkit.org/272640@main