<rdar://problem/4859666> WebKit needs availability macros in order to deprecate APIs
Create WebKit availability macros that key off the Mac OS X version being targeted to
determine the WebKit version being targeted. Applications can define
WEBKIT_VERSION_MIN_REQUIRED before including WebKit headers in order to target a specific
version of WebKit.
The availability header is being added to JavaScriptCore rather than WebKit as JavaScriptCore
is the lowest-level portion of the public WebKit API.
Reviewed by Tim Hatcher.
- API/WebKitAvailability.h: Added.
- JavaScriptCore.xcodeproj/project.pbxproj: