Chinmay Garde 67dd9e6047 Allow specifying the Mac SDK path as an environment variable to //flutter/tools/gn (flutter/engine#8643)
As long as the Mac SDK is i386 ready, engine developers should be able to use the latest version of Xcode to build all artifacts. This issue goes away when gen_snapshot migrates to x64.
2019-04-19 10:01:44 -07:00
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