I am trying to compile code for macOS that depends on the AudioKit
framework.
This can be done using `swiftc`, as long as one passes the flag `-target
x86_64-apple-macosx10.11`.
So, in theory, it should be possible to use `swift build` by passing it
these flags:
-Xswiftc -target -Xswiftc x86_64-apple-macosx10.11
Unfortunately, `swift build` fails with this error:
error: module file's minimum deployment target is OS X v10.11
By passing `--verbose` to `swift build`, I learned that `swift build` is
invoking `swiftc` with two copies of the `-target` flag:
-target x86_64-apple-macosx10.11 -target x86_64-apple-macosx10.10
... and the second one is apparently overriding the first. It seems this
issue was noted on the swift-build-dev list several months ago:
https://lists.swift.org/pipermail/swift-build-dev/
Week-of-Mon-20160919/000637.html
I am running macOS 10.11 with Xcode 8.2.1. Has the bug been fixed in a
development version of swift? If not, what work-around do you suggest?
Perhaps it would be simplest to recompile the AudioKit framework so that it
has a minimum deployment target of macosx10.10? That project's scripts use
xcodebuild to compile the framework, and they do not seem to explicitly
specify a deployment target anywhere, but presumably this can be done by
adding a line to the appropriate .xcconfig file. Does anyone know what
line would need to be added?
- Aaron
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