[COMPILE] WARN - Configuration for architecture xxx failed.

[xxxg0001]

I run ./build_curl and got some error

[COMPILE] WARN - Configuration for architecture 'i386-apple-darwin' failed.
[COMPILE] WARN - Configuration for architecture 'armv7-apple-darwin' failed.
[COMPILE] WARN - Configuration for architecture 'armv7s-apple-darwin' failed.
[COMPILE] WARN - Configuration for architecture 'arm64' failed.

why?, how to fix it?

[kentran]

It maybe a bit late but the reason for this problem is that the sdk version for ios build is configured in curl_builder.rb to be 8.1. If you are running a different version of the sdk, the library won't compile. Check your current SDK in /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/ folder and change the version will work