Fixes the source path of frameworks

[olliwang]

This commit fixes an issue where Pods-TARGET_NAME-frameworks.sh could give a source: unbound variable error as follow.

Showing All Messages
PhaseScriptExecution [CP]\ Embed\ Pods\ Frameworks /Users/USERNAME/Developer/PROJECT_PATH/build/TARGET_NAME.build/Debug-iphoneos/Script-6D601675FA2FB56714C154A0.sh (in target 'TARGET_NAME' from project 'TARGET_NAME')
    cd /Users/USERNAME/Developer/fogofworld3/src/ios
    /bin/sh -c /Users/USERNAME/Developer/PROJECT_PATH/build/TARGET_NAME.build/Debug-iphoneos/Script-6D601675FA2FB56714C154A0.sh

mkdir -p /Users/USERNAME/Developer/PROJECT_PATH/Debug-iphoneos/TARGET_NAME.app/Frameworks
/Users/USERNAME/Developer/fogofworld3/src/ios/Pods/Target Support Files/Pods-TARGET_NAME/Pods-TARGET_NAME-frameworks.sh: line 42: source: unbound variable
Command PhaseScriptExecution failed with a nonzero exit code

This error occurs in Xcode 14.3 (14E222a) on a MacBook Pro M2 Max.

PS. #11828 should also be accepted to make archiving work.

[CocoaPodsBarista]

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* Fixes the source path of frameworks  
  [olliwang](https://github.com/olliwang)
  [#issue_number](https://github.com/CocoaPods/CocoaPods/issues/issue_number)

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[usmanabid94]

For the people facing error in Xcode after update to 14.3.

In your xcode, Go to PODS folder :
Target Support Files => Pods-{Your Project} => Pods-{Your Project}-frameworks

Change

source="$(readlink "${source}")"
this :

source="$(readlink -f "${source}")"