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BREAKING: iOS: Fix case sensitivity build warning in Xcode 8.3 

Summary:
**Breaking Change Notes**

To adapt to the breaking change, app developers that are consuming React Native through CocoaPods must update their Podfile to refer to yoga with a lowercase "y". In other words:

    pod 'Yoga', :path => '../node_modules/react-native/ReactCommon/yoga'

Must be changed to (note the lowercase "y"):

    pod 'yoga', :path => '../node_modules/react-native/ReactCommon/yoga'

**Symptom**

If you consume React Native as a CocoaPod and consume a third-party React Native module not as a CocoaPod, you will receive a `nonportable-include-path` warning in Xcode >= 8.3.

**Details**

Xcode 8.3 introduced -Wnonportable-include-path which triggers if you import a header using different casing than the path to the header on disk. This triggers when consuming React Native as a CocoaPod from a library that isn't a CocoaPod. React Native imports Yoga using paths like this:

    #import <yoga/Yoga.h>

Which means Yoga's headers are expected to be located in a directory called "yoga" with a lowercase "y". However, when React Native is a CocoaPod the Yoga headers for non-CocoaPods end up in the directory "$(BUILT_PRODUCTS_DIR)/Yoga".

To fix this such that Yoga's headers end up in "$(BUILT_PRODUCTS_DIR)/yoga" (note the lowercase "y"), I've changed Yoga's podspec name to have a lowercase "y".

**Test Plan**

Created a test app where React Native is consumed as a CocoaPod. Added the react-native-maps library to the project and configured it to not be consumed through CocoaPods. Verified that the app compiles properly without the `nonportable-include-path` warnings.

Adam Comella
Microsoft Corp.
Closes https://github.com/facebook/react-native/pull/15527

Differential Revision: D5706338

Pulled By: javache

fbshipit-source-id: 090daa2c3ebb1c66bd467e78a1e91791dbb06651
This commit is contained in:
Adam Comella 2017-08-25 04:38:52 -07:00 committed by Facebook Github Bot
parent 99b11ea5d0
commit b050b6906d
3 changed files with 4 additions and 4 deletions
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2
React.podspec
View File

@ -42,7 +42,7 @@ Pod::Spec.new do |s|
s.cocoapods_version = ">= 1.2.0"
s.subspec "Core" do |ss|
ss.dependency "Yoga", "#{package["version"]}.React"
ss.dependency "yoga", "#{package["version"]}.React"
ss.source_files = "React/**/*.{c,h,m,mm,S}"
ss.exclude_files = "**/__tests__/*",
"IntegrationTests/*",

2
ReactCommon/yoga/Yoga.podspec
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@ -10,7 +10,7 @@ else
end
Pod::Spec.new do |spec|
spec.name = 'Yoga'
spec.name = 'yoga'
spec.version = "#{version}.React"
spec.license = { :type => 'BSD' }
spec.homepage = 'https://facebook.github.io/yoga/'

4
docs/IntegrationWithExistingApps.md
View File

@ -223,7 +223,7 @@ target 'NumberTileGame' do
# Add any other subspecs you want to use in your project
]
# Explicitly include Yoga if you are using RN >= 0.42.0
pod 'Yoga', :path => '../node_modules/react-native/ReactCommon/yoga'
pod 'yoga', :path => '../node_modules/react-native/ReactCommon/yoga'
end
```
@ -252,7 +252,7 @@ target 'swift-2048' do
# Add any other subspecs you want to use in your project
]
# Explicitly include Yoga if you are using RN >= 0.42.0
pod "Yoga", :path => "../node_modules/react-native/ReactCommon/yoga"
pod "yoga", :path => "../node_modules/react-native/ReactCommon/yoga"
end
```