Realm fails to compile when gRPC-Core is also in the project

Goals

I’m seeing compilation errors in object-store files. I’d like to be able to compile my project on iOS.

Expected Results

I expected my project to compile.

Actual Results

I added Firebase to my app via Cocoapods, then got the following errors in Realm:

In file included from /Users/kevboh/my-project/node_modules/realm/react-native/ios/RealmReact/RealmReact.mm:25:
In file included from ../../src/object-store/src/shared_realm.hpp:22:
In file included from ../../src/object-store/src/execution_context_id.hpp:30:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/thread:96:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/chrono:303:
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/ctime:60:9: error: no member named 'clock' in the global namespace; did you mean 'flock'?
using ::clock;

There are many members it cannot find, including clock as above, plus difftime, mktime, and many more.

Steps to Reproduce

1. react-native init MyProject
2. cd MyProject/
3. yarn add realm
4. react-native link realm
5. cd ios/
6. pod init and add pod 'Firebase/Core' and pod 'Firebase/Firestore' to the Podfile
7. react-native run-ios

A sample project that is the result of these steps is here: https://github.com/kevboh/RealmFirebaseBugDemo

Version of Realm and Tooling

• Realm JS SDK Version: 2.1.0
• Node or React Native: 0.51.0
• Client OS & Version: macOS 10.13.2, Xcode 9.2
• Which debugger for React Native: None

[congnguyen91]

Confirm that remove “$(SRCROOT)/…/…/…/…/ios/Pods/Headers/Public/React**” search path on RealmReact working for me

[bdash]

I wonder if the search path could be changed to only add the headers for the ReactNative pod to the search path, rather than headers for all pods. That seems like it’d avoid picking up headers from unrelated pods while also allowing Realm to find ReactNative’s headers when it is integrated via CocoaPods.