From b544371d737b5373726013fcc8c9e92609d10047 Mon Sep 17 00:00:00 2001
From: Anandraj Govindan <anandrag@microsoft.com>
Date: Thu, 27 Dec 2018 07:21:10 -0800
Subject: [PATCH] Making JSI_EXPORT macro definition conditional (#22561)

Summary:
This change enables defining the macro at a more global and central location. And thereby allowing us to building this file using MSVC.
Pull Request resolved: https://github.com/facebook/react-native/pull/22561

Reviewed By: fkgozali

Differential Revision: D13529762

Pulled By: RSNara

fbshipit-source-id: c78abb26f47aba25d50305c5bc0b23b6568f1243
---
 ReactCommon/jsi/jsi.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/ReactCommon/jsi/jsi.h b/ReactCommon/jsi/jsi.h
index b1b26ff6a3462d..808e0f57967c94 100644
--- a/ReactCommon/jsi/jsi.h
+++ b/ReactCommon/jsi/jsi.h
@@ -10,7 +10,9 @@
 #include <string>
 #include <vector>
 
+#ifndef JSI_EXPORT
 #define JSI_EXPORT __attribute__((visibility("default")))
+#endif
 
 class FBJSRuntime;
 namespace facebook {