From 6e8727844309aa55f84e5c08ababee2726a46650 Mon Sep 17 00:00:00 2001
From: George Stagg <george.stagg@posit.co>
Date: Tue, 23 Apr 2024 15:05:18 +0100
Subject: [PATCH] Set WEBR and WEBR_VERSION environment variables

---
 NEWS.md               | 2 ++
 src/webR/webr-main.ts | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/NEWS.md b/NEWS.md
index 5108b531..8f54a0d6 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -4,6 +4,8 @@
 
 * A `webR.version` property has been added, containing the current version and build information (#409).
 
+* WebR now sets the environment variable `WEBR` equal to `"1"` and `WEBR_VERSION` equal to the webR version string in the WebAssembly environment (#414).
+
 # webR 0.3.2
 
 ## New features
diff --git a/src/webR/webr-main.ts b/src/webR/webr-main.ts
index 6058b5e9..bfb88b75 100644
--- a/src/webR/webr-main.ts
+++ b/src/webR/webr-main.ts
@@ -174,6 +174,8 @@ const defaultEnv = {
   FONTCONFIG_PATH: '/etc/fonts',
   R_HOME: '/usr/lib/R',
   R_ENABLE_JIT: '0',
+  WEBR: '1',
+  WEBR_VERSION: WEBR_VERSION,
 };
 
 const defaultOptions = {