From 36cb9575f4e6e58dddef81539b90d74f93ea420f Mon Sep 17 00:00:00 2001
From: Robin Liu <renfeng@google.com>
Date: Mon, 16 Oct 2023 15:48:30 -0400
Subject: [PATCH] Enable read environment variable on Android

This fixs: #430
---
 src/common/platform_utils.hpp | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/src/common/platform_utils.hpp b/src/common/platform_utils.hpp
index 883baef8..2a4c6f52 100644
--- a/src/common/platform_utils.hpp
+++ b/src/common/platform_utils.hpp
@@ -347,15 +347,18 @@ static inline bool PlatformUtilsSetEnv(const char* name, const char* value) {
 }
 
 #elif defined(XR_OS_ANDROID)
+namespace detail {
 
-static inline bool PlatformUtilsGetEnvSet(const char* /* name */) {
-    // Stub func
-    return false;
-}
+static inline char* ImplGetEnv(const char* name) { return getenv(name); }
+}  // namespace detail
+static inline bool PlatformUtilsGetEnvSet(const char* name) { return detail::ImplGetEnv(name) != nullptr; }
 
-static inline std::string PlatformUtilsGetEnv(const char* /* name */) {
-    // Stub func
-    return {};
+static inline std::string PlatformUtilsGetEnv(const char* name) {
+    auto str = detail::ImplGetEnv(name);
+    if (str == nullptr) {
+        return {};
+    }
+    return str;
 }
 
 static inline std::string PlatformUtilsGetSecureEnv(const char* /* name */) {