1 files changed, 2 insertions, 0 deletions
diff --git a/eval.c b/eval.c
index 854e390c0..51d461659 100644
--- a/eval.c
+++ b/eval.c
@@ -31,6 +31,8 @@ VALUE rb_eSysStackError;
 
 #if defined(__APPLE__)
 #define environ (*_NSGetEnviron())
+#elif !defined(_WIN32) && !defined(__MACOS__) || defined(_WIN32_WCE)
+extern char **environ;
 #endif
 char **rb_origenviron;