Define environ, fixes #1424

diff --git a/frontends/rpc/rpc_frontend.cc b/frontends/rpc/rpc_frontend.cc
index b4b2fa3a215625fbe0a7c4a5cecb7b302353dfb5..83e1353b059321bcc9d3b762085589c6fbca751d 100644 (file)
--- a/frontends/rpc/rpc_frontend.cc
+++ b/frontends/rpc/rpc_frontend.cc
@@ -34,6 +34,8 @@
 #include "libs/sha1/sha1.h"
 #include "kernel/yosys.h"
 
+extern char **environ;
+
 YOSYS_NAMESPACE_BEGIN
 
 #if defined(_WIN32)