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-rw-r--r--frontends/rpc/rpc_frontend.cc2
1 files changed, 2 insertions, 0 deletions
diff --git a/frontends/rpc/rpc_frontend.cc b/frontends/rpc/rpc_frontend.cc
index b4b2fa3a2..83e1353b0 100644
--- 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)