From 3dad306e1d7159b21dbd2aeadae016b634d26692 Mon Sep 17 00:00:00 2001
From: Tristan Gingold <tgingold@free.fr>
Date: Wed, 14 Aug 2019 10:00:35 +0200
Subject: ghdl: initialize for synthesis.

---
 ghdl/ghdl.cc | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

(limited to 'ghdl/ghdl.cc')

diff --git a/ghdl/ghdl.cc b/ghdl/ghdl.cc
index c5420e1..6e8de96 100644
--- a/ghdl/ghdl.cc
+++ b/ghdl/ghdl.cc
@@ -533,10 +533,15 @@ struct GhdlPass : public Pass {
 #ifdef YOSYS_ENABLE_GHDL
 	virtual void execute(std::vector<std::string> args, RTLIL::Design *design)
 	{
+		static bool initialized;
 		log_header(design, "Executing GHDL.\n");
 
-		//  Initialize the library. There is a counter in that function that protects against multiple calls.
-		libghdl_init ();
+		//  Initialize the library.
+		if (!initialized) {
+			initialized = 1;
+			libghdl_init ();
+			ghdlsynth__init_for_ghdl_synth();
+		}
 
 		if (args.size() == 2 && args[1] == "--disp-config") {
 			ghdlcomp__disp_config();
-- 
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