From 98442e019d745f1d61983c071decfa3ebc1ff0cf Mon Sep 17 00:00:00 2001
From: Clifford Wolf <clifford@clifford.at>
Date: Fri, 22 Aug 2014 16:09:13 +0200
Subject: Added emscripten (emcc) support to build system and some build fixes

---
 frontends/ast/ast.cc     |  4 ++++
 frontends/ast/dpicall.cc | 14 +++++++++++++-
 2 files changed, 17 insertions(+), 1 deletion(-)

(limited to 'frontends')

diff --git a/frontends/ast/ast.cc b/frontends/ast/ast.cc
index 2fc8f983..1e43875a 100644
--- a/frontends/ast/ast.cc
+++ b/frontends/ast/ast.cc
@@ -844,7 +844,11 @@ RTLIL::Const AstNode::realAsConst(int width)
 {
 	double v = round(realvalue);
 	RTLIL::Const result;
+#ifdef EMSCRIPTEN
+	if (!isfinite(v)) {
+#else
 	if (!std::isfinite(v)) {
+#endif
 		result.bits = std::vector<RTLIL::State>(width, RTLIL::State::Sx);
 	} else {
 		bool is_negative = v < 0;
diff --git a/frontends/ast/dpicall.cc b/frontends/ast/dpicall.cc
index b79bd59e..2eb104fa 100644
--- a/frontends/ast/dpicall.cc
+++ b/frontends/ast/dpicall.cc
@@ -17,9 +17,12 @@
  *
  */
 
+#include "ast.h"
+
+#ifdef YOSYS_ENABLE_PLUGINS
+
 #include <dlfcn.h>
 #include <ffi.h>
-#include "ast.h"
 
 typedef void (*ffi_fptr) ();
 
@@ -126,3 +129,12 @@ AST::AstNode *AST::dpi_call(const std::string &rtype, const std::string &fname,
 	return newNode;
 }
 
+#else /* YOSYS_ENABLE_PLUGINS */
+
+AST::AstNode *AST::dpi_call(const std::string&, const std::string &fname, const std::vector<std::string>&, const std::vector<AstNode*>&)
+{
+	log_error("Can't call DPI function `%s': this version of yosys is built without plugin support\n", fname.c_str());
+}
+
+#endif /* YOSYS_ENABLE_PLUGINS */
+
-- 
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