From e2c9c3fffcc61a0c102ccf6a7924e2de709092ad Mon Sep 17 00:00:00 2001
From: Mikko Rasa <tdb@tdb.fi>
Date: Tue, 27 Dec 2022 22:41:22 +0200
Subject: [PATCH] Add gcc's private library directory to ClangLinker's system
 path

It's needed for libstdc++.
---
 source/clanglinker.cpp | 17 +++++++++++++++++
 source/clanglinker.h   |  3 +++
 2 files changed, 20 insertions(+)

diff --git a/source/clanglinker.cpp b/source/clanglinker.cpp
index 9d39979..5089028 100644
--- a/source/clanglinker.cpp
+++ b/source/clanglinker.cpp
@@ -1,7 +1,24 @@
+#include <msp/fs/stat.h>
+#include "builder.h"
 #include "clanglinker.h"
 
+using namespace Msp;
+
 ClangLinker::ClangLinker(Builder &b, const Architecture &a):
 	CustomizedTool(b, "LINK", a)
 {
 	set_command("clang", true);
 }
+
+void ClangLinker::do_prepare(ToolData &tool) const
+{
+	parent.prepare();
+	CustomizedTool::do_prepare(tool);
+	for(const FS::Path &p: parent.get_system_path())
+		if(FS::exists(p/"libstdc++.so"))
+		{
+			builder.get_logger().log("tools", "Got %s gcc system path: %s", static_cast<const Tool &>(tool).get_tag(), p);
+			tool.system_path.push_back(p);
+			break;
+		}
+}
diff --git a/source/clanglinker.h b/source/clanglinker.h
index fd7e264..de65e64 100644
--- a/source/clanglinker.h
+++ b/source/clanglinker.h
@@ -7,6 +7,9 @@ class ClangLinker: public CustomizedTool
 {
 public:
 	ClangLinker(Builder &, const Architecture &);
+
+protected:
+	void do_prepare(ToolData &) const override;
 };
 
 #endif
-- 
2.45.2