From a7a53921e44e33a442d9367c906fa19e9e47ab96 Mon Sep 17 00:00:00 2001
From: Julian Smith <jules@op59.net>
Date: Wed, 30 Dec 2020 18:08:00 +0000
Subject: [PATCH] simgear/misc/sg_path.*: added SGPath::makeLink(), for making
 softlinks.

Note that on Windows there is no implementation yet and it always returns
false.
---
 simgear/misc/sg_path.cxx | 12 ++++++++++++
 simgear/misc/sg_path.hxx |  5 +++++
 2 files changed, 17 insertions(+)

diff --git a/simgear/misc/sg_path.cxx b/simgear/misc/sg_path.cxx
index 9e74bafc..eead1790 100644
--- a/simgear/misc/sg_path.cxx
+++ b/simgear/misc/sg_path.cxx
@@ -1108,3 +1108,15 @@ bool SGPath::touch()
     _cached = false;
     return true;
 }
+
+bool SGPath::makeLink(const std::string& destination)
+{
+    #ifdef SG_WINDOWS
+    return false;
+    #else
+    if (symlink(destination.c_str(), c_str())) {
+        return false;
+    }
+    return true;
+    #endif
+}
diff --git a/simgear/misc/sg_path.hxx b/simgear/misc/sg_path.hxx
index 205759a1..2ebfa5b5 100644
--- a/simgear/misc/sg_path.hxx
+++ b/simgear/misc/sg_path.hxx
@@ -289,6 +289,11 @@ public:
      */
     bool touch();
     
+    /**
+     * Create a link with this path that points to <destination>.
+     */
+    bool makeLink(const std::string& destination);
+    
     enum StandardLocation
     {
       HOME,