From 85cd51872e30f7d672b9f18d554a417d91c6dc71 Mon Sep 17 00:00:00 2001
From: Febbe <fabian_kessler@gmx.de>
Date: Fri, 4 Sep 2020 03:47:24 +0200
Subject: [PATCH] fixup linking problems, when using std::filesystem::relative
 in gcc7/g++7

---
 cmake/find/FindFilesystem.cmake | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/cmake/find/FindFilesystem.cmake b/cmake/find/FindFilesystem.cmake
index 1a1bf1e9..bc4c442a 100644
--- a/cmake/find/FindFilesystem.cmake
+++ b/cmake/find/FindFilesystem.cmake
@@ -187,7 +187,8 @@ if (CXX_FILESYSTEM_HAVE_FS)
 
         int main() {
             auto cwd = @CXX_FILESYSTEM_NAMESPACE@::current_path();
-            return cwd.string().size();
+            auto relative = @CXX_FILESYSTEM_NAMESPACE@::relative(cwd,cwd);
+            return relative.string().size();
         }
     ]] code @ONLY)