1 files changed, 18 insertions, 1 deletions
diff --git a/Source/Checks/cm_cxx_filesystem.cxx b/Source/Checks/cm_cxx_filesystem.cxx
index e508d1c..ae8acc5 100644
--- a/Source/Checks/cm_cxx_filesystem.cxx
+++ b/Source/Checks/cm_cxx_filesystem.cxx
@@ -3,8 +3,25 @@
 
 int main()
 {
+  std::filesystem::path p0(L"/a/b/c");
+
   std::filesystem::path p1("/a/b/c");
   std::filesystem::path p2("/a/b/c");
+  if (p1 != p2) {
+    return 1;
+  }
+
+#if defined(_WIN32)
+  std::filesystem::path p3("//host/a/b/../c");
+  if (p3.lexically_normal().generic_string() != "//host/a/c") {
+    return 1;
+  }
+
+  std::filesystem::path p4("c://a/.///b/../");
+  if (p4.lexically_normal().generic_string() != "c:/a/") {
+    return 1;
+  }
+#endif
 
-  return p1 == p2 ? 0 : 1;
+  return 0;
 }