Merge branch 'release-3.19' into FindRuby-restore-VENDORLIB_DIR

1 files changed, 27 insertions, 0 deletions

diff --git a/Source/Checks/cm_cxx_filesystem.cxx b/Source/Checks/cm_cxx_filesystem.cxx
new file mode 100644
index 0000000000..ae8acc56a6
--- /dev/null
+++ b/Source/Checks/cm_cxx_filesystem.cxx
@@ -0,0 +1,27 @@
+
+#include <filesystem>
+
+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 0;
+}