From d2b0382ec6f67c4f6f2eb422c676db4ea561e490 Mon Sep 17 00:00:00 2001
From: Kefu Chai <kchai@redhat.com>
Date: Mon, 7 Jun 2021 16:39:22 +0800
Subject: [PATCH] cmake: stop detecting <experimental/filesystem>

since we've dropped the support of GCC older than v8.0, there is no need
to detect <experimental/filesystem>

Signed-off-by: Kefu Chai <kchai@redhat.com>
---
 cmake/modules/FindStdFilesystem.cmake   | 1 -
 cmake/modules/FindStdFilesystem_test.cc | 8 +-------
 2 files changed, 1 insertion(+), 8 deletions(-)

diff --git a/cmake/modules/FindStdFilesystem.cmake b/cmake/modules/FindStdFilesystem.cmake
index c66f572459b66..421450c001ea0 100644
--- a/cmake/modules/FindStdFilesystem.cmake
+++ b/cmake/modules/FindStdFilesystem.cmake
@@ -28,7 +28,6 @@ set(_std_filesystem_already_included FALSE)
 foreach(library
     ""
     "stdc++fs"
-    "c++experimental"
     "c++fs")
   try_std_filesystem_library("${library}" StdFilesystem_LIBRARY _std_filesystem_already_included)
   if(_std_filesystem_already_included)
diff --git a/cmake/modules/FindStdFilesystem_test.cc b/cmake/modules/FindStdFilesystem_test.cc
index 8b308fff432f3..413ac31796e22 100644
--- a/cmake/modules/FindStdFilesystem_test.cc
+++ b/cmake/modules/FindStdFilesystem_test.cc
@@ -1,12 +1,6 @@
-#if __has_include(<filesystem>)
 #include <filesystem>
+
 namespace fs = std::filesystem;
-#elif __has_include(<experimental/filesystem>)
-#include <experimental/filesystem>
-namespace fs = std::experimental::filesystem;
-#else
-#error std::filesystem not available!
-#endif
 
 int main() {
     fs::create_directory("sandbox");
-- 
2.39.5