diff -up qtwebengine-everywhere-src-5.15.15-20230710/src/3rdparty/chromium/build/config/compiler/BUILD.gn.omv~ qtwebengine-everywhere-src-5.15.15-20230710/src/3rdparty/chromium/build/config/compiler/BUILD.gn
--- qtwebengine-everywhere-src-5.15.15-20230710/src/3rdparty/chromium/build/config/compiler/BUILD.gn.omv~	2023-07-13 06:23:00.808526510 +0200
+++ qtwebengine-everywhere-src-5.15.15-20230710/src/3rdparty/chromium/build/config/compiler/BUILD.gn	2023-07-13 06:23:34.043838797 +0200
@@ -566,7 +566,7 @@ config("compiler") {
       # Override Chromium's default for projects that wish to stay on C++11.
       cflags_cc += [ "-std=${standard_prefix}++11" ]
     } else {
-      cflags_cc += [ "-std=${standard_prefix}++14" ]
+      cflags_cc += [ "-std=${standard_prefix}++17" ]
     }
   } else if (!is_win && !is_nacl) {
     if (target_os == "android") {
@@ -583,7 +583,7 @@ config("compiler") {
     if (cxx11_override) {
       cflags_cc += [ "-std=c++11" ]
     } else {
-      cflags_cc += [ "-std=c++14" ]
+      cflags_cc += [ "-std=c++17" ]
     }
   }