1 files changed, 11 insertions, 0 deletions
diff --git a/src/core/qtwebengine_sources.gni b/src/core/qtwebengine_sources.gni
index 81a48cab4..8f3c1ae20 100644
--- a/src/core/qtwebengine_sources.gni
+++ b/src/core/qtwebengine_sources.gni
@@ -39,8 +39,19 @@ source_set("qtwebengine_spellcheck_sources") {
   }
 }
 
+config("cpp17_config") {
+  # static initialized constexpr expressions must be compiled always as c++14 or always as c++17
+  # and our qtwebengine core sources use them as c++17
+  if (is_win) {
+    cflags_cc = [ "/std:c++17" ]
+  } else {
+    cflags_cc = [ "-std=c++17" ]
+  }
+}
+
 source_set("qtwebengine_sources") {
   configs += [
+    ":cpp17_config",
     "//skia:skia_config",
     "//third_party/boringssl:external_config",
   ]