diff --git a/.github/workflows/miqt.yml b/.github/workflows/miqt.yml
index 10cca52f4..9c14434b9 100644
--- a/.github/workflows/miqt.yml
+++ b/.github/workflows/miqt.yml
@@ -26,6 +26,9 @@ jobs:
     - name: Run unit tests for cmd tasks
       run: make test-cmd
 
+    - name: Assert cflags files are up-to-date
+      run: cmd/lint-cflags-files.sh
+    
     - name: Rebuild binding source
       run: make genbindings
     
diff --git a/cmd/genbindings/config-libraries.go b/cmd/genbindings/config-libraries.go
index e4b6300c9..5d385978a 100644
--- a/cmd/genbindings/config-libraries.go
+++ b/cmd/genbindings/config-libraries.go
@@ -99,6 +99,7 @@ func ProcessLibraries(clangBin, outDir, extraLibsDir string) {
 	)
 
 	// Qt 5 Network (2/3)
+	// n.b. This is here for parity with Qt 6, however, it generates zero files
 
 	generate(
 		"qt/network/sctp",
diff --git a/cmd/lint-cflags-files.sh b/cmd/lint-cflags-files.sh
new file mode 100755
index 000000000..11c7460d9
--- /dev/null
+++ b/cmd/lint-cflags-files.sh
@@ -0,0 +1,43 @@
+#!/bin/bash
+#
+# Check that each Qt cgo package has the expected #cgo directives for that
+# version of Qt
+
+set -euo pipefail
+
+require_cflags() {
+	local dirname="$1"
+	local check="$2"
+	local status=0
+	
+	for d in $(find "${dirname}" -type d | sort); do
+	
+		# allowed exceptions:
+		if [[ $d =~ mainthread ]] ; then
+			continue
+		fi
+	
+		if [[ ! -f $d/cflags.go ]] ; then
+			echo "WARNING: Package $d missing cflags.go file" >&2
+			status=1
+		fi
+		
+		if ! grep -Fq "$check" "$d/cflags.go" ; then
+			echo "WARNING: Package $d missing expected '$check'" >&2
+			status=1
+		fi
+	done
+	
+	return $status
+}
+
+main() {
+	require_cflags qt '#cgo CXXFLAGS: -std=c++11'
+	require_cflags qt '#cgo CFLAGS: -std=gnu11'
+	require_cflags qt '#cgo pkg-config:'
+	
+	require_cflags qt6 '#cgo CXXFLAGS: -std=c++17'
+	require_cflags qt6 '#cgo pkg-config:'
+}
+
+main "$@"
diff --git a/qt/designer/cflags.go b/qt/designer/cflags.go
index 93a5cc61d..6b6c01dbd 100644
--- a/qt/designer/cflags.go
+++ b/qt/designer/cflags.go
@@ -1,6 +1,8 @@
 package designer
 
 /*
+#cgo CXXFLAGS: -std=c++11
+#cgo CFLAGS: -std=gnu11
 #cgo pkg-config: Qt5UiPlugin Qt5Designer
 */
 import "C"
diff --git a/qt/mainthread/mainthread.go b/qt/mainthread/mainthread.go
index f44332b8c..6be2fdeaa 100644
--- a/qt/mainthread/mainthread.go
+++ b/qt/mainthread/mainthread.go
@@ -1,12 +1,13 @@
 package mainthread
 
 import (
-	"sync"
 	"runtime/cgo"
+	"sync"
 )
 
 /*
 #cgo CXXFLAGS: -std=c++11
+#cgo CFLAGS: -std=gnu11
 #cgo pkg-config: Qt5Core
 
 #include "mainthread.h"
diff --git a/qt/opengl/cflags.go b/qt/opengl/cflags.go
index 66c2aa09f..50e19d484 100644
--- a/qt/opengl/cflags.go
+++ b/qt/opengl/cflags.go
@@ -1,6 +1,8 @@
 package opengl
 
 /*
+#cgo CXXFLAGS: -std=c++11
+#cgo CFLAGS: -std=gnu11
 #cgo pkg-config: Qt5OpenGL
 */
 import "C"
diff --git a/qt/pdf/cflags.go b/qt/pdf/cflags.go
index 7b7510b11..0afce3710 100644
--- a/qt/pdf/cflags.go
+++ b/qt/pdf/cflags.go
@@ -1,7 +1,8 @@
 package pdf
 
 /*
+#cgo CXXFLAGS: -std=c++11
+#cgo CFLAGS: -std=gnu11
 #cgo pkg-config: Qt5PdfWidgets
 */
 import "C"
-
diff --git a/qt/positioning/cflags.go b/qt/positioning/cflags.go
index a60a0a2d2..9af9a845f 100644
--- a/qt/positioning/cflags.go
+++ b/qt/positioning/cflags.go
@@ -1,6 +1,8 @@
 package positioning
 
 /*
+#cgo CXXFLAGS: -std=c++11
+#cgo CFLAGS: -std=gnu11
 #cgo pkg-config: Qt5Positioning
 */
 import "C"
diff --git a/qt/printsupport/cflags.go b/qt/printsupport/cflags.go
index 9781b75b5..6adc4674b 100644
--- a/qt/printsupport/cflags.go
+++ b/qt/printsupport/cflags.go
@@ -1,6 +1,8 @@
 package printsupport
 
 /*
+#cgo CXXFLAGS: -std=c++11
+#cgo CFLAGS: -std=gnu11
 #cgo pkg-config: Qt5PrintSupport
 */
 import "C"
diff --git a/qt/script/cflags.go b/qt/script/cflags.go
index 884008729..a97c95ded 100644
--- a/qt/script/cflags.go
+++ b/qt/script/cflags.go
@@ -1,6 +1,8 @@
 package script
 
 /*
+#cgo CXXFLAGS: -std=c++11
+#cgo CFLAGS: -std=gnu11
 #cgo pkg-config: Qt5Script
 */
 import "C"
diff --git a/qt/sql/cflags.go b/qt/sql/cflags.go
index 5e606f3fa..cf9f65cb5 100644
--- a/qt/sql/cflags.go
+++ b/qt/sql/cflags.go
@@ -1,6 +1,8 @@
 package sql
 
 /*
+#cgo CXXFLAGS: -std=c++11
+#cgo CFLAGS: -std=gnu11
 #cgo pkg-config: Qt5Sql
 */
 import "C"
diff --git a/qt/svg/cflags.go b/qt/svg/cflags.go
index e9b3f840d..d5b661a6a 100644
--- a/qt/svg/cflags.go
+++ b/qt/svg/cflags.go
@@ -1,6 +1,8 @@
 package svg
 
 /*
+#cgo CXXFLAGS: -std=c++11
+#cgo CFLAGS: -std=gnu11
 #cgo pkg-config: Qt5Svg
 */
 import "C"
diff --git a/qt/uiplugin/cflags.go b/qt/uiplugin/cflags.go
index abd4d0dc2..52b6cad39 100644
--- a/qt/uiplugin/cflags.go
+++ b/qt/uiplugin/cflags.go
@@ -1,6 +1,8 @@
 package uiplugin
 
 /*
+#cgo CXXFLAGS: -std=c++11
+#cgo CFLAGS: -std=gnu11
 #cgo pkg-config: Qt5UiPlugin Qt5Designer
 */
 import "C"
diff --git a/qt/uitools/cflags.go b/qt/uitools/cflags.go
index a6fac2aa8..f685bc2a2 100644
--- a/qt/uitools/cflags.go
+++ b/qt/uitools/cflags.go
@@ -1,6 +1,8 @@
 package uitools
 
 /*
+#cgo CXXFLAGS: -std=c++11
+#cgo CFLAGS: -std=gnu11
 #cgo pkg-config: Qt5UiTools
 */
 import "C"
diff --git a/qt/webchannel/cflags.go b/qt/webchannel/cflags.go
index 09e7f050f..d2ee372c0 100644
--- a/qt/webchannel/cflags.go
+++ b/qt/webchannel/cflags.go
@@ -1,6 +1,8 @@
 package webchannel
 
 /*
+#cgo CXXFLAGS: -std=c++11
+#cgo CFLAGS: -std=gnu11
 #cgo pkg-config: Qt5WebChannel
 */
 import "C"
diff --git a/qt/webengine/cflags.go b/qt/webengine/cflags.go
index 22b7e5523..03238ad02 100644
--- a/qt/webengine/cflags.go
+++ b/qt/webengine/cflags.go
@@ -1,6 +1,8 @@
 package webengine
 
 /*
+#cgo CXXFLAGS: -std=c++11
+#cgo CFLAGS: -std=gnu11
 #cgo pkg-config: Qt5WebEngineWidgets
 */
 import "C"
diff --git a/qt/webkit/cflags.go b/qt/webkit/cflags.go
index 5ba3b527f..3a161c26e 100644
--- a/qt/webkit/cflags.go
+++ b/qt/webkit/cflags.go
@@ -1,6 +1,8 @@
 package webkit
 
 /*
+#cgo CXXFLAGS: -std=c++11
+#cgo CFLAGS: -std=gnu11
 #cgo pkg-config: Qt5WebKitWidgets Qt5PrintSupport
 */
 import "C"
diff --git a/qt/websockets/cflags.go b/qt/websockets/cflags.go
index d096dd9b0..9fdd21094 100644
--- a/qt/websockets/cflags.go
+++ b/qt/websockets/cflags.go
@@ -1,7 +1,8 @@
 package websockets
 
 /*
+#cgo CXXFLAGS: -std=c++11
+#cgo CFLAGS: -std=gnu11
 #cgo pkg-config: Qt5WebSockets
 */
 import "C"
-
diff --git a/qt6/cbor/cflags.go b/qt6/cbor/cflags.go
index 1742dc877..2d430090e 100644
--- a/qt6/cbor/cflags.go
+++ b/qt6/cbor/cflags.go
@@ -1,6 +1,7 @@
 package cbor
 
 /*
+#cgo CXXFLAGS: -std=c++17
 #cgo pkg-config: Qt6Core
 */
 import "C"
diff --git a/qt6/cflags.go b/qt6/cflags.go
index da506dc88..b4ccfaac4 100644
--- a/qt6/cflags.go
+++ b/qt6/cflags.go
@@ -1,6 +1,7 @@
 package qt6
 
 /*
+#cgo CXXFLAGS: -std=c++17
 #cgo pkg-config: Qt6Widgets
 */
 import "C"
diff --git a/qt6/designer/cflags.go b/qt6/designer/cflags.go
index 00510e7e5..3b8e788b1 100644
--- a/qt6/designer/cflags.go
+++ b/qt6/designer/cflags.go
@@ -1,6 +1,7 @@
 package designer
 
 /*
+#cgo CXXFLAGS: -std=c++17
 #cgo pkg-config: Qt6UiPlugin Qt6Designer
 */
 import "C"
diff --git a/qt6/multimedia/cflags.go b/qt6/multimedia/cflags.go
index e17468ab4..7f96e5765 100644
--- a/qt6/multimedia/cflags.go
+++ b/qt6/multimedia/cflags.go
@@ -1,6 +1,7 @@
 package multimedia
 
 /*
+#cgo CXXFLAGS: -std=c++17
 #cgo pkg-config: Qt6MultimediaWidgets
 */
 import "C"
diff --git a/qt6/network/cflags.go b/qt6/network/cflags.go
index 902d8379a..8f03d70ec 100644
--- a/qt6/network/cflags.go
+++ b/qt6/network/cflags.go
@@ -1,6 +1,7 @@
 package network
 
 /*
+#cgo CXXFLAGS: -std=c++17
 #cgo pkg-config: Qt6Network
 */
 import "C"
diff --git a/qt6/network/dtls/cflags.go b/qt6/network/dtls/cflags.go
index e28308a77..c76861c3c 100644
--- a/qt6/network/dtls/cflags.go
+++ b/qt6/network/dtls/cflags.go
@@ -1,6 +1,7 @@
 package dtls
 
 /*
+#cgo CXXFLAGS: -std=c++17
 #cgo pkg-config: Qt6Network
 */
 import "C"
diff --git a/qt6/network/sctp/cflags.go b/qt6/network/sctp/cflags.go
index 762b17778..925cfc262 100644
--- a/qt6/network/sctp/cflags.go
+++ b/qt6/network/sctp/cflags.go
@@ -1,6 +1,7 @@
 package sctp
 
 /*
+#cgo CXXFLAGS: -std=c++17
 #cgo pkg-config: Qt6Network
 */
 import "C"
diff --git a/qt6/pdf/cflags.go b/qt6/pdf/cflags.go
index c0810a5e9..f8e317883 100644
--- a/qt6/pdf/cflags.go
+++ b/qt6/pdf/cflags.go
@@ -1,7 +1,7 @@
 package pdf
 
 /*
+#cgo CXXFLAGS: -std=c++17
 #cgo pkg-config: Qt6PdfWidgets
 */
 import "C"
-
diff --git a/qt6/positioning/cflags.go b/qt6/positioning/cflags.go
index 50ff7ed2d..e301a4731 100644
--- a/qt6/positioning/cflags.go
+++ b/qt6/positioning/cflags.go
@@ -1,6 +1,7 @@
 package positioning
 
 /*
+#cgo CXXFLAGS: -std=c++17
 #cgo pkg-config: Qt6Positioning
 */
 import "C"
diff --git a/qt6/printsupport/cflags.go b/qt6/printsupport/cflags.go
index 91dfe3fae..4280f294f 100644
--- a/qt6/printsupport/cflags.go
+++ b/qt6/printsupport/cflags.go
@@ -1,6 +1,7 @@
 package printsupport
 
 /*
+#cgo CXXFLAGS: -std=c++17
 #cgo pkg-config: Qt6PrintSupport
 */
 import "C"
diff --git a/qt6/qml/cflags.go b/qt6/qml/cflags.go
index 7ef82cd9d..dfdac2bfe 100644
--- a/qt6/qml/cflags.go
+++ b/qt6/qml/cflags.go
@@ -1,6 +1,7 @@
 package qml
 
 /*
+#cgo CXXFLAGS: -std=c++17
 #cgo pkg-config: Qt6Qml
 */
 import "C"
diff --git a/qt6/spatialaudio/cflags.go b/qt6/spatialaudio/cflags.go
index ec01d583e..b18dbe3c6 100644
--- a/qt6/spatialaudio/cflags.go
+++ b/qt6/spatialaudio/cflags.go
@@ -1,6 +1,7 @@
 package spatialaudio
 
 /*
+#cgo CXXFLAGS: -std=c++17
 #cgo pkg-config: Qt6SpatialAudio
 */
 import "C"
diff --git a/qt6/sql/cflags.go b/qt6/sql/cflags.go
index 81578214c..255e911c6 100644
--- a/qt6/sql/cflags.go
+++ b/qt6/sql/cflags.go
@@ -1,6 +1,7 @@
 package sql
 
 /*
+#cgo CXXFLAGS: -std=c++17
 #cgo pkg-config: Qt6Sql
 */
 import "C"
diff --git a/qt6/statemachine/cflags.go b/qt6/statemachine/cflags.go
index 655e92255..b77f8ff58 100644
--- a/qt6/statemachine/cflags.go
+++ b/qt6/statemachine/cflags.go
@@ -1,6 +1,7 @@
 package statemachine
 
 /*
+#cgo CXXFLAGS: -std=c++17
 #cgo pkg-config: Qt6StateMachine Qt6StateMachineQml
 */
 import "C"
diff --git a/qt6/svg/cflags.go b/qt6/svg/cflags.go
index 3854d207c..927a2ca85 100644
--- a/qt6/svg/cflags.go
+++ b/qt6/svg/cflags.go
@@ -1,6 +1,7 @@
 package svg
 
 /*
+#cgo CXXFLAGS: -std=c++17
 #cgo pkg-config: Qt6SvgWidgets
 */
 import "C"
diff --git a/qt6/uiplugin/cflags.go b/qt6/uiplugin/cflags.go
index 45de81498..25fb23655 100644
--- a/qt6/uiplugin/cflags.go
+++ b/qt6/uiplugin/cflags.go
@@ -1,6 +1,7 @@
 package uiplugin
 
 /*
+#cgo CXXFLAGS: -std=c++17
 #cgo pkg-config: Qt6UiPlugin Qt6Designer
 */
 import "C"
diff --git a/qt6/uitools/cflags.go b/qt6/uitools/cflags.go
index 9ce148c7b..4bf521794 100644
--- a/qt6/uitools/cflags.go
+++ b/qt6/uitools/cflags.go
@@ -1,6 +1,7 @@
 package uitools
 
 /*
+#cgo CXXFLAGS: -std=c++17
 #cgo pkg-config: Qt6UiTools
 */
 import "C"
diff --git a/qt6/webchannel/cflags.go b/qt6/webchannel/cflags.go
index 3b90586db..e019d2c12 100644
--- a/qt6/webchannel/cflags.go
+++ b/qt6/webchannel/cflags.go
@@ -1,6 +1,7 @@
 package webchannel
 
 /*
+#cgo CXXFLAGS: -std=c++17
 #cgo pkg-config: Qt6WebChannel
 */
 import "C"
diff --git a/qt6/webchannel/qmlwebchannel/cflags.go b/qt6/webchannel/qmlwebchannel/cflags.go
index 32207c1a7..fea5cdee1 100644
--- a/qt6/webchannel/qmlwebchannel/cflags.go
+++ b/qt6/webchannel/qmlwebchannel/cflags.go
@@ -1,6 +1,7 @@
 package qmlwebchannel
 
 /*
+#cgo CXXFLAGS: -std=c++17
 #cgo pkg-config: Qt6WebChannel
 */
 import "C"
diff --git a/qt6/webengine/cflags.go b/qt6/webengine/cflags.go
index cb165fd22..e1bfa731c 100644
--- a/qt6/webengine/cflags.go
+++ b/qt6/webengine/cflags.go
@@ -1,6 +1,7 @@
 package webengine
 
 /*
+#cgo CXXFLAGS: -std=c++17
 #cgo pkg-config: Qt6WebEngineWidgets
 */
 import "C"
diff --git a/qt6/websockets/cflags.go b/qt6/websockets/cflags.go
index bbdd61ad3..cb80a2861 100644
--- a/qt6/websockets/cflags.go
+++ b/qt6/websockets/cflags.go
@@ -1,7 +1,7 @@
 package websockets
 
 /*
+#cgo CXXFLAGS: -std=c++17
 #cgo pkg-config: Qt6WebSockets
 */
 import "C"
-