diff --git a/package/bluez5_utils/Config.in b/package/bluez5_utils/Config.in
index 1e9eda31dc..73c6f01324 100644
--- a/package/bluez5_utils/Config.in
+++ b/package/bluez5_utils/Config.in
@@ -62,12 +62,16 @@ config BR2_PACKAGE_BLUEZ5_UTILS_PLUGINS_HEALTH
 
 config BR2_PACKAGE_BLUEZ5_UTILS_PLUGINS_MESH
 	bool "build mesh profile"
+	depends on BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_12 # ell
 	select BR2_PACKAGE_ELL
 	select BR2_PACKAGE_JSON_C
 	select BR2_PACKAGE_READLINE
 	help
 	  Build BlueZ 5.x mesh plugin
 
+comment "mesh profile needs a toolchain w/ headers >= 4.12"
+	depends on !BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_12
+
 config BR2_PACKAGE_BLUEZ5_UTILS_PLUGINS_MIDI
 	bool "build midi profile"
 	select BR2_PACKAGE_ALSA_LIB
diff --git a/package/connman/Config.in b/package/connman/Config.in
index 614b826f96..72b76bf19d 100644
--- a/package/connman/Config.in
+++ b/package/connman/Config.in
@@ -85,8 +85,12 @@ config BR2_PACKAGE_CONNMAN_NEARD
 config BR2_PACKAGE_CONNMAN_OFONO
 	bool "enable ofono support"
 	depends on BR2_TOOLCHAIN_HAS_SYNC_4 # ofono
+	depends on BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_12 # ofono
 	select BR2_PACKAGE_OFONO
 
+comment "ofono support needs a toolchain w/ headers >= 4.12"
+	depends on !BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_12
+
 config BR2_PACKAGE_CONNMAN_DEBUG
 	bool "enable compiling with debugging information"
 
diff --git a/package/ell/Config.in b/package/ell/Config.in
index f27d581f98..d337154878 100644
--- a/package/ell/Config.in
+++ b/package/ell/Config.in
@@ -1,6 +1,7 @@
 config BR2_PACKAGE_ELL
 	bool "ell"
 	depends on BR2_TOOLCHAIN_HAS_SYNC_4
+	depends on BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_12
 	depends on !BR2_STATIC_LIBS
 	depends on BR2_USE_WCHAR
 	help
@@ -8,6 +9,7 @@ config BR2_PACKAGE_ELL
 
 	  https://01.org/ell
 
-comment "ell needs a toolchain w/ dynamic library, wchar"
+comment "ell needs a toolchain w/ dynamic library, wchar, headers >= 4.12"
 	depends on BR2_TOOLCHAIN_HAS_SYNC_4
-	depends on BR2_STATIC_LIBS || !BR2_USE_WCHAR
+	depends on BR2_STATIC_LIBS || !BR2_USE_WCHAR || \
+		!BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_12
diff --git a/package/iwd/Config.in b/package/iwd/Config.in
index c790f3dba1..eff24a8599 100644
--- a/package/iwd/Config.in
+++ b/package/iwd/Config.in
@@ -1,6 +1,7 @@
 config BR2_PACKAGE_IWD
 	bool "iwd"
 	depends on BR2_TOOLCHAIN_HAS_SYNC_4 # ell
+	depends on BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_12 # ell
 	depends on !BR2_STATIC_LIBS # ell
 	depends on BR2_USE_WCHAR # ell
 	select BR2_PACKAGE_ELL
@@ -9,6 +10,7 @@ config BR2_PACKAGE_IWD
 
 	  https://iwd.wiki.kernel.org/
 
-comment "iwd needs a toolchain w/ dynamic library, wchar"
+comment "iwd needs a toolchain w/ dynamic library, wchar, headers >= 4.12"
 	depends on BR2_TOOLCHAIN_HAS_SYNC_4 # ell
-	depends on BR2_STATIC_LIBS || !BR2_USE_WCHAR
+	depends on BR2_STATIC_LIBS || !BR2_USE_WCHAR || \
+		!BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_12
diff --git a/package/ofono/Config.in b/package/ofono/Config.in
index 57ee4bc536..c1d0cae4ef 100644
--- a/package/ofono/Config.in
+++ b/package/ofono/Config.in
@@ -5,6 +5,7 @@ config BR2_PACKAGE_OFONO
 	depends on BR2_USE_MMU # dbus, libglib2
 	depends on !BR2_STATIC_LIBS # dlopen(), ell
 	depends on BR2_TOOLCHAIN_HAS_SYNC_4
+	depends on BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_12 # ell
 	select BR2_PACKAGE_DBUS
 	select BR2_PACKAGE_ELL
 	select BR2_PACKAGE_LIBCAP_NG
@@ -17,7 +18,9 @@ config BR2_PACKAGE_OFONO
 
 	  http://ofono.org/
 
-comment "ofono needs a toolchain w/ dynamic library, wchar, threads"
+comment "ofono needs a toolchain w/ dynamic library, wchar, threads, headers >= 4.12"
 	depends on BR2_USE_MMU
 	depends on BR2_TOOLCHAIN_HAS_SYNC_4
-	depends on BR2_STATIC_LIBS || !BR2_USE_WCHAR || !BR2_TOOLCHAIN_HAS_THREADS
+	depends on BR2_STATIC_LIBS || !BR2_USE_WCHAR || \
+		!BR2_TOOLCHAIN_HAS_THREADS || \
+		!BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_12