qt: Script Module needs a toolchain with NPTL

Qt Script Module uses pthread_getattr_np() which is implemented in
toolchains with NPTL. Otherwise the compilation will fail showing this
error message:

../3rdparty/javascriptcore/JavaScriptCore/runtime/Collector.cpp: In
function ‘void* QTJSC::currentThreadStackBase()’:
../3rdparty/javascriptcore/JavaScriptCore/runtime/Collector.cpp:692:42:
error: ‘pthread_getattr_np’ was not declared in this scope

Signed-off-by: Vicente Olivert Riera <Vincent.Riera@imgtec.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/grantlee/Config.in

@@ -1,5 +1,6 @@
 config BR2_PACKAGE_GRANTLEE
 	bool "grantlee"
+	depends on BR2_TOOLCHAIN_HAS_THREADS_NPTL # Qt Script
 	depends on BR2_PACKAGE_QT_ARCH_SUPPORTS_WEBKIT
 	depends on BR2_PACKAGE_QT
 	select BR2_PACKAGE_QT_STL
@@ -9,3 +10,7 @@ config BR2_PACKAGE_GRANTLEE
 	  Qt implemantation of the Django template framework
 
 	  http://www.grantlee.org
+
+comment "grantlee needs a toolchain with NPTL"
+	depends on !BR2_TOOLCHAIN_HAS_THREADS_NPTL
+	depends on BR2_PACKAGE_QT_ARCH_SUPPORTS_WEBKIT

package/qt/Config.in

@@ -402,11 +402,16 @@ config BR2_PACKAGE_QT_OPENSSL
 config BR2_PACKAGE_QT_SCRIPT
 	bool "Script Module"
 	depends on BR2_PACKAGE_QT_ARCH_SUPPORTS_WEBKIT
+	depends on BR2_TOOLCHAIN_HAS_THREADS_NPTL # needs pthread_getattr_np()
 	default y
 	help
 	  Build the Qt Script module.
 	  if unsure, say y.
 
+comment "Script Module needs a toolchain with NPTL"
+	depends on !BR2_TOOLCHAIN_HAS_THREADS_NPTL
+	depends on BR2_PACKAGE_QT_ARCH_SUPPORTS_WEBKIT
+
 config BR2_PACKAGE_QT_SCRIPTTOOLS
 	bool "Script Tools Module"
 	depends on BR2_PACKAGE_QT_SCRIPT