qt5base: Add patch to fix compile issue with gcc9

Fixes an issue when building Qt5 on a machine that has gcc9 as the
system compiler.

Original commit in qt5base:
a52d7861ed

Signed-off-by: Julien Beraud <julien.beraud@orolia.com>
Acked-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
[Peter: drop patch number]
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/qt5/qt5base/5.11.3/0006-Fix-compile-issue-with-gcc-9.patch

@@ -0,0 +1,32 @@
+From e094806951ff7337b5b0c534db479e3808f153a7 Mon Sep 17 00:00:00 2001
+From: Allan Sandfeld Jensen <allan.jensen@qt.io>
+Date: Tue, 13 Nov 2018 16:00:23 +0100
+Subject: [PATCH] Fix compile issue with gcc 9
+
+It appears messenne_twisters in the latest libstdc++ has one more
+requirement before it is willing to construct with our
+SystemGenerator struct as an sseq provider.
+
+Change-Id: If38151d1fa6f40a80274acc26d9ed6b4ac6049fe
+Reviewed-by: Giuseppe D'Angelo <giuseppe.dangelo@kdab.com>
+Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
+Signed-off-by: Julien Beraud <julien.beraud@orolia.com>
+---
+ src/corelib/global/qrandom.cpp | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/src/corelib/global/qrandom.cpp b/src/corelib/global/qrandom.cpp
+index ebf9864b15..577736a867 100644
+--- a/src/corelib/global/qrandom.cpp
++++ b/src/corelib/global/qrandom.cpp
+@@ -218,6 +218,7 @@ struct QRandomGenerator::SystemGenerator
+ #endif // Q_OS_WINRT
+ 
+     static SystemGenerator &self();
++    typedef quint32 result_type;
+     void generate(quint32 *begin, quint32 *end) Q_DECL_NOEXCEPT_EXPR(FillBufferNoexcept);
+ 
+     // For std::mersenne_twister_engine implementations that use something
+-- 
+2.23.0
+