qtbase: add workaround for internal compiler error

mingw32 build fails with gcc's internal compiler error:
in ix86_compute_frame_layout, at config/i386/i386.c:11420
As a workaround, disable to offending code.

Task-number: QTBUG-64707
Change-Id: I8fcc767dc3eaba131944a06d13c773842a18af76
Reviewed-by: Mikko Gronoff <mikko.gronoff@qt.io>

2 files changed, 27 insertions, 0 deletions

diff --git a/recipes-qt/qt5/nativesdk-qtbase_git.bbappend b/recipes-qt/qt5/nativesdk-qtbase_git.bbappend
index d79bf57..2ae2206 100644
--- a/recipes-qt/qt5/nativesdk-qtbase_git.bbappend
+++ b/recipes-qt/qt5/nativesdk-qtbase_git.bbappend
@@ -40,3 +40,5 @@ PACKAGECONFIG[openssl] = "-openssl,-no-openssl,openssl,libssl"
 
 fakeroot do_generate_qt_environment_file_mingw32() {
 }
+
+SRC_URI_append_mingw32 = "file://0001-disable-qt_random_cpu.patch"
diff --git a/recipes-qt/qt5/qtbase/0001-disable-qt_random_cpu.patch b/recipes-qt/qt5/qtbase/0001-disable-qt_random_cpu.patch
new file mode 100644
index 0000000..720a8ef
--- /dev/null
+++ b/recipes-qt/qt5/qtbase/0001-disable-qt_random_cpu.patch
@@ -0,0 +1,25 @@
+From ef03baa1188f411948f99c18d5e9414721996158 Mon Sep 17 00:00:00 2001
+From: Samuli Piippo <samuli.piippo@qt.io>
+Date: Thu, 23 Nov 2017 11:28:47 +0200
+Subject: [PATCH] disable qt_random_cpu
+
+The code caused internal compiler error when compiling for mingw32
+
+Change-Id: Ieba798a9599a6d683c6630c6cd3731b2b909b628
+---
+ src/corelib/global/qrandom.cpp | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/corelib/global/qrandom.cpp b/src/corelib/global/qrandom.cpp
+index 72ac8d3..10a8390 100644
+--- a/src/corelib/global/qrandom.cpp
++++ b/src/corelib/global/qrandom.cpp
+@@ -92,7 +92,7 @@ DECLSPEC_IMPORT BOOLEAN WINAPI SystemFunction036(PVOID RandomBuffer, ULONG Rando
+ 
+ QT_BEGIN_NAMESPACE
+ 
+-#if defined(Q_PROCESSOR_X86) && QT_COMPILER_SUPPORTS_HERE(RDRND)
++#if 0
+ static qssize_t qt_random_cpu(void *buffer, qssize_t count) Q_DECL_NOTHROW;
+ 
+ #  ifdef Q_PROCESSOR_X86_64