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here is the log from the commit of package qt6-base for openSUSE:Factory 
checked in at 2022-05-12 22:58:18
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Comparing /work/SRC/openSUSE:Factory/qt6-base (Old)
 and      /work/SRC/openSUSE:Factory/.qt6-base.new.1538 (New)
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

Package is "qt6-base"

Thu May 12 22:58:18 2022 rev:20 rq:976078 version:6.3.0

Changes:
--------
--- /work/SRC/openSUSE:Factory/qt6-base/qt6-base.changes        2022-05-03 
21:19:43.689055503 +0200
+++ /work/SRC/openSUSE:Factory/.qt6-base.new.1538/qt6-base.changes      
2022-05-12 22:58:39.260659370 +0200
@@ -1,0 +2,8 @@
+Tue May 10 07:30:33 UTC 2022 - Christophe Giboudeaux <christo...@krop.fr>
+
+- Add GCC 12 compatibility changes:
+  * 0001-XCB-fix-GCC-12-warning-about-uninitialized-variable-.patch
+  * 0001-Fix-build-with-GCC12-avoid-QCborStreamReader-prepars.patch
+  * 0001-QtOpenGL-Fix-build-with-GCC-12-qt_imageForBrush-is-i.patch
+
+-------------------------------------------------------------------

New:
----
  0001-Fix-build-with-GCC12-avoid-QCborStreamReader-prepars.patch
  0001-QtOpenGL-Fix-build-with-GCC-12-qt_imageForBrush-is-i.patch
  0001-XCB-fix-GCC-12-warning-about-uninitialized-variable-.patch

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

Other differences:
------------------
++++++ qt6-base.spec ++++++
--- /var/tmp/diff_new_pack.fmorNo/_old  2022-05-12 22:58:40.188660616 +0200
+++ /var/tmp/diff_new_pack.fmorNo/_new  2022-05-12 22:58:40.192660621 +0200
@@ -40,6 +40,9 @@
 Source99:       qt6-base-rpmlintrc
 # Patches 0-100 are upstream patches #
 Patch0:         0001-CMake-Don-t-hardcode-the-library-directory-name.patch
+Patch1:         0001-XCB-fix-GCC-12-warning-about-uninitialized-variable-.patch
+Patch2:         0001-Fix-build-with-GCC12-avoid-QCborStreamReader-prepars.patch
+Patch3:         0001-QtOpenGL-Fix-build-with-GCC-12-qt_imageForBrush-is-i.patch
 # Patches 100-200 are openSUSE and/or non-upstream(able) patches #
 Patch100:       0001-Tell-the-truth-about-private-API.patch
 %if 0%{?suse_version} == 1500

++++++ 0001-Fix-build-with-GCC12-avoid-QCborStreamReader-prepars.patch ++++++
>From 65e233bd48801c1d48da735d62d00179cb986155 Mon Sep 17 00:00:00 2001
From: Thiago Macieira <thiago.macie...@intel.com>
Date: Fri, 22 Apr 2022 10:22:52 -0700
Subject: [PATCH] Fix build with GCC12: avoid QCborStreamReader::preparse()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

GCC 12 doesn't like that we're calling preparse() on the empty
QByteArray() (whose .data() == &QByteArray::_empty), despite the
condition being impossible.

Reported at https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105348

In function ???void* qt_cbor_decoder_read(void*, void*, size_t, size_t)???,
    inlined from ???void* read_bytes_unchecked(const CborValue*, void*, size_t, 
size_t)??? at cborinternal_p.h:234:51,
    inlined from ???uint32_t read_uint32(const CborValue*, size_t)??? at 
cborinternal_p.h:271:25,
    inlined from ???uint64_t _cbor_value_decode_int64_internal(const 
CborValue*)??? at cborparser.c:333:23,
    inlined from ???uint64_t _cbor_value_extract_int64_helper(const 
CborValue*)??? at cbor.h:372:50,
    inlined from ???void QCborStreamReader::preparse()??? at 
qcborstreamreader.cpp:769:59,
    inlined from ???QCborStreamReader::QCborStreamReader(const QByteArray&)??? 
at qcborstreamreader.cpp:825:13,
    inlined from ???QCborStreamReader::QCborStreamReader()??? at 
qcborstreamreader.cpp:790:37,
    inlined from 
???QtPrivate::QMetaTypeForType<QCborStreamReader>::getDefaultCtr()::<lambda(const
 QtPrivate::QMetaTypeInterface*, void*)>??? at qmetatype.h:2302:65,
    inlined from ???static constexpr void 
QtPrivate::QMetaTypeForType<QCborStreamReader>::getDefaultCtr()::<lambda(const 
QtPrivate::QMetaTypeInterface*, void*)>::_FUN(const 
QtPrivate::QMetaTypeInterface*, void*)??? at qmetatype.h:2302:20:
qcborstreamreader.cpp:706:18: error: array subscript ???unsigned int[0]??? is 
partly outside array bounds of ???const char [1]??? [-Werror=array-bounds]
qbytearray.h:92:23: note: object ???QByteArray::_empty??? of size 1

Change-Id: If05aeeb7176e4f13af9afffd16e8485d34e36100
Reviewed-by: Ulf Hermann <ulf.herm...@qt.io>
(cherry picked from commit d7d6f46324c7dbcfb02ddea3ab1b8db433c9b0d0)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_...@qt-project.org>
---
 src/corelib/serialization/qcborstreamreader.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/corelib/serialization/qcborstreamreader.cpp 
b/src/corelib/serialization/qcborstreamreader.cpp
index cf90f3e397..273941214b 100644
--- a/src/corelib/serialization/qcborstreamreader.cpp
+++ b/src/corelib/serialization/qcborstreamreader.cpp
@@ -565,7 +565,7 @@ public:
     CborValue currentElement;
     QCborError lastError = {};
 
-    QByteArray::size_type bufferStart;
+    QByteArray::size_type bufferStart = 0;
     bool corrupt = false;
 
     QCborStreamReaderPrivate(const QByteArray &data)
@@ -787,7 +787,7 @@ inline void QCborStreamReader::preparse()
    \sa addData(), isValid()
  */
 QCborStreamReader::QCborStreamReader()
-    : QCborStreamReader(QByteArray())
+    : d(new QCborStreamReaderPrivate({})), type_(Invalid)
 {
 }
 
-- 
2.36.0


++++++ 0001-QtOpenGL-Fix-build-with-GCC-12-qt_imageForBrush-is-i.patch ++++++
>From fe84b31c871449da9d75c2d2615f3f061d969234 Mon Sep 17 00:00:00 2001
From: Thiago Macieira <thiago.macie...@intel.com>
Date: Fri, 22 Apr 2022 09:44:43 -0700
Subject: [PATCH] QtOpenGL: Fix build with GCC 12: qt_imageForBrush is in QtGui

/usr/bin/ld: lib/libQt6OpenGL.t.so.6.4.0: protected symbol 
`_Z16qt_imageForBrushib' isn't defined

Change-Id: If05aeeb7176e4f13af9afffd16e845af9638337b
Reviewed-by: Giuseppe D'Angelo <giuseppe.dang...@kdab.com>
(cherry picked from commit 507115ebbb04cdebd09125a422fa3c081987a371)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_...@qt-project.org>
---
 src/opengl/qopenglpaintengine.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/opengl/qopenglpaintengine.cpp 
b/src/opengl/qopenglpaintengine.cpp
index 98ab71dad5..5b6da3fa20 100644
--- a/src/opengl/qopenglpaintengine.cpp
+++ b/src/opengl/qopenglpaintengine.cpp
@@ -112,7 +112,7 @@
 QT_BEGIN_NAMESPACE
 
 
-Q_OPENGL_EXPORT QImage qt_imageForBrush(int brushStyle, bool invert);
+Q_GUI_EXPORT QImage qt_imageForBrush(int brushStyle, bool invert);
 
 ////////////////////////////////// Private Methods 
//////////////////////////////////////////
 
-- 
2.36.0


++++++ 0001-XCB-fix-GCC-12-warning-about-uninitialized-variable-.patch ++++++
>From f4e4af57b8829a0290264b9612be4a3a0946e88d Mon Sep 17 00:00:00 2001
From: Thiago Macieira <thiago.macie...@intel.com>
Date: Fri, 22 Apr 2022 11:21:31 -0700
Subject: [PATCH] XCB: fix GCC 12 warning about uninitialized variable use
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

GCC is right that symbolsGroup2 could remain uninitialized for some
conditions. So always initialize it.

qxcbkeyboard.cpp:284:48: error: ???symbolsGroup2??? may be used uninitialized 
[-Werror=maybe-uninitialized]

Change-Id: If05aeeb7176e4f13af9afffd16e84af7d7806b0d
Reviewed-by: Zhang Hao <543985...@qq.com>
Reviewed-by: Lars Knoll <lars.kn...@qt.io>
(cherry picked from commit e92e48bc791ddafe14be39aae10790b680ddd1f7)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_...@qt-project.org>
---
 src/plugins/platforms/xcb/qxcbkeyboard.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/plugins/platforms/xcb/qxcbkeyboard.cpp 
b/src/plugins/platforms/xcb/qxcbkeyboard.cpp
index 48abbbf74c..99870d6f45 100644
--- a/src/plugins/platforms/xcb/qxcbkeyboard.cpp
+++ b/src/plugins/platforms/xcb/qxcbkeyboard.cpp
@@ -257,7 +257,7 @@ struct xkb_keymap *QXcbKeyboard::keymapFromCore(const 
KeysymModifierMap &keysymM
             const int maxGroup1 = 4; // We only support 4 shift states anyway
             const int maxGroup2 = 2; // Only 3rd and 4th keysym are group 2
             xcb_keysym_t symbolsGroup1[maxGroup1];
-            xcb_keysym_t symbolsGroup2[maxGroup2];
+            xcb_keysym_t symbolsGroup2[maxGroup2] = { XKB_KEY_NoSymbol, 
XKB_KEY_NoSymbol };
             for (int i = 0; i < maxGroup1 + maxGroup2; i++) {
                 xcb_keysym_t sym = i < keysymsPerKeycode ? codeMap[i] : 
XKB_KEY_NoSymbol;
                 if (mapGroup2ToLevel3) {
-- 
2.36.0

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