diff -rupN qtbase-everywhere-src-5.11.3/mkspecs/mingw-w64-g++/qmake.conf qtbase-everywhere-src-5.11.3-new/mkspecs/mingw-w64-g++/qmake.conf
--- qtbase-everywhere-src-5.11.3/mkspecs/mingw-w64-g++/qmake.conf 1970-01-01 01:00:00.000000000 +0100
+++ qtbase-everywhere-src-5.11.3-new/mkspecs/mingw-w64-g++/qmake.conf 2019-01-14 11:17:16.194665176 +0100
@@ -0,0 +1,125 @@
+#
+# qmake configuration for i686-w64-mingw32-g++ and x86_64-w64-mingw32-g++
+#
+# Written for cross compilation with mingw-w64 under GNU/Linux
+#
+# Cross compile example for i686-w64-mingw32-g++:
+# configure -xplatform mingw-w64-g++ -device-option CROSS_COMPILE=i686-w64-mingw32-
+#
+
+load(device_config)
+include(../common/angle.conf)
+
+MAKEFILE_GENERATOR = MINGW
+QMAKE_PLATFORM = win32 win32-g++ mingw
+CONFIG += debug_and_release debug_and_release_target precompile_header
+DEFINES += UNICODE
+QMAKE_COMPILER_DEFINES += __GNUC__ WIN32
+
+QMAKE_EXT_OBJ = .o
+QMAKE_EXT_RES = _res.o
+
+QMAKE_COMPILER = gcc
+
+QMAKE_CC = $${CROSS_COMPILE}gcc
+QMAKE_LEX = flex
+QMAKE_LEXFLAGS =
+QMAKE_YACC = bison -y
+QMAKE_YACCFLAGS = -d
+QMAKE_CFLAGS = -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions --param=ssp-buffer-size=4 -fno-keep-inline-dllexport $${CROSS_COMPILE_CFLAGS}
+QMAKE_CFLAGS_DEPS = -M
+QMAKE_CFLAGS_WARN_ON = -Wall -Wextra
+QMAKE_CFLAGS_WARN_OFF = -w
+QMAKE_CFLAGS_RELEASE = -O2
+QMAKE_CFLAGS_RELEASE_WITH_DEBUGINFO = -O2 -g
+QMAKE_CFLAGS_DEBUG = -g
+QMAKE_CFLAGS_YACC = -Wno-unused -Wno-parentheses
+QMAKE_CFLAGS_SPLIT_SECTIONS = -ffunction-sections
+QMAKE_CFLAGS_SSE2 = -msse2 -mstackrealign
+QMAKE_CFLAGS_SSE3 = -msse3
+QMAKE_CFLAGS_SSSE3 = -mssse3
+QMAKE_CFLAGS_SSE4_1 = -msse4.1
+QMAKE_CFLAGS_SSE4_2 = -msse4.2
+QMAKE_CFLAGS_AVX = -mavx
+QMAKE_CFLAGS_AVX2 = -mavx2
+QMAKE_CFLAGS_NEON = -mfpu=neon
+
+QMAKE_CXX = $${CROSS_COMPILE}g++
+QMAKE_CXXFLAGS = $$QMAKE_CFLAGS
+QMAKE_CXXFLAGS_DEPS = $$QMAKE_CFLAGS_DEPS
+QMAKE_CXXFLAGS_WARN_ON = $$QMAKE_CFLAGS_WARN_ON
+QMAKE_CXXFLAGS_WARN_OFF = $$QMAKE_CFLAGS_WARN_OFF
+QMAKE_CXXFLAGS_RELEASE = $$QMAKE_CFLAGS_RELEASE
+QMAKE_CXXFLAGS_RELEASE_WITH_DEBUGINFO = $$QMAKE_CFLAGS_RELEASE_WITH_DEBUGINFO
+QMAKE_CXXFLAGS_DEBUG = $$QMAKE_CFLAGS_DEBUG
+QMAKE_CXXFLAGS_YACC = $$QMAKE_CFLAGS_YACC
+QMAKE_CXXFLAGS_THREAD = $$QMAKE_CFLAGS_THREAD
+QMAKE_CXXFLAGS_RTTI_ON = -frtti
+QMAKE_CXXFLAGS_RTTI_OFF = -fno-rtti
+QMAKE_CXXFLAGS_EXCEPTIONS_ON = -fexceptions -mthreads
+QMAKE_CXXFLAGS_EXCEPTIONS_OFF = -fno-exceptions
+QMAKE_CXXFLAGS_CXX11 = -std=c++11
+QMAKE_CXXFLAGS_CXX14 = -std=c++1y
+QMAKE_CXXFLAGS_CXX1Z = -std=c++1z
+QMAKE_CXXFLAGS_GNUCXX11 = -std=gnu++11
+QMAKE_CXXFLAGS_GNUCXX14 = -std=gnu++1y
+QMAKE_CXXFLAGS_GNUCXX1Z = -std=gnu++1z
+QMAKE_CXXFLAGS_SPLIT_SECTIONS = $$QMAKE_CFLAGS_SPLIT_SECTIONS
+
+QMAKE_INCDIR =
+
+QMAKE_RUN_CC = $(CC) -c $(CFLAGS) $(INCPATH) -o $obj $src
+QMAKE_RUN_CC_IMP = $(CC) -c $(CFLAGS) $(INCPATH) -o $@ $<
+QMAKE_RUN_CXX = $(CXX) -c $(CXXFLAGS) $(INCPATH) -o $obj $src
+QMAKE_RUN_CXX_IMP = $(CXX) -c $(CXXFLAGS) $(INCPATH) -o $@ $<
+
+QMAKE_LINK = $${CROSS_COMPILE}g++
+QMAKE_LINK_C = $${CROSS_COMPILE}gcc
+QMAKE_LFLAGS = -g
+QMAKE_LFLAGS_EXCEPTIONS_ON = -mthreads
+QMAKE_LFLAGS_EXCEPTIONS_OFF =
+QMAKE_LFLAGS_RELEASE =
+QMAKE_LFLAGS_DEBUG =
+QMAKE_LFLAGS_CONSOLE = -Wl,-subsystem,console
+QMAKE_LFLAGS_WINDOWS = -Wl,-subsystem,windows
+QMAKE_LFLAGS_DLL = -shared
+QMAKE_LFLAGS_CXX11 =
+QMAKE_LFLAGS_CXX14 =
+QMAKE_LFLAGS_CXX1Z =
+QMAKE_LFLAGS_GCSECTIONS = -Wl,--gc-sections
+QMAKE_LINK_OBJECT_MAX = 10
+QMAKE_LINK_OBJECT_SCRIPT = object_script
+QMAKE_PREFIX_SHLIB =
+QMAKE_EXTENSION_SHLIB = dll
+QMAKE_PREFIX_STATICLIB = lib
+QMAKE_EXTENSION_STATICLIB = a
+QMAKE_EXTENSION_IMPORTLIB = dll.a
+
+QMAKE_IDL = $${CROSS_COMPILE}widl
+QMAKE_LIB = $${CROSS_COMPILE}ar -rc
+QMAKE_RC = $${CROSS_COMPILE}windres
+QMAKE_DLLTOOL = $${CROSS_COMPILE}dlltool
+QMAKE_LRELEASE = $${CROSS_COMPILE}lrelease-qt5
+
+QMAKE_STRIP = $${CROSS_COMPILE}strip
+QMAKE_STRIPFLAGS_LIB += --strip-unneeded
+QMAKE_OBJCOPY = $${CROSS_COMPILE}objcopy
+QMAKE_NM = $${CROSS_COMPILE}nm -P
+
+PKG_CONFIG = $${CROSS_COMPILE}pkg-config
+QMAKE_PKG_CONFIG = $${CROSS_COMPILE}pkg-config
+
+QMAKE_LIBS =
+QMAKE_LIBS_CORE = -lz -lpcre2-16 -lversion -lole32 -luuid -lwinmm -lws2_32 -ladvapi32 -lshell32 -luser32 -lkernel32 -lnetapi32 -luserenv -liconv
+QMAKE_LIBS_GUI = -lgdi32 -lcomdlg32 -loleaut32 -limm32 -lwinmm -lws2_32 -lole32 -luuid -luser32 -ladvapi32 -luxtheme -ljpeg -lpng \
+ $$system($${QMAKE_PKG_CONFIG} --static --libs harfbuzz) \
+ $$system($${QMAKE_PKG_CONFIG} --static --libs freetype2)
+QMAKE_LIBS_NETWORK = -lws2_32 -lcrypt32 -ldnsapi -liphlpapi
+QMAKE_LIBS_DBUS = $$system($${QMAKE_PKG_CONFIG} --static --libs dbus-1)
+QMAKE_LIBS_OPENGL = -lglu32 -lopengl32 -lgdi32 -luser32
+QMAKE_LIBS_OPENGL_ES2 = -l$${LIBEGL_NAME} -l$${LIBGLESV2_NAME} -ld3d9 -ldxguid -lgdi32 -luser32
+QMAKE_LIBS_OPENGL_ES2_DEBUG = -l$${LIBEGL_NAME} -l$${LIBGLESV2_NAME} -ld3d9 -ldxguid -lgdi32 -luser32
+QMAKE_LIBS_COMPAT = -ladvapi32 -lshell32 -lcomdlg32 -luser32 -lgdi32 -lws2_32
+QMAKE_LIBS_QT_ENTRY = -lmingw32 -lqt5main
+
+load(qt_config)
diff -rupN qtbase-everywhere-src-5.11.3/mkspecs/mingw-w64-g++/qplatformdefs.h qtbase-everywhere-src-5.11.3-new/mkspecs/mingw-w64-g++/qplatformdefs.h
--- qtbase-everywhere-src-5.11.3/mkspecs/mingw-w64-g++/qplatformdefs.h 1970-01-01 01:00:00.000000000 +0100
+++ qtbase-everywhere-src-5.11.3-new/mkspecs/mingw-w64-g++/qplatformdefs.h 2019-01-14 11:17:16.194665176 +0100
@@ -0,0 +1,155 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the qmake spec of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QPLATFORMDEFS_H
+#define QPLATFORMDEFS_H
+
+#ifdef UNICODE
+#ifndef _UNICODE
+#define _UNICODE
+#endif
+#endif
+
+// Get Qt defines/settings
+
+#include "qglobal.h"
+
+#include <tchar.h>
+#include <io.h>
+#include <direct.h>
+#include <stdio.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <sys/stat.h>
+#include <stdlib.h>
+#include <limits.h>
+
+#if !defined(_WIN32_WINNT) || (_WIN32_WINNT-0 < 0x0500)
+typedef enum {
+ NameUnknown = 0,
+ NameFullyQualifiedDN = 1,
+ NameSamCompatible = 2,
+ NameDisplay = 3,
+ NameUniqueId = 6,
+ NameCanonical = 7,
+ NameUserPrincipal = 8,
+ NameCanonicalEx = 9,
+ NameServicePrincipal = 10,
+ NameDnsDomain = 12
+} EXTENDED_NAME_FORMAT, *PEXTENDED_NAME_FORMAT;
+#endif
+
+#ifdef QT_LARGEFILE_SUPPORT
+#define QT_STATBUF struct _stati64 // non-ANSI defs
+#define QT_STATBUF4TSTAT struct _stati64 // non-ANSI defs
+#define QT_STAT ::_stati64
+#define QT_FSTAT ::_fstati64
+#else
+#define QT_STATBUF struct _stat // non-ANSI defs
+#define QT_STATBUF4TSTAT struct _stat // non-ANSI defs
+#define QT_STAT ::_stat
+#define QT_FSTAT ::_fstat
+#endif
+#define QT_STAT_REG _S_IFREG
+#define QT_STAT_DIR _S_IFDIR
+#define QT_STAT_MASK _S_IFMT
+#if defined(_S_IFLNK)
+# define QT_STAT_LNK _S_IFLNK
+#endif
+#define QT_FILENO _fileno
+#define QT_OPEN ::_open
+#define QT_CLOSE ::_close
+#ifdef QT_LARGEFILE_SUPPORT
+#define QT_LSEEK ::_lseeki64
+#ifndef UNICODE
+#define QT_TSTAT ::_stati64
+#else
+#define QT_TSTAT ::_wstati64
+#endif
+#else
+#define QT_LSEEK ::_lseek
+#ifndef UNICODE
+#define QT_TSTAT ::_stat
+#else
+#define QT_TSTAT ::_wstat
+#endif
+#endif
+#define QT_READ ::_read
+#define QT_WRITE ::_write
+#define QT_ACCESS ::_access
+#define QT_GETCWD ::_getcwd
+#define QT_CHDIR ::_chdir
+#define QT_MKDIR ::_mkdir
+#define QT_RMDIR ::_rmdir
+#define QT_OPEN_LARGEFILE 0
+#define QT_OPEN_RDONLY _O_RDONLY
+#define QT_OPEN_WRONLY _O_WRONLY
+#define QT_OPEN_RDWR _O_RDWR
+#define QT_OPEN_CREAT _O_CREAT
+#define QT_OPEN_TRUNC _O_TRUNC
+#define QT_OPEN_APPEND _O_APPEND
+#if defined(O_TEXT)
+# define QT_OPEN_TEXT _O_TEXT
+# define QT_OPEN_BINARY _O_BINARY
+#endif
+
+#include "../common/c89/qplatformdefs.h"
+
+#ifdef QT_LARGEFILE_SUPPORT
+#undef QT_FSEEK
+#undef QT_FTELL
+#undef QT_OFF_T
+
+#define QT_FSEEK ::fseeko64
+#define QT_FTELL ::ftello64
+#define QT_OFF_T off64_t
+#endif
+
+#define QT_SIGNAL_ARGS int
+
+#define QT_VSNPRINTF ::_vsnprintf
+#define QT_SNPRINTF ::_snprintf
+
+# define F_OK 0
+# define X_OK 1
+# define W_OK 2
+# define R_OK 4
+
+
+#endif // QPLATFORMDEFS_H