diff --git a/angleproject/mingw-w64/PKGBUILD b/angleproject/mingw-w64/PKGBUILD
index f2184ac4..a24a1c20 100644
--- a/angleproject/mingw-w64/PKGBUILD
+++ b/angleproject/mingw-w64/PKGBUILD
@@ -9,7 +9,7 @@
 
 pkgname=mingw-w64-angleproject
 pkgver=2.1.r5707.5858f7e
-pkgrel=1
+pkgrel=2
 pkgdesc='ANGLE project (mingw-w64)'
 arch=('any')
 url='https://chromium.googlesource.com/angle/angle/+/master/README.md'
@@ -23,14 +23,16 @@ source=('angleproject::git+https://chromium.googlesource.com/angle/angle#commit=
         'libEGL_mingw32.def'
         'libGLESv2_mingw32.def'
         'entry_points_shader.cpp'
-        'provide_mbstowcs_s_for_xp.patch')
+        'provide_mbstowcs_s_for_xp.patch'
+        'fix-compatibility-with-qtopengl-and-qtwebkit.patch')
 sha256sums=('SKIP'
             'SKIP'
             '895c62846e6784dcc33171523a452cb474010d3fc9e7c351c27b8add4e9930ab'
             'fb04f30b904760d32c4c0b733d0a0b44359855db1fde9e7f5ca7d0b8b1be3e56'
             '3186d913a5fb483d2ae568068453e494d52df8f3f23f09d16afbbf916a63e4a4'
             'ad347c9732f8897497aa51b8969a0e01cd8cd4ebb9a0e873a2ff47c210f1d46c'
-            '57b16254c23dbd312dbbe0495a177690809b916c2f3d8b3bbf2dd405274d518c')
+            '57b16254c23dbd312dbbe0495a177690809b916c2f3d8b3bbf2dd405274d518c'
+            '5e4ca559a0d9efb00cbe097c8ae0102bb3132a78e68d590a5826ff86f2a6ccf2')
 _architectures="i686-w64-mingw32 x86_64-w64-mingw32"
 
 #pkgver() {
@@ -65,6 +67,10 @@ prepare() {
   # provide own implementation of mbstowcs_s for Windows XP support
   patch -p1 -i "${srcdir}/provide_mbstowcs_s_for_xp.patch"
 
+  # Fixes definition of GLsizeiptr and GLintptr to match that used by
+  # qopenglext.h in qt5-base. Fixes build of qt5-base-dynamic and qt5-webkit.
+  patch -p1 -i "${srcdir}/fix-compatibility-with-qtopengl-and-qtwebkit.patch"
+
   # executing .bat scripts on Linux is a no-go so make this a no-op
   echo "" > src/copy_compiler_dll.bat
   chmod +x src/copy_compiler_dll.bat
diff --git a/angleproject/mingw-w64/fix-compatibility-with-qtopengl-and-qtwebkit.patch b/angleproject/mingw-w64/fix-compatibility-with-qtopengl-and-qtwebkit.patch
new file mode 100644
index 00000000..30b1134d
--- /dev/null
+++ b/angleproject/mingw-w64/fix-compatibility-with-qtopengl-and-qtwebkit.patch
@@ -0,0 +1,30 @@
+diff -Naur angleproject.orig/include/KHR/khrplatform.h angleproject/include/KHR/khrplatform.h
+--- angleproject.orig/include/KHR/khrplatform.h	2016-10-26 16:15:14.000000000 -0500
++++ angleproject/include/KHR/khrplatform.h	2016-11-02 17:02:26.685185043 -0500
+@@ -228,17 +228,22 @@
+  * to be the only LLP64 architecture in current use.
+  */
+ #ifdef _WIN64
+-typedef signed   long long int khronos_intptr_t;
++//typedef signed   long long int khronos_intptr_t;
+ typedef unsigned long long int khronos_uintptr_t;
+-typedef signed   long long int khronos_ssize_t;
++//typedef signed   long long int khronos_ssize_t;
+ typedef unsigned long long int khronos_usize_t;
+ #else
+-typedef signed   long  int     khronos_intptr_t;
++//typedef signed   long  int     khronos_intptr_t;
+ typedef unsigned long  int     khronos_uintptr_t;
+-typedef signed   long  int     khronos_ssize_t;
++//typedef signed   long  int     khronos_ssize_t;
+ typedef unsigned long  int     khronos_usize_t;
+ #endif
+ 
++// Make this compatible with QTOpenGL and QtWebkit.
++// It seems that ptrdiff_t is the right size on WIN32 and WIN64.
++typedef ptrdiff_t khronos_intptr_t;
++typedef ptrdiff_t khronos_ssize_t;
++
+ #if KHRONOS_SUPPORT_FLOAT
+ /*
+  * Float type
diff --git a/qt5-multimedia/mingw-w64/0002-Fix-build-wtih-angle-enabled.patch b/qt5-multimedia/mingw-w64/0002-Fix-build-wtih-angle-enabled.patch
new file mode 100644
index 00000000..2f5d1efb
--- /dev/null
+++ b/qt5-multimedia/mingw-w64/0002-Fix-build-wtih-angle-enabled.patch
@@ -0,0 +1,16 @@
+diff -Naur qtmultimedia-opensource-src-5.7.0.orig/src/plugins/common/evr/evrd3dpresentengine.cpp qtmultimedia-opensource-src-5.7.0/src/plugins/common/evr/evrd3dpresentengine.cpp
+--- qtmultimedia-opensource-src-5.7.0.orig/src/plugins/common/evr/evrd3dpresentengine.cpp	2016-06-08 06:38:56.000000000 -0500
++++ qtmultimedia-opensource-src-5.7.0/src/plugins/common/evr/evrd3dpresentengine.cpp	2016-11-03 14:07:13.172478447 -0500
+@@ -49,9 +49,9 @@
+ #include <private/qmediaopenglhelper_p.h>
+ 
+ #ifdef MAYBE_ANGLE
+-# include <qtgui/qguiapplication.h>
+-# include <qpa/qplatformnativeinterface.h>
+-# include <qopenglfunctions.h>
++# include <QtGui/qguiapplication.h>
++# include <QtGui/qpa/qplatformnativeinterface.h>
++# include <QtGui/qopenglfunctions.h>
+ # include <EGL/eglext.h>
+ #endif
+ 
diff --git a/qt5-multimedia/mingw-w64/PKGBUILD b/qt5-multimedia/mingw-w64/PKGBUILD
index 9d4a216a..b8d2c8ce 100644
--- a/qt5-multimedia/mingw-w64/PKGBUILD
+++ b/qt5-multimedia/mingw-w64/PKGBUILD
@@ -11,7 +11,7 @@
 _qt_module=qtmultimedia
 pkgname=mingw-w64-qt5-multimedia
 pkgver=5.7.0
-pkgrel=3
+pkgrel=4
 arch=('any')
 pkgdesc='Classes for audio, video, radio and camera functionality (mingw-w64)'
 depends=('mingw-w64-qt5-base' 'mingw-w64-qt5-declarative')
@@ -22,9 +22,11 @@ license=('GPL3' 'LGPL' 'FDL' 'custom')
 url='https://www.qt.io/'
 _pkgfqn="${_qt_module}-opensource-src-${pkgver}"
 source=("https://download.qt.io/official_releases/qt/${pkgver:0:3}/${pkgver}/submodules/${_pkgfqn}.tar.xz"
-        '0001-Recorder-includes-to-prevent-conflict-with-vsnprintf.patch')
+        '0001-Recorder-includes-to-prevent-conflict-with-vsnprintf.patch'
+        '0002-Fix-build-wtih-angle-enabled.patch')
 md5sums=('44c1b9a1dfb0e8b13f2d9571829500ee'
-         '530551aefa1310f6ff740663b84751cd')
+         '530551aefa1310f6ff740663b84751cd'
+         'e4b435f51063d8d3868efb8224c89ff8')
 
 _architectures='i686-w64-mingw32 x86_64-w64-mingw32'
 [[ $NO_STATIC_LIBS ]] || \