add qapplication patch

.SRCINFO

@@ -1,7 +1,7 @@
 pkgbase = ignition-gui
 	pkgdesc = Builds on top of Qt to provide widgets which are useful when developing robotics applications, such as a 3D view, plots, dashboard, etc, and can be used together in a convenient unified interface.
 	pkgver = 4.1.0
-	pkgrel = 3
+	pkgrel = 4
 	url = https://ignitionrobotics.org/libs/gui
 	arch = x86_64
 	license = Apache
@@ -17,7 +17,9 @@ pkgbase = ignition-gui
 	depends = ignition-msgs
 	depends = ignition-tools
 	source = ignition-gui-4.1.0.tar.gz::https://github.com/ignitionrobotics/ign-gui/archive/ignition-gui4_4.1.0.tar.gz
+	source = qapplication.patch::https://patch-diff.githubusercontent.com/raw/ignitionrobotics/ign-gui/pull/165.patch
 	sha256sums = 9811710faa0ff07c134f07f82cbc0020dcc44c62c4feb087250e25bece252a7b
+	sha256sums = SKIP
 
 pkgname = ignition-gui
 

PKGBUILD

@@ -2,7 +2,7 @@
 
 pkgname=ignition-gui
 pkgver=4.1.0
-pkgrel=3
+pkgrel=4
 pkgdesc="Builds on top of Qt to provide widgets which are useful when developing
 robotics applications, such as a 3D view, plots, dashboard, etc, and can be used
 together in a convenient unified interface."
@@ -22,11 +22,18 @@ depends=(
 	ignition-tools
 )
 makedepends=('cmake')
-source=("${pkgname}-${pkgver}.tar.gz::https://github.com/ignitionrobotics/ign-gui/archive/${pkgname}4_${pkgver}.tar.gz")
-sha256sums=('9811710faa0ff07c134f07f82cbc0020dcc44c62c4feb087250e25bece252a7b')
+source=("${pkgname}-${pkgver}.tar.gz::https://github.com/ignitionrobotics/ign-gui/archive/${pkgname}4_${pkgver}.tar.gz"
+        "qapplication.patch::https://patch-diff.githubusercontent.com/raw/ignitionrobotics/ign-gui/pull/165.patch")
+sha256sums=('9811710faa0ff07c134f07f82cbc0020dcc44c62c4feb087250e25bece252a7b'
+            'SKIP')
 
 _dir="ign-gui-${pkgname}4_${pkgver}"
 
+prepare() {
+  cd "$srcdir/$_dir"
+  patch --forward --strip=1 --input="${srcdir}/qapplication.patch"
+}
+
 build() {
   cd "$srcdir/$_dir"