update all the packages, remove some unneeded ones

src/mingw-w64-headers/PKGBUILD

@@ -1,13 +1,12 @@
-# $Id: PKGBUILD 266002 2017-11-09 13:16:03Z spupykin $
-# Maintainer: Sergej Pupykin <pupykin.s+arch@gmail.com>
-# Maintainer: rubenvb vanboxem <dottie> ruben <attie> gmail <dottie> com
+# Contributor: Sergej Pupykin <pupykin.s+arch@gmail.com>
+# Contributor: rubenvb vanboxem <dottie> ruben <attie> gmail <dottie> com
 
 _targets="i686-w64-mingw32 x86_64-w64-mingw32"
 
 pkgname='mingw-w64-headers'
 pkgver=5.0.3
 _pkgver=${pkgver/rc/-rc}
-pkgrel=1
+pkgrel=2
 pkgdesc="MinGW-w64 headers for Windows"
 arch=('any')
 url="http://mingw-w64.sourceforge.net"
@@ -15,9 +14,18 @@ license=('custom')
 groups=('mingw-w64-toolchain' 'mingw-w64')
 options=('!strip' '!libtool' '!emptydirs')
 validpgpkeys=('CAF5641F74F7DFBA88AE205693BDB53CD4EBC740')
-source=(https://sourceforge.net/projects/mingw-w64/files/mingw-w64/mingw-w64-release/mingw-w64-v${_pkgver}.tar.bz2{,.sig})
+source=(https://sourceforge.net/projects/mingw-w64/files/mingw-w64/mingw-w64-release/mingw-w64-v${_pkgver}.tar.bz2{,.sig}
+        0001-intrin-impl.h-do-not-define-_xgetbv-for-GCC-8.patch)
 sha256sums=('2a601db99ef579b9be69c775218ad956a24a09d7dabc9ff6c5bd60da9ccc9cb4'
-            'SKIP')
+            'SKIP'
+            'be8aabf9c98026db998c97e7e14293d4a9db9a73587ab860e72d7a798b6ad16e')
+
+prepare() {
+  cd "$srcdir"/mingw-w64-v${_pkgver}
+
+  # https://sourceforge.net/p/mingw-w64/mailman/message/36200602/
+  patch -p1 -i "$srcdir"/0001-intrin-impl.h-do-not-define-_xgetbv-for-GCC-8.patch
+}
 
 build() {
   for _target in ${_targets}; do