emacs: update to 26.2, remove dbus, make imagemagick optional

Emacs does not support dbus on Windows.

mingw-w64-emacs/PKGBUILD

@@ -4,7 +4,7 @@
 _realname=emacs
 pkgbase=mingw-w64-${_realname}
 pkgname="${MINGW_PACKAGE_PREFIX}-${_realname}"
-pkgver=26.1
+pkgver=26.2
 pkgrel=1
 pkgdesc="The extensible, customizable, self-documenting, real-time display editor (mingw-w64)"
 url="https://www.gnu.org/software/${_realname}/"
@@ -13,26 +13,29 @@ arch=('any')
 depends=("${MINGW_PACKAGE_PREFIX}-ctags"
          "${MINGW_PACKAGE_PREFIX}-zlib"
          "${MINGW_PACKAGE_PREFIX}-xpm-nox"
-         "${MINGW_PACKAGE_PREFIX}-dbus"
          "${MINGW_PACKAGE_PREFIX}-gnutls"
-         "${MINGW_PACKAGE_PREFIX}-imagemagick"
          "${MINGW_PACKAGE_PREFIX}-libwinpthread")
 optdepends=("${MINGW_PACKAGE_PREFIX}-giflib"
             "${MINGW_PACKAGE_PREFIX}-libjpeg-turbo"
             "${MINGW_PACKAGE_PREFIX}-libpng"
             "${MINGW_PACKAGE_PREFIX}-librsvg"
             "${MINGW_PACKAGE_PREFIX}-libtiff"
+            "${MINGW_PACKAGE_PREFIX}-imagemagick"
             "${MINGW_PACKAGE_PREFIX}-libxml2")
 makedepends=("${MINGW_PACKAGE_PREFIX}-gcc"
              "${MINGW_PACKAGE_PREFIX}-pkg-config"
-             "patch")
+	     "make"
+             "autoconf"
+	     "texinfo"
+             "patch"
+	     "${optdepends[@]}")
 # Don't zip info files because the built-in info reader uses gzip to
 # decompress them. gzip is not available as a mingw binary.
 options=('strip' '!zipman')
 source=("https://ftp.gnu.org/gnu/${_realname}/${_realname}-${pkgver}.tar.xz"{,.sig}
         'image.c.diff'
         'lread.c.diff')
-sha256sums=('1cf4fc240cd77c25309d15e18593789c8dbfba5c2b44d8f77c886542300fd32c'
+sha256sums=('151ce69dbe5b809d4492ffae4a4b153b2778459de6deb26f35691e1281a9c58e'
             'SKIP'
             '4571d45ec26fd556e73a70bb0ab0a2a8fa1efc5e3b3c5b472ab68bb7dc9bf52c'
             '24b2201aa2e965c759cfc9539aa4b610d97f1d0240d9888e335da490b87b84b5')
@@ -53,6 +56,7 @@ build() {
     --prefix="${MINGW_PREFIX}" \
     --build="${MINGW_CHOST}" \
     --with-modules \
+    --without-dbus \
     --without-compress-install
 
   # --without-compress-install is needed because we don't have gzip in