adding aur/unison-beta as it seems to work with current ocaml

aur/unison-beta/PKGBUILD

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+#Contributor: Andreas Wagner <andreas dot wagner at em dot uni-frankfurt dot de>
+
+pkgname=unison-beta
+pkgver=2.45.4
+pkgrel=1
+pkgdesc="Unison is a file-synchronization tool. Beta Version"
+arch=(i686 x86_64)
+license=('GPL2')
+url="http://www.cis.upenn.edu/~bcpierce/unison"
+depends=('glibc')
+makedepends=('ocaml' 'lablgtk2' 'imagemagick')
+optdepends=('gtk2: graphical UI')
+source=(http://www.cis.upenn.edu/~bcpierce/unison/download/releases/unison-$pkgver/unison-$pkgver.tar.gz \
+        unison.desktop)
+conflicts=('unison')
+options=(!makeflags)
+install=unison.install
+
+build() {
+  cd $startdir/src/unison-$pkgver
+  CFLAGS=""
+  make clean
+  make mkProjectInfo
+  make UISTYLE=text DEBUGGING=false THREADS=true || return 1
+  mkdir -p $startdir/pkg/usr/bin 
+  install -Dm755 unison $startdir/pkg/usr/bin/unison
+## clean the builddir and rebuild with gtk support
+#  make clean
+#  make mkProjectInfo
+#  make UISTYLE=gtk DEBUGGING=false THREADS=true || return 1
+#  install -Dm755 unison $startdir/pkg/usr/bin/unison-gtk
+## clean the builddir and rebuild with gtk2 support
+  make clean
+  make mkProjectInfo
+  make UISTYLE=gtk2 DEBUGGING=false THREADS=true || return 1
+  install -Dm755 unison $startdir/pkg/usr/bin/unison-gtk2
+## install a .desktop file; create a compliant icon from ico file and install the png
+  install -Dm644 ../unison.desktop $startdir/pkg/usr/share/applications/unison.desktop
+  convert win32rc/U.ico unison.png
+  install -Dm644 unison-1.png $startdir/pkg/usr/share/pixmaps/unison.png
+## make symlink for .desktop file
+  cd $startdir/pkg//usr/bin
+  ln -s unison-gtk2 unison-x11
+}
+
+md5sums=('b345bff33a6fa21a9733904facd9fca6'
+         '2daecba7705455a8e4b769e48b059872')

aur/unison-beta/unison.desktop

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+[Desktop Entry]
+Encoding=UTF-8
+Name=unison
+Name[de]=unison
+Comment=File synchronisation tool for X11
+Comment[de]=Datei Abgleicher und Synchronisierer
+TryExec=unison-x11
+Exec=unison-x11
+Terminal=false
+Type=Application
+Categories=GTK;Application;Network;
+Icon=unison.png
+StartupNotify=true

aur/unison-beta/unison.install

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+# arg 1:  the new package version
+post_install() {
+  echo "NOTE:"
+  echo "  This build is without gtk1 frontend."
+  echo "  For gtk2 frontend please add 'gtk2' package."
+  echo "  Default X11 frontend is set to gtk2. "
+  echo ""
+}
+
+# arg 1:  the new package version
+# arg 2:  the old package version
+post_upgrade() {
+ post_install $1
+}
+
+# arg 1:  the old package version
+pre_remove() {
+  /bin/true
+}
+
+# arg 1:  the old package version
+post_remove() {
+  /bin/true
+}
+
+op=$1
+shift
+$op $*