title: exists in filesystem (owned by filesystem) in PKGBUILD for arch linux
body: <p>I am trying to build my own mariaDB arch linux package with PKGBUILD i have binries which are teady to be installed . I has bash script (arch linux PKGBUILD) which runs fime and creaes the pkg.tar file . When I try to install it with pacman I get this :-</p>
  
  <pre><code>%sudo pacman -U mariadb-bin-10.3.7-1-x86_64.pkg.tar                           :(
  loading packages...
  resolving dependencies...
  looking for conflicting packages...
  
  Packages (1) mariadb-bin-10.3.7-1
  
  Total Installed Size:  539.71 MiB
  
  :: Proceed with installation? [Y/n] y
  (1/1) checking keys in keyring                                         [########################################] 100%
  (1/1) checking package integrity                                       [########################################] 100%
  (1/1) loading package files                                            [########################################] 100%
  (1/1) checking for file conflicts                                      [########################################] 100%
  error: failed to commit transaction (conflicting files)
  mariadb-bin: /usr/lib64 exists in filesystem (owned by filesystem)
  mariadb-bin: /usr/sbin exists in filesystem (owned by filesystem)
  Errors occurred, no packages were upgraded.
  </code></pre>
  
  <p>here is my PKGBUILD file :-</p>
  
  <pre><code># This is an example PKGBUILD file. Use this as a start to creating your own,
  # and remove these comments. For more information, see 'man PKGBUILD'.
  # NOTE: Please fill out the license field for your package! If it is unknown,
  # then please put 'unknown'.
  
  # Maintainer: Your Name &lt;youremail@domain.com&gt;
  pkgname='mariadb-bin'
  pkgver=10.3.7
  pkgrel=1
  pkgdesc="MariaDB for arch linux"
  arch=('x86_64')
  url="http://mirror.truenetwork.ru/mariadb/"
  license=('GPL')
  groups=()
  depends=()
  makedepends=()
  checkdepends=()
  optdepends=()
  provides=("mariadb=${pkgver}")
  conflicts=('mariadb')
  replaces=()
  backup=('etc/mysql/my.cnf',
          'etc/mysql/wsrep.cnf')
  options=()
  install=mariadb-bin.install
  changelog=
  source=()
  noextract=()
  md5sums=()
  validpgpkeys=()
  
  prepare() {
      echo "I am prepare fn";
      pwd
  }
  
  
  build() {
      echo "I am buid fn ";
      pwd
  }
  
  check() {
      echo "I am check fn";
      pwd
  }
  
  package() {
      echo "I am package fn";
      cp ../usr ${pkgdir} -r
      cp ../etc ${pkgdir} -r
      pwd
      cd ${pkgdir}
      find ${pkgdir}/ -name *.so -exec chmod 777 {} \;
      chmod 755 ${pkgdir}/usr/bin/*
  }
  </code></pre>
  
  <p>what should I do ? I know this question suites more on arch forum but since we can ask about bash and shell scripting , So ..</p>