main/py-docutils: make sure that subpackages' deps are built first

We need to make sure that the py-pillow and py-roman packages are built
before py-docutils. Do so by adding those to makedepends.

main/py-docutils/APKBUILD

@@ -3,13 +3,15 @@
 pkgname=py-docutils
 _pkgname=docutils
 pkgver=0.14
-pkgrel=0
+pkgrel=1
 pkgdesc="Documentation Utilities for Python"
 url="http://docutils.sourceforge.net/"
 arch="noarch"
 license="Public-Domain"
 depends="py3-${pkgname#py-}"
-makedepends="python2-dev python3-dev py-setuptools"
+_py2deps="py2-pillow py2-roman"
+_py3deps="py3-pillow py3-roman"
+makedepends="python2-dev python3-dev py-setuptools $_py2deps $_py3deps"
 subpackages="py2-${pkgname#py-}:_py2 py3-${pkgname#py-}:_py3 $pkgname-doc::noarch"
 source="https://downloads.sourceforge.net/$_pkgname/$_pkgname-$pkgver.tar.gz"
 builddir="$srcdir/$_pkgname-$pkgver"