Revert "main/scons: upgrade to python3"

packages like serf fails to build with scons with python3. revert for
now, again...

This reverts commit f9a85640a0.

main/scons/APKBUILD

@@ -2,32 +2,30 @@
 # Maintainer: William Pitcock <nenolod@dereferenced.org>
 pkgname=scons
 pkgver=3.0.1
-pkgrel=1
+pkgrel=2
 pkgdesc="Software construction system"
 url="http://www.scons.org"
 arch="noarch"
 license="MIT"
-depends="python3"
-makedepends="python3-dev"
+# before upgrade to python3, make sure that packages like serf builds with scons with python3
+depends="python2"
+makedepends="python2-dev"
 source="http://downloads.sourceforge.net/$pkgname/$pkgname-$pkgver.tar.gz"
 builddir="$srcdir/$pkgname-$pkgver"
 
 build() {
 	cd "$builddir"
-	python3 setup.py build
-}
-
-check() {
-	cd "$builddir"
-	python3 setup.py check
+	python2 setup.py build
 }
 
 package() {
 	cd "$builddir"
-	python3 setup.py install --prefix=/usr --root="$pkgdir"
+	python2 setup.py install --prefix=/usr --root="$pkgdir"
+}
 
-	# set env to python3
-	sed -i 's|/usr/bin/env python|/usr/bin/python3|' "$pkgdir"/usr/bin/*
+check() {
+	cd "$builddir"
+	python2 setup.py check
 }
 
 sha512sums="b7be40ba507366cc678f31b910553cadaf59781c3a91833a34acbd29d9cad0cda38f6753034bf92c3af55d1e0c2f72aba5d81f1ec67205d0345b005d286f7084  scons-3.0.1.tar.gz"