--- PKGBUILD.old	2013-07-10 17:40:09.318696661 +0200
+++ PKGBUILD	2013-07-10 17:34:24.232010868 +0200
@@ -3,6 +3,7 @@
 # Contributor:  Gour <gour@mail.inet.hr>
 
 pkgname=emacs-muse
+_pkgname=muse
 pkgver=3.20
 pkgrel=3
 pkgdesc="Publishing environment for Emacs"
@@ -14,14 +15,20 @@
 source=(http://download.gna.org/muse-el/muse-$pkgver.tar.gz)
 md5sums=('aa43de43f4437e7979ffbb708180b2e9')
 
-build() {
-  cd $srcdir/muse-$pkgver
+prepare() {
+    cd "$srcdir/$_pkgname-$pkgver"
+    # python2 fix
+    sed -i 's_#!/usr/bin/env python_#!/usr/bin/env python2_' experimental/muse-mathml.el
+    cp Makefile.defs.default Makefile.defs
+    sed -i -e "s|\(PREFIX.*= \)/usr/local|\1/usr|" Makefile.defs
+}
 
-  # python2 fix
-  sed -i 's_#!/usr/bin/env python_#!/usr/bin/env python2_' experimental/muse-mathml.el
+build() {
+    cd "$srcdir/$_pkgname-$pkgver"
+    make
+}
 
-  cp Makefile.defs.default Makefile.defs
-  sed -i -e "s|\(PREFIX.*= \)/usr/local|\1/usr|" Makefile.defs
-  make
-  make DESTDIR=$pkgdir install
+package() {
+    cd "$srcdir/$_pkgname-$pkgver"
+    make DESTDIR="$pkgdir/" install
 }