--- a/PKGBUILD	2012-06-24 10:43:23.000000000 -0400
+++ b/PKGBUILD	2012-06-24 10:36:24.607035017 -0400
@@ -20,17 +20,19 @@
 source=("http://downloads.sourceforge.net/${pkgname}/${pkgname}-${_pkgver}.tar.bz2")
 md5sums=('d2340718d05d69e7f2a7f0846471ee12')
 
+_builddir="$srcdir/build"
+
 build() {
-  cd "${srcdir}"
-  mkdir build
-  cd build
-  cmake ../${pkgname}-${_pkgver} \
+  [[ -e "$_builddir" ]] && rm -r "$_builddir"
+  mkdir "$_builddir"
+  cd "$_builddir"
+  CXXFLAGS="$CXXFLAGS -fpermissive" cmake "../${pkgname}-${_pkgver}" \
     -DCMAKE_BUILD_TYPE=Release \
     -DCMAKE_INSTALL_PREFIX=/usr
   make
 }
 
 package() {
-  cd "${srcdir}/build"
+  cd "$_builddir"
   make DESTDIR="${pkgdir}" install
 }