bc: Fix format

bc/PKGBUILD

@@ -13,22 +13,24 @@ source=(ftp://ftp.gnu.org/gnu/${pkgname}/${pkgname}-${pkgver}.tar.gz)
 md5sums=('d44b5dddebd8a7a7309aea6c36fda117')
 
 build () {
-    cd "${pkgname}-${pkgver}"
-    
-    ./configure --prefix=/usr \
-                --build=${CHOST} \
-                --host=${CHOST} \
-                --with-readline
+  [ -d ${srcdir}/build-${CHOST} ] && rm -rf ${srcdir}/build-${CHOST}
+  mkdir ${srcdir}/build-${CHOST} && cd ${srcdir}/build-${CHOST}
+  
+  ../${pkgname}-${pkgver}/configure \
+    --prefix=/usr \
+    --build=${CHOST} \
+    --host=${CHOST} \
+    --with-readline
 
-    make
+  make
 }
 
 check () {
-    cd "${pkgname}-${pkgver}"
-    echo "quit" | ./bc/bc -l Test/checklib.b # 10 failures
+  cd build-${CHOST}
+  echo "quit" | ./bc/bc -l Test/checklib.b # 10 failures
 }
 
 package () {
-    cd "${pkgname}-${pkgver}"
-    make prefix="${pkgdir}/usr" install
+  cd build-${CHOST}
+  make prefix="${pkgdir}/usr" install
 }