diff --git a/develop/iasl/iasl.conf b/develop/iasl/iasl.conf
index 6373fa974..b3e7282f2 100644
--- a/develop/iasl/iasl.conf
+++ b/develop/iasl/iasl.conf
@@ -12,5 +12,19 @@
 # GNU General Public License can be found in the file COPYING.
 # --- SDE-COPYRIGHT-NOTE-END ---
 
+hook_add preconf 7 "find . -name 'Make*' | xargs sed -i -e 's/-Werror//g' -e 's/remove-destination//'"
+
+BITSFLAG_ARCH=$arch
+case "$BITSFLAG_ARCH" in
+	x86)
+		BITSFLAG_ARCH="-m32" ;;
+	x86-64)
+		BITSFLAG_ARCH="-m64" ;;
+	*)
+		BITSFLAG_ARCH="";;
+esac
+
+var_append makeopt ' ' "BITSFLAG=$BITSFLAG_ARCH"
+
 srcdir="acpica-unix-$ver/generate/unix/"
 var_append makeinstopt ' ' "DESTDIR=$root/$prefix"
diff --git a/develop/iasl/iasl.desc b/develop/iasl/iasl.desc
index 63848d743..5190f8c5a 100644
--- a/develop/iasl/iasl.desc
+++ b/develop/iasl/iasl.desc
@@ -29,7 +29,7 @@
 
 [L] Free-to-use
 [S] Stable
-[V] 20141107
+[V] 20140325
 [P] X ??---5---9 179.000
 
-[D] 4293746238 acpica-unix-20141107.tar.gz https://acpica.org/sites/acpica/files/
+[D] 3461634234 acpica-unix-20140325.tar.gz https://acpica.org/sites/acpica/files/