diff --git a/config b/config
index c2680f2..3f533a2 100644
--- a/config
+++ b/config
@@ -25,16 +25,16 @@
 MAKEOPTS="-j$(( $(grep -c 'processor' /proc/cpuinfo) + 1 ))"
 
 ## devuan packaged toolchain
-#compiler="arm-none-eabi-"
+devuantc="arm-none-eabi-"
 
 ## linaro armhf toolchain
-#compiler="arm-linux-gnueabihf-"
+armhftc="arm-linux-gnueabihf-"
 
 ## linaro armel toolchain
-#compiler="arm-linux-gnueabi-"
+armeltc="arm-linux-gnueabi-"
 
 ## linaro arm64 toolchain
-#compiler="aarch64-linux-gnu-"
+arm64tc="aarch64-linux-gnu-"
 
 export PATH="$R/gcc/linaro-armhf/bin:$R/gcc/linaro-armel/bin:$R/gcc/linaro-arm64/bin"
 export PATH="$PATH:/usr/sbin:/sbin:/usr/bin:/bin"
diff --git a/sdk b/sdk
index 6d52748..4f1c4c9 100755
--- a/sdk
+++ b/sdk
@@ -102,7 +102,7 @@ load() {
 
 	[[ -f $boardlib ]] || { die "no valid boards specified"; exit 1 }
 	[[ -f $oslib    ]] || { die "no valid distro specified"; exit 1 }
-	[[ -f $blendlib ]] || { warn "no valid blend specified" }
+	[[ -f $blendlib ]] || { act "no blend specified" }
 
 	source $boardlib ## XXX: remove this line
 	source $oslib
@@ -118,10 +118,16 @@ load() {
 	strapdir="$workdir/bootstrap"
 	mkdir -p $strapdir
 
+	case "$arch" in
+		armhf) export compiler="$armhftc";;
+		armel) export compiler="$armeltc";;
+		arm64) export compiler="$arm64tc";;
+		*) die "invalid architecture in board script"; exit 1;;
+	esac
+	[[ -n "$USEDEVUANTC" ]] && export compiler="$devuantc"
+
 	export LANG=C
 	export LC_ALL=C
-	export ARCH=arm
-	export CROSS_COMPILE="$compiler"
 
 	source $R/lib/zuper/zuper.init
 }