diff --git a/scripts/zimport.sh b/scripts/zimport.sh
index d702be579d..3488460eea 100755
--- a/scripts/zimport.sh
+++ b/scripts/zimport.sh
@@ -73,9 +73,13 @@ COLOR=1
 REPO="https://github.com/zfsonlinux"
 IMAGES_DIR="$SCRIPTDIR/zfs-images/"
 IMAGES_TAR="https://github.com/zfsonlinux/zfs-images/tarball/master"
-CPUS=`grep -c ^processor /proc/cpuinfo`
 ERROR=0
 
+CONFIG_LOG="configure.log"
+CONFIG_OPTIONS=${CONFIG_OPTIONS:-""}
+MAKE_LOG="make.log"
+MAKE_OPTIONS=${MAKE_OPTIONS:-"-s -j$(nproc)"}
+
 usage() {
 cat << EOF
 USAGE:
@@ -405,9 +409,9 @@ for TAG in $SRC_TAGS; do
 	else
 		cd $SPL_DIR
 		make distclean &>/dev/null
-		sh ./autogen.sh &>/dev/null || fail 1
-		./configure &>/dev/null || fail 2
-		make -s -j$CPUS &>/dev/null || fail 3
+		./autogen.sh >>$CONFIG_LOG 2>&1 || fail 1
+		./configure $CONFIG_OPTIONS >>$CONFIG_LOG 2>&1 || fail 2
+		make ${MAKE_OPTIONS} >>$MAKE_LOG 2>&1 || fail 3
 		pass_nonewline
 	fi
 done
@@ -425,9 +429,10 @@ for TAG in $SRC_TAGS; do
 	else
 		cd $ZFS_DIR
 		make distclean &>/dev/null
-		sh ./autogen.sh &>/dev/null || fail 1
-		./configure --with-spl=$SPL_DIR &>/dev/null || fail 2
-		make -s -j$CPUS &>/dev/null || fail 3
+		./autogen.sh >>$CONFIG_LOG 2>&1 || fail 1
+		./configure --with-spl=$SPL_DIR $CONFIG_OPTIONS \
+                    >>$CONFIG_LOG 2>&1 || fail 2
+		make ${MAKE_OPTIONS} >>$MAKE_LOG 2>&1 || fail 3
 		pass_nonewline
 	fi
 done