Fixed BUILD scripts

- Removed extra set -x -v used for debugging
- Fixed that that gcc version tests works for gcc 7

BUILD/FINISH.sh

@@ -14,7 +14,7 @@
 # License along with this library; if not, write to the Free
 # Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
 # MA 02110-1301, USA
-set -x -v
+
 cflags="$c_warnings $extra_flags $EXTRA_FLAGS $EXTRA_CFLAGS"
 cxxflags="$cxx_warnings $base_cxxflags $extra_flags $EXTRA_FLAGS $EXTRA_CXXFLAGS"
 extra_configs="$extra_configs $local_infile_configs $EXTRA_CONFIGS"

BUILD/check-cpu

@@ -40,6 +40,12 @@ check_compiler_cpu_flags () {
     cc_major=$1
     cc_minor=$2
     cc_patch=$3
+    if test -z "$cc_minor"; then
+      cc_minor="0";
+    fi
+    if test -z "$cc_patch"; then
+      cc_minor="0";
+    fi
     cc_comp=`expr $cc_major '*' 100 '+' $cc_minor`
   fi