Fix bogus test syntax.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4550 c046a42c-6fe2-441c-8c8c-71466251a162

configure

@@ -1200,7 +1200,7 @@ case "$target_cpu" in
       echo "#define USE_KQEMU 1" >> $config_h
     fi
     gcc3minver=`$cc --version 2> /dev/null| fgrep "(GCC) 3." | awk '{ print $3 }' | cut -f2 -d.`
-    if test -n "$gcc3minver" -a $gcc3minver -gt 3
+    if test -n "$gcc3minver" && test $gcc3minver -gt 3
     then
       echo "HAVE_GT_GCC_3_3=true" >> $config_mak
     else