--- a/configure.ac
+++ b/configure.ac
@@ -352,7 +352,7 @@ AC_PROG_EGREP
 dnl --check if popcnt instruction is available and desired
 AC_MSG_CHECKING(if popcnt instruction is available and requested)
 AC_RUN_IFELSE([AC_LANG_PROGRAM([],[[if (__builtin_cpu_supports("popcnt")) return 0; else return 1;]])],
-  popsup=1,popsup=0)
+  popsup=1,popsup=0,popsup=0)
 
 AS_IF([test "$allow_popcnt" -eq 1],
       [have_hwpopcnt=$popsup
@@ -457,7 +457,7 @@ echo MORECFLAGS="$MORECFLAGS"
 dnl --check if lzcnt instruction is available and requested
 AC_MSG_CHECKING(if lzcnt instruction is available and requested)
 AC_RUN_IFELSE([AC_LANG_PROGRAM([],[[if (__builtin_cpu_supports("bmi")) return 0; else return 1;]])],
-  lzsup=1,lzsup=0)
+  lzsup=1,lzsup=0,lzsup=0)
 AS_IF([test "$allow_clz" -eq 1],
       [have_hwlzcnt=$lzsup
 test -f /proc/cpuinfo && $EGREP -i "abm|bmi1" /proc/cpuinfo >/dev/null && have_hwlzcnt=1