--- configure.orig	2016-01-07 05:45:47 UTC
+++ configure
@@ -2546,7 +2546,7 @@ ac_link='$CC -o conftest$ac_exeext $CFLA
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
 if test -n "$ac_tool_prefix"; then
   # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args.
-set dummy ${ac_tool_prefix}gcc; ac_word=$2
+set dummy ${ac_tool_prefix}$CXX; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
 if ${ac_cv_prog_CC+:} false; then :
@@ -3379,7 +3379,7 @@ ac_link='$CC -o conftest$ac_exeext $CFLA
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
 if test -n "$ac_tool_prefix"; then
   # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args.
-set dummy ${ac_tool_prefix}gcc; ac_word=$2
+set dummy ${ac_tool_prefix}$CXX; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
 if ${ac_cv_prog_CC+:} false; then :