--- configure_org	2021-04-12 11:04:34.351874339 +0900
+++ configure	2021-04-12 11:05:04.158161350 +0900
@@ -4782,13 +4782,30 @@
 
 
 
-CXX_PROG_NAME=`basename $CXX`
+_CXX_PROG_NAME=`echo $CXX | sed 's/ccache//g' | awk '{print $1}'`
+CXX_PROG_NAME=`basename $_CXX_PROG_NAME`
 case $host in
   powerpc*-*-*)
     case "$CXX_PROG_NAME" in
       xlC*)
         REQ_CXXFLAGS="$REQ_CXXFLAGS -qstrict"
       ;;
+      g++*)
+        REQ_CXXFLAGS="$REQ_CXXFLAGS -ffp-contract=off" #-fno-tree-pre in debian #935289, 
+      ;;
+      c++*)
+        REQ_CXXFLAGS="$REQ_CXXFLAGS -ffp-contract=off" #-fno-tree-pre in debian #935289, 
+      ;;
+    esac
+  ;;
+  aarch64*-*-*)
+    case "$CXX_PROG_NAME" in
+      g++*)
+        REQ_CXXFLAGS="$REQ_CXXFLAGS -mabi=lp64"
+      ;;
+      c++*)
+        REQ_CXXFLAGS="$REQ_CXXFLAGS -mabi=lp64"
+      ;;
     esac
   ;;
   i?86-*-* | k?*-*-* | athlon-*-* | ia64-*-* | x86_64-*-*)
