diff --git a/config/dfp.m4 b/config/dfp.m4
index 5b6a3f9d11424b6fd0736738eebd50fba925d509..d1d151b2da70ad337bf79640056370155ca3fe86 100644
--- a/config/dfp.m4
+++ b/config/dfp.m4
@@ -38,6 +38,7 @@ Valid choices are 'yes', 'bid', 'dpd', and 'no'.]) ;;
 ],
 [
   case $1 in
+    aarch64* | \
     powerpc*-*-linux* | i?86*-*-linux* | x86_64*-*-linux* | s390*-*-linux* | \
     i?86*-*-elfiamcu | i?86*-*-gnu* | x86_64*-*-gnu* | \
     i?86*-*-mingw* | x86_64*-*-mingw* | \
@@ -55,7 +56,7 @@ Valid choices are 'yes', 'bid', 'dpd', and 'no'.]) ;;
 case x$enable_decimal_float in
   xyes)
     case $1 in
-      i?86*-*-* | x86_64*-*-*)
+      aarch64* | i?86*-*-* | x86_64*-*-*)
 	enable_decimal_float=bid
 	;;
       *)
diff --git a/gcc/configure b/gcc/configure
index 5ce0557719a9fe0acf9a0f0ffaf949e9eeba0eb1..37e0dd5e41438b4fa944d3877b4d560a063295ac 100755
--- a/gcc/configure
+++ b/gcc/configure
@@ -7896,6 +7896,7 @@ Valid choices are 'yes', 'bid', 'dpd', and 'no'." "$LINENO" 5 ;;
 else
 
   case $target in
+    aarch64* | \
     powerpc*-*-linux* | i?86*-*-linux* | x86_64*-*-linux* | s390*-*-linux* | \
     i?86*-*-elfiamcu | i?86*-*-gnu* | x86_64*-*-gnu* | \
     i?86*-*-mingw* | x86_64*-*-mingw* | \
@@ -7916,7 +7917,7 @@ fi
 case x$enable_decimal_float in
   xyes)
     case $target in
-      i?86*-*-* | x86_64*-*-*)
+      aarch64* | i?86*-*-* | x86_64*-*-*)
 	enable_decimal_float=bid
 	;;
       *)
diff --git a/libdecnumber/configure b/libdecnumber/configure
index da5302f9315e55b2c82b514d8a0e8b3881e75034..fb6db05565a0da9750da2eebd4e9382713463366 100755
--- a/libdecnumber/configure
+++ b/libdecnumber/configure
@@ -4903,6 +4903,7 @@ Valid choices are 'yes', 'bid', 'dpd', and 'no'." "$LINENO" 5 ;;
 else
 
   case $target in
+    aarch64* | \
     powerpc*-*-linux* | i?86*-*-linux* | x86_64*-*-linux* | s390*-*-linux* | \
     i?86*-*-elfiamcu | i?86*-*-gnu* | x86_64*-*-gnu* | \
     i?86*-*-mingw* | x86_64*-*-mingw* | \
@@ -4923,7 +4924,7 @@ fi
 case x$enable_decimal_float in
   xyes)
     case $target in
-      i?86*-*-* | x86_64*-*-*)
+      aarch64* | i?86*-*-* | x86_64*-*-*)
 	enable_decimal_float=bid
 	;;
       *)
diff --git a/libgcc/configure b/libgcc/configure
index 1f9b2ac578be6b406bb7b2822b1960b571e870a6..61f3ace2891c5d753aa6fbed4317552847c20a87 100755
--- a/libgcc/configure
+++ b/libgcc/configure
@@ -4771,6 +4771,7 @@ Valid choices are 'yes', 'bid', 'dpd', and 'no'." "$LINENO" 5 ;;
 else
 
   case $host in
+    aarch64* | \
     powerpc*-*-linux* | i?86*-*-linux* | x86_64*-*-linux* | s390*-*-linux* | \
     i?86*-*-elfiamcu | i?86*-*-gnu* | x86_64*-*-gnu* | \
     i?86*-*-mingw* | x86_64*-*-mingw* | \
@@ -4791,7 +4792,7 @@ fi
 case x$enable_decimal_float in
   xyes)
     case $host in
-      i?86*-*-* | x86_64*-*-*)
+      aarch64* | i?86*-*-* | x86_64*-*-*)
 	enable_decimal_float=bid
 	;;
       *)