PATCH: --with-abi=x32 without --with-multilib-list doesn't work

[H.J. Lu]

Hi,

We should enable x32 run-time library if --with-abi={x32|mx32} is used
to configure GCC i[34567]86-*-* and x86_64-*-*.  Tested on Linux/x86-64.
OK for trunk?

Thanks.


H.J.
---
2012-06-04  H.J. Lu  <hongjiu...@intel.com>

        PR target/53575
        * config.gcc: Enable x32 run-time library if --with-abi={x32|mx32}
        is used for i[34567]86-*-* and x86_64-*-*.

diff --git a/gcc/config.gcc b/gcc/config.gcc
index 61adc89..3f66bd2 100644
--- a/gcc/config.gcc
+++ b/gcc/config.gcc
@@ -1233,7 +1233,14 @@ i[34567]86-*-linux* | i[34567]86-*-kfreebsd*-gnu | 
i[34567]86-*-knetbsd*-gnu | i
                        tmake_file="${tmake_file} i386/t-linux64"
                        x86_multilibs="${with_multilib_list}"
                        if test "$x86_multilibs" = "default"; then
-                               x86_multilibs="m64,m32"
+                               case ${with_abi} in
+                               x32 | mx32)
+                                       x86_multilibs="m64,m32,mx32"
+                                       ;;
+                               *)
+                                       x86_multilibs="m64,m32"
+                                       ;;
+                               esac
                        fi
                        x86_multilibs=`echo $x86_multilibs | sed -e 's/,/ /g'`
                        for x86_multilib in ${x86_multilibs}; do
@@ -1299,7 +1306,14 @@ x86_64-*-linux* | x86_64-*-kfreebsd*-gnu | 
x86_64-*-knetbsd*-gnu)
        tmake_file="${tmake_file} i386/t-linux64"
        x86_multilibs="${with_multilib_list}"
        if test "$x86_multilibs" = "default"; then
-               x86_multilibs="m64,m32"
+               case ${with_abi} in
+               x32 | mx32)
+                       x86_multilibs="m64,m32,mx32"
+                       ;;
+               *)
+                       x86_multilibs="m64,m32"
+                       ;;
+               esac
        fi
        x86_multilibs=`echo $x86_multilibs | sed -e 's/,/ /g'`
        for x86_multilib in ${x86_multilibs}; do