PATCH: Don't assume modern glibc for x86 Android targets

[H.J. Lu]

For i[34567]86-*-linux* and x86_64-*-linux* targets, config.gcc assumes
modern glibc and set default_gnu_indirect_function to yes.  That is wron
for i[34567]86-*-linux-android* and and x86_64-*-linux-android* targets.
This patch fixes it.  Tested on Linux/x86-64, Linux/ia32 and cross-teste
for i686-linux-android and x86_64-linux-android.  OK for trunk?

Thanks.


H.J.
----
2014-11-13  H.J. Lu  <hongjiu...@intel.com>

        * config.gcc (default_gnu_indirect_function): Don't assume
        modern glibc for i[34567]86-*-linux* and x86_64-*-linux* when
        targeting Android.

diff --git a/gcc/config.gcc b/gcc/config.gcc
index a6b37d8..3448048 100644
--- a/gcc/config.gcc
+++ b/gcc/config.gcc
@@ -1404,8 +1404,11 @@ i[34567]86-*-linux* | i[34567]86-*-kfreebsd*-gnu | 
i[34567]86-*-knetbsd*-gnu | i
        i[34567]86-*-linux*)
                tm_file="${tm_file} linux.h linux-android.h"
                extra_options="${extra_options} linux-android.opt"
-               # Assume modern glibc
-               default_gnu_indirect_function=yes
+               # Assume modern glibc unless we are targeting Android
+               case $target in
+               *-*-*android*) ;;
+               *) default_gnu_indirect_function=yes ;;
+               esac
                if test x$enable_targets = xall; then
                        tm_file="${tm_file} i386/x86-64.h 
i386/gnu-user-common.h i386/gnu-user64.h i386/linux-common.h i386/linux64.h"
                        tm_defines="${tm_defines} TARGET_BI_ARCH=1"
@@ -1467,8 +1470,11 @@ x86_64-*-linux* | x86_64-*-kfreebsd*-gnu | 
x86_64-*-knetbsd*-gnu)
        x86_64-*-linux*)
                tm_file="${tm_file} linux.h linux-android.h i386/linux-common.h 
i386/linux64.h"
                extra_options="${extra_options} linux-android.opt"
-               # Assume modern glibc
-               default_gnu_indirect_function=yes
+               # Assume modern glibc unless we are targeting Android
+               case $target in
+               *-*-*android*) ;;
+               *) default_gnu_indirect_function=yes ;;
+               esac
                ;;
        x86_64-*-kfreebsd*-gnu)
                tm_file="${tm_file} kfreebsd-gnu.h i386/kfreebsd-gnu64.h"