Enable libsanitizer just on x86 linux for now

This patch builds libsanitizer only on x86_64 and i?86 linux targets
for now.  I guess The build can be enabled on other targets when they
are ready.

ChangeLog:

	* configure.ac: Enable libsanitizer just on x86 linux for now.
	* configure: Re-generate.

From-SVN: r193478

ChangeLog

+2012-11-13  Dodji Seketeli  <dodji@redhat.com>
+
+	* configure.ac: Enable libsanitizer just on x86 linux for now.
+	* configure: Re-generate.
+
 2012-11-13  David Edelsohn  <dje.gcc@gmail.com>
 
 	* configure.ac: Disable libsanitizer on AIX. Merge libquadmath

configure

@@ -3208,12 +3208,11 @@ case "${target}" in
     ;;
 esac
 
-# Disable libsanitizer for some systems.
+# Disable libsanitizer on all systems but x86 linux for now.
 case "${target}" in
-  cris-*-* | crisv32-*-* | mmix-*-*)
-    noconfigdirs="$noconfigdirs target-libsanitizer"
+  x86_64-*-linux-* | i?86-*-linux-*)
     ;;
-  powerpc-*-aix* | rs6000-*-aix*)
+  *)
     noconfigdirs="$noconfigdirs target-libsanitizer"
     ;;
 esac

configure.ac

@@ -550,12 +550,11 @@ case "${target}" in
     ;;
 esac
 
-# Disable libsanitizer for some systems.
+# Disable libsanitizer on all systems but x86 linux for now.
 case "${target}" in
-  cris-*-* | crisv32-*-* | mmix-*-*)
-    noconfigdirs="$noconfigdirs target-libsanitizer"
+  x86_64-*-linux-* | i?86-*-linux-*)
     ;;
-  powerpc-*-aix* | rs6000-*-aix*)
+  *)
     noconfigdirs="$noconfigdirs target-libsanitizer"
     ;;
 esac