Build machinery cleanup.

	* configure.ac (--enable-as-accelerator-for): Don't set
	ENABLE_AS_ACCELERATOR_FOR.  Update all users.
	* configure: Regenerate.

From-SVN: r218744

ChangeLog

+2014-12-15  Thomas Schwinge  <thomas@codesourcery.com>
+
+	* configure.ac (--enable-as-accelerator-for): Don't set
+	ENABLE_AS_ACCELERATOR_FOR.  Update all users.
+	* configure: Regenerate.
+
 2014-12-13  Jakub Jelinek  <jakub@redhat.com>
 
 	PR bootstrap/64023

configure

@@ -2893,9 +2893,7 @@ esac
 
 # Check whether --enable-as-accelerator-for was given.
 if test "${enable_as_accelerator_for+set}" = set; then :
-  enableval=$enable_as_accelerator_for; ENABLE_AS_ACCELERATOR_FOR=$enableval
-else
-  ENABLE_AS_ACCELERATOR_FOR=no
+  enableval=$enable_as_accelerator_for;
 fi
 
 
@@ -3094,7 +3092,7 @@ if test "${enable_liboffloadmic+set}" = set; then :
     as_fn_error "--enable-liboffloadmic=no/host/target" "$LINENO" 5 ;;
 esac
 else
-  if test "${ENABLE_AS_ACCELERATOR_FOR}" != "no"; then
+  if test x"$enable_as_accelerator_for" != x; then
   case "${target}" in
     *-intelmic-* | *-intelmicemul-*)
       enable_liboffloadmic=target

configure.ac

@@ -289,9 +289,7 @@ esac
 AC_ARG_ENABLE(as-accelerator-for,
 [AS_HELP_STRING([--enable-as-accelerator-for=ARG],
 		[build as offload target compiler.
-		Specify offload host triple by ARG])],
-ENABLE_AS_ACCELERATOR_FOR=$enableval,
-ENABLE_AS_ACCELERATOR_FOR=no)
+		Specify offload host triple by ARG])])
 
 AC_ARG_ENABLE(offload-targets,
 [AS_HELP_STRING([--enable-offload-targets=LIST],
@@ -470,7 +468,7 @@ AC_HELP_STRING([[--enable-liboffloadmic[=ARG]]],
   *)
     AC_MSG_ERROR([--enable-liboffloadmic=no/host/target]) ;;
 esac],
-[if test "${ENABLE_AS_ACCELERATOR_FOR}" != "no"; then
+[if test x"$enable_as_accelerator_for" != x; then
   case "${target}" in
     *-intelmic-* | *-intelmicemul-*)
       enable_liboffloadmic=target