gdb:

2008-04-23  Paolo Bonzini  <bonzini@gnu.org>

        * acinclude.m4: Add override.m4.
        * configure: Regenerate.

gdb/gdbserver:
2008-04-23  Paolo Bonzini  <bonzini@gnu.org>

        * acinclude.m4: Add override.m4.
        * configure: Regenerate.

gdb/testsuite:
2008-04-23  Paolo Bonzini  <bonzini@gnu.org>

        * aclocal.m4: Add override.m4.
        * configure: Regenerate.

9 files changed, 125 insertions, 329 deletions

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index dd1d158..6f426e0 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,8 @@
+2008-04-23  Paolo Bonzini  <bonzini@gnu.org>
+
+        * acinclude.m4: Add override.m4.
+        * configure: Regenerate.
+
 2008-04-22  Jan Kratochvil  <jan.kratochvil@redhat.com>
 
 	* ada-lang.c (get_selections): Variable PROMPT made non-const and
diff --git a/gdb/acinclude.m4 b/gdb/acinclude.m4
index 64bc192..eed597c 100644
--- a/gdb/acinclude.m4
+++ b/gdb/acinclude.m4
@@ -7,6 +7,9 @@ sinclude(../bfd/bfd.m4)
 dnl This gets the standard macros, like the TCL, TK, etc ones.
 sinclude(../config/acinclude.m4)
 
+dnl This gets autoconf bugfixes
+sinclude(../config/override.m4)
+
 dnl This gets GCC_HEADER_STDINT.
 sinclude(../config/stdint.m4)
 
diff --git a/gdb/configure b/gdb/configure
index 229515c..cf3d7b5 100755
--- a/gdb/configure
+++ b/gdb/configure
@@ -1293,13 +1293,22 @@ echo "$as_me: error: \`$ac_var' was not set in the previous run" >&2;}
     ,);;
     *)
       if test "x$ac_old_val" != "x$ac_new_val"; then
-	{ echo "$as_me:$LINENO: error: \`$ac_var' has changed since the previous run:" >&5
+        # differences in whitespace do not lead to failure.
+        ac_old_val_w=`echo x $ac_old_val`
+        ac_new_val_w=`echo x $ac_new_val`
+        if test "$ac_old_val_w" != "$ac_new_val_w"; then
+          { echo "$as_me:$LINENO: error: \`$ac_var' has changed since the previous run:" >&5
 echo "$as_me: error: \`$ac_var' has changed since the previous run:" >&2;}
-	{ echo "$as_me:$LINENO:   former value:  $ac_old_val" >&5
-echo "$as_me:   former value:  $ac_old_val" >&2;}
-	{ echo "$as_me:$LINENO:   current value: $ac_new_val" >&5
-echo "$as_me:   current value: $ac_new_val" >&2;}
-	ac_cache_corrupted=:
+          ac_cache_corrupted=:
+        else
+          { echo "$as_me:$LINENO: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&5
+echo "$as_me: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&2;}
+          eval $ac_var=\$ac_old_val
+        fi
+        { echo "$as_me:$LINENO:   former value:  \`$ac_old_val'" >&5
+echo "$as_me:   former value:  \`$ac_old_val'" >&2;}
+        { echo "$as_me:$LINENO:   current value: \`$ac_new_val'" >&5
+echo "$as_me:   current value: \`$ac_new_val'" >&2;}
       fi;;
   esac
   # Pass precious variables to config.status.
@@ -9872,283 +9881,6 @@ done
 fi
 
 
-# Link in zlib if we can.  This allows us to read compressed debug sections.
-echo "$as_me:$LINENO: checking for library containing zlibVersion" >&5
-echo $ECHO_N "checking for library containing zlibVersion... $ECHO_C" >&6
-if test "${ac_cv_search_zlibVersion+set}" = set; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
-else
-  ac_func_search_save_LIBS=$LIBS
-ac_cv_search_zlibVersion=no
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-
-/* Override any gcc2 internal prototype to avoid an error.  */
-#ifdef __cplusplus
-extern "C"
-#endif
-/* We use char because int might match the return type of a gcc2
-   builtin and then its argument prototype would still apply.  */
-char zlibVersion ();
-int
-main ()
-{
-zlibVersion ();
-  ;
-  return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
-  (eval $ac_link) 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } &&
-	 { ac_try='test -z "$ac_c_werror_flag"
-			 || test ! -s conftest.err'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; } &&
-	 { ac_try='test -s conftest$ac_exeext'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
-  ac_cv_search_zlibVersion="none required"
-else
-  echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-fi
-rm -f conftest.err conftest.$ac_objext \
-      conftest$ac_exeext conftest.$ac_ext
-if test "$ac_cv_search_zlibVersion" = no; then
-  for ac_lib in z; do
-    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
-    cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-
-/* Override any gcc2 internal prototype to avoid an error.  */
-#ifdef __cplusplus
-extern "C"
-#endif
-/* We use char because int might match the return type of a gcc2
-   builtin and then its argument prototype would still apply.  */
-char zlibVersion ();
-int
-main ()
-{
-zlibVersion ();
-  ;
-  return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
-  (eval $ac_link) 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } &&
-	 { ac_try='test -z "$ac_c_werror_flag"
-			 || test ! -s conftest.err'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; } &&
-	 { ac_try='test -s conftest$ac_exeext'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
-  ac_cv_search_zlibVersion="-l$ac_lib"
-break
-else
-  echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-fi
-rm -f conftest.err conftest.$ac_objext \
-      conftest$ac_exeext conftest.$ac_ext
-  done
-fi
-LIBS=$ac_func_search_save_LIBS
-fi
-echo "$as_me:$LINENO: result: $ac_cv_search_zlibVersion" >&5
-echo "${ECHO_T}$ac_cv_search_zlibVersion" >&6
-if test "$ac_cv_search_zlibVersion" != no; then
-  test "$ac_cv_search_zlibVersion" = "none required" || LIBS="$ac_cv_search_zlibVersion $LIBS"
-
-for ac_header in zlib.h
-do
-as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
-if eval "test \"\${$as_ac_Header+set}\" = set"; then
-  echo "$as_me:$LINENO: checking for $ac_header" >&5
-echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
-if eval "test \"\${$as_ac_Header+set}\" = set"; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
-fi
-echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
-echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
-else
-  # Is the header compilable?
-echo "$as_me:$LINENO: checking $ac_header usability" >&5
-echo $ECHO_N "checking $ac_header usability... $ECHO_C" >&6
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-$ac_includes_default
-#include <$ac_header>
-_ACEOF
-rm -f conftest.$ac_objext
-if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
-  (eval $ac_compile) 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } &&
-	 { ac_try='test -z "$ac_c_werror_flag"
-			 || test ! -s conftest.err'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; } &&
-	 { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
-  ac_header_compiler=yes
-else
-  echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-ac_header_compiler=no
-fi
-rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
-echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
-echo "${ECHO_T}$ac_header_compiler" >&6
-
-# Is the header present?
-echo "$as_me:$LINENO: checking $ac_header presence" >&5
-echo $ECHO_N "checking $ac_header presence... $ECHO_C" >&6
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-#include <$ac_header>
-_ACEOF
-if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
-  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } >/dev/null; then
-  if test -s conftest.err; then
-    ac_cpp_err=$ac_c_preproc_warn_flag
-    ac_cpp_err=$ac_cpp_err$ac_c_werror_flag
-  else
-    ac_cpp_err=
-  fi
-else
-  ac_cpp_err=yes
-fi
-if test -z "$ac_cpp_err"; then
-  ac_header_preproc=yes
-else
-  echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-  ac_header_preproc=no
-fi
-rm -f conftest.err conftest.$ac_ext
-echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
-echo "${ECHO_T}$ac_header_preproc" >&6
-
-# So?  What about this header?
-case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in
-  yes:no: )
-    { echo "$as_me:$LINENO: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&5
-echo "$as_me: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&2;}
-    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the compiler's result" >&5
-echo "$as_me: WARNING: $ac_header: proceeding with the compiler's result" >&2;}
-    ac_header_preproc=yes
-    ;;
-  no:yes:* )
-    { echo "$as_me:$LINENO: WARNING: $ac_header: present but cannot be compiled" >&5
-echo "$as_me: WARNING: $ac_header: present but cannot be compiled" >&2;}
-    { echo "$as_me:$LINENO: WARNING: $ac_header:     check for missing prerequisite headers?" >&5
-echo "$as_me: WARNING: $ac_header:     check for missing prerequisite headers?" >&2;}
-    { echo "$as_me:$LINENO: WARNING: $ac_header: see the Autoconf documentation" >&5
-echo "$as_me: WARNING: $ac_header: see the Autoconf documentation" >&2;}
-    { echo "$as_me:$LINENO: WARNING: $ac_header:     section \"Present But Cannot Be Compiled\"" >&5
-echo "$as_me: WARNING: $ac_header:     section \"Present But Cannot Be Compiled\"" >&2;}
-    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
-echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;}
-    { echo "$as_me:$LINENO: WARNING: $ac_header: in the future, the compiler will take precedence" >&5
-echo "$as_me: WARNING: $ac_header: in the future, the compiler will take precedence" >&2;}
-    (
-      cat <<\_ASBOX
-## ------------------------------------------ ##
-## Report this to the AC_PACKAGE_NAME lists.  ##
-## ------------------------------------------ ##
-_ASBOX
-    ) |
-      sed "s/^/$as_me: WARNING:     /" >&2
-    ;;
-esac
-echo "$as_me:$LINENO: checking for $ac_header" >&5
-echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
-if eval "test \"\${$as_ac_Header+set}\" = set"; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
-else
-  eval "$as_ac_Header=\$ac_header_preproc"
-fi
-echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
-echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
-
-fi
-if test `eval echo '${'$as_ac_Header'}'` = yes; then
-  cat >>confdefs.h <<_ACEOF
-#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
-_ACEOF
-
-fi
-
-done
-
-fi
-
-
 # For the TUI, we need enhanced curses functionality.
 #
 # FIXME: kettenis/20040905: We prefer ncurses over the vendor-supplied
@@ -31116,14 +30848,17 @@ if test "$no_create" != yes; then
 fi
 
 #
-# CONFIG_SUBDIRS section.
+# CONFIG_SUBDIRS section, as fixed in confsubdir.m4.
 #
 if test "$no_recursion" != yes; then
 
   # Remove --cache-file and --srcdir arguments so they do not pile up.
   ac_sub_configure_args=
   ac_prev=
-  for ac_arg in $ac_configure_args; do
+  eval "set x $ac_configure_args"
+  shift
+  for ac_arg
+  do
     if test -n "$ac_prev"; then
       ac_prev=
       continue
@@ -31146,20 +30881,28 @@ if test "$no_recursion" != yes; then
       ac_prev=prefix ;;
     -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*)
       ;;
-    *) ac_sub_configure_args="$ac_sub_configure_args $ac_arg" ;;
+    *)
+      case $ac_arg in
+      *\'*) ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
+      esac
+      ac_sub_configure_args="$ac_sub_configure_args '$ac_arg'" ;;
     esac
   done
 
   # Always prepend --prefix to ensure using the same prefix
   # in subdir configurations.
-  ac_sub_configure_args="--prefix=$prefix $ac_sub_configure_args"
+  ac_arg="--prefix=$prefix"
+  case $ac_arg in
+  *\'*) ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
+  esac
+  ac_sub_configure_args="$ac_arg $ac_sub_configure_args"
 
   ac_popdir=`pwd`
   for ac_dir in : $subdirs; do test "x$ac_dir" = x: && continue
 
     # Do not complain, so a configure script can configure whichever
     # parts of a large source tree are present.
-    test -d $srcdir/$ac_dir || continue
+    test -d "$srcdir/$ac_dir" || continue
 
     { echo "$as_me:$LINENO: configuring in $ac_dir" >&5
 echo "$as_me: configuring in $ac_dir" >&6;}
@@ -31254,15 +30997,16 @@ case $ac_abs_builddir in
 esac
 
 
-    cd $ac_dir
+    cd "$ac_dir"
 
     # Check for guested configure; otherwise get Cygnus style configure.
-    if test -f $ac_srcdir/configure.gnu; then
-      ac_sub_configure="$SHELL '$ac_srcdir/configure.gnu'"
-    elif test -f $ac_srcdir/configure; then
-      ac_sub_configure="$SHELL '$ac_srcdir/configure'"
-    elif test -f $ac_srcdir/configure.in; then
-      ac_sub_configure=$ac_configure
+    if test -f "$ac_srcdir/configure.gnu"; then
+      ac_sub_configure=$ac_srcdir/configure.gnu
+    elif test -f "$ac_srcdir/configure"; then
+      ac_sub_configure=$ac_srcdir/configure
+    elif test -f "$ac_srcdir/configure.in"; then
+      # This should be Cygnus configure.
+      ac_sub_configure=$ac_aux_dir/configure
     else
       { echo "$as_me:$LINENO: WARNING: no configuration information is in $ac_dir" >&5
 echo "$as_me: WARNING: no configuration information is in $ac_dir" >&2;}
@@ -31278,17 +31022,17 @@ echo "$as_me: WARNING: no configuration information is in $ac_dir" >&2;}
 	ac_sub_cache_file=$ac_top_builddir$cache_file ;;
       esac
 
-      { echo "$as_me:$LINENO: running $ac_sub_configure $ac_sub_configure_args --cache-file=$ac_sub_cache_file --srcdir=$ac_srcdir" >&5
-echo "$as_me: running $ac_sub_configure $ac_sub_configure_args --cache-file=$ac_sub_cache_file --srcdir=$ac_srcdir" >&6;}
+      { echo "$as_me:$LINENO: running $SHELL $ac_sub_configure $ac_sub_configure_args --cache-file=$ac_sub_cache_file --srcdir=$ac_srcdir" >&5
+echo "$as_me: running $SHELL $ac_sub_configure $ac_sub_configure_args --cache-file=$ac_sub_cache_file --srcdir=$ac_srcdir" >&6;}
       # The eval makes quoting arguments work.
-      eval $ac_sub_configure $ac_sub_configure_args \
-	   --cache-file=$ac_sub_cache_file --srcdir=$ac_srcdir ||
+      eval "\$SHELL \"\$ac_sub_configure\" $ac_sub_configure_args \
+	   --cache-file=\"\$ac_sub_cache_file\" --srcdir=\"\$ac_srcdir\"" ||
 	{ { echo "$as_me:$LINENO: error: $ac_sub_configure failed for $ac_dir" >&5
 echo "$as_me: error: $ac_sub_configure failed for $ac_dir" >&2;}
    { (exit 1); exit 1; }; }
     fi
 
-    cd $ac_popdir
+    cd "$ac_popdir"
   done
 fi
 
diff --git a/gdb/gdbserver/ChangeLog b/gdb/gdbserver/ChangeLog
index 7b97dfc..ea0ba8b 100644
--- a/gdb/gdbserver/ChangeLog
+++ b/gdb/gdbserver/ChangeLog
@@ -1,3 +1,8 @@
+2008-04-23  Paolo Bonzini  <bonzini@gnu.org>
+
+        * acinclude.m4: Add override.m4.
+        * configure: Regenerate.
+
 2008-04-21  Ulrich Weigand  <uweigand@de.ibm.com>
 
 	* linux-ppc-low.c (ppc_arch_setup): Reset ppc_hwcap after the
diff --git a/gdb/gdbserver/acinclude.m4 b/gdb/gdbserver/acinclude.m4
index aaad2e2..b32fe8c 100644
--- a/gdb/gdbserver/acinclude.m4
+++ b/gdb/gdbserver/acinclude.m4
@@ -1,6 +1,9 @@
 dnl gdb/gdbserver/configure.in uses BFD_HAVE_SYS_PROCFS_TYPE.
 sinclude(../../bfd/bfd.m4)
 
+dnl This gets autoconf bugfixes
+sinclude(../../config/override.m4)
+
 AC_DEFUN([SRV_CHECK_THREAD_DB],
 [AC_CACHE_CHECK([for libthread_db],[srv_cv_thread_db],
  [old_LIBS="$LIBS"
diff --git a/gdb/gdbserver/configure b/gdb/gdbserver/configure
index 0b45c47..18b114e 100755
--- a/gdb/gdbserver/configure
+++ b/gdb/gdbserver/configure
@@ -1241,13 +1241,22 @@ echo "$as_me: error: \`$ac_var' was not set in the previous run" >&2;}
     ,);;
     *)
       if test "x$ac_old_val" != "x$ac_new_val"; then
-	{ echo "$as_me:$LINENO: error: \`$ac_var' has changed since the previous run:" >&5
+        # differences in whitespace do not lead to failure.
+        ac_old_val_w=`echo x $ac_old_val`
+        ac_new_val_w=`echo x $ac_new_val`
+        if test "$ac_old_val_w" != "$ac_new_val_w"; then
+          { echo "$as_me:$LINENO: error: \`$ac_var' has changed since the previous run:" >&5
 echo "$as_me: error: \`$ac_var' has changed since the previous run:" >&2;}
-	{ echo "$as_me:$LINENO:   former value:  $ac_old_val" >&5
-echo "$as_me:   former value:  $ac_old_val" >&2;}
-	{ echo "$as_me:$LINENO:   current value: $ac_new_val" >&5
-echo "$as_me:   current value: $ac_new_val" >&2;}
-	ac_cache_corrupted=:
+          ac_cache_corrupted=:
+        else
+          { echo "$as_me:$LINENO: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&5
+echo "$as_me: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&2;}
+          eval $ac_var=\$ac_old_val
+        fi
+        { echo "$as_me:$LINENO:   former value:  \`$ac_old_val'" >&5
+echo "$as_me:   former value:  \`$ac_old_val'" >&2;}
+        { echo "$as_me:$LINENO:   current value: \`$ac_new_val'" >&5
+echo "$as_me:   current value: \`$ac_new_val'" >&2;}
       fi;;
   esac
   # Pass precious variables to config.status.
diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index bcf8619..e8c1531 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2008-04-23  Paolo Bonzini  <bonzini@gnu.org>
+		
+        * aclocal.m4: Add override.m4.
+        * configure: Regenerate.
+
 2008-04-19  Vladimir Prus  <vladimir@codesourcery.com>
 
 	* gdb.mi/var-cmd.c (do_at_tests): Verify that
diff --git a/gdb/testsuite/aclocal.m4 b/gdb/testsuite/aclocal.m4
index 1b10180..f58abae 100644
--- a/gdb/testsuite/aclocal.m4
+++ b/gdb/testsuite/aclocal.m4
@@ -1 +1,2 @@
 sinclude(../../config/acx.m4)
+sinclude(../../config/override.m4)
diff --git a/gdb/testsuite/configure b/gdb/testsuite/configure
index 9039b2f..1a3e813 100755
--- a/gdb/testsuite/configure
+++ b/gdb/testsuite/configure
@@ -1249,13 +1249,22 @@ echo "$as_me: error: \`$ac_var' was not set in the previous run" >&2;}
     ,);;
     *)
       if test "x$ac_old_val" != "x$ac_new_val"; then
-	{ echo "$as_me:$LINENO: error: \`$ac_var' has changed since the previous run:" >&5
+        # differences in whitespace do not lead to failure.
+        ac_old_val_w=`echo x $ac_old_val`
+        ac_new_val_w=`echo x $ac_new_val`
+        if test "$ac_old_val_w" != "$ac_new_val_w"; then
+          { echo "$as_me:$LINENO: error: \`$ac_var' has changed since the previous run:" >&5
 echo "$as_me: error: \`$ac_var' has changed since the previous run:" >&2;}
-	{ echo "$as_me:$LINENO:   former value:  $ac_old_val" >&5
-echo "$as_me:   former value:  $ac_old_val" >&2;}
-	{ echo "$as_me:$LINENO:   current value: $ac_new_val" >&5
-echo "$as_me:   current value: $ac_new_val" >&2;}
-	ac_cache_corrupted=:
+          ac_cache_corrupted=:
+        else
+          { echo "$as_me:$LINENO: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&5
+echo "$as_me: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&2;}
+          eval $ac_var=\$ac_old_val
+        fi
+        { echo "$as_me:$LINENO:   former value:  \`$ac_old_val'" >&5
+echo "$as_me:   former value:  \`$ac_old_val'" >&2;}
+        { echo "$as_me:$LINENO:   current value: \`$ac_new_val'" >&5
+echo "$as_me:   current value: \`$ac_new_val'" >&2;}
       fi;;
   esac
   # Pass precious variables to config.status.
@@ -4047,14 +4056,17 @@ if test "$no_create" != yes; then
 fi
 
 #
-# CONFIG_SUBDIRS section.
+# CONFIG_SUBDIRS section, as fixed in confsubdir.m4.
 #
 if test "$no_recursion" != yes; then
 
   # Remove --cache-file and --srcdir arguments so they do not pile up.
   ac_sub_configure_args=
   ac_prev=
-  for ac_arg in $ac_configure_args; do
+  eval "set x $ac_configure_args"
+  shift
+  for ac_arg
+  do
     if test -n "$ac_prev"; then
       ac_prev=
       continue
@@ -4077,20 +4089,28 @@ if test "$no_recursion" != yes; then
       ac_prev=prefix ;;
     -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*)
       ;;
-    *) ac_sub_configure_args="$ac_sub_configure_args $ac_arg" ;;
+    *)
+      case $ac_arg in
+      *\'*) ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
+      esac
+      ac_sub_configure_args="$ac_sub_configure_args '$ac_arg'" ;;
     esac
   done
 
   # Always prepend --prefix to ensure using the same prefix
   # in subdir configurations.
-  ac_sub_configure_args="--prefix=$prefix $ac_sub_configure_args"
+  ac_arg="--prefix=$prefix"
+  case $ac_arg in
+  *\'*) ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
+  esac
+  ac_sub_configure_args="$ac_arg $ac_sub_configure_args"
 
   ac_popdir=`pwd`
   for ac_dir in : $subdirs; do test "x$ac_dir" = x: && continue
 
     # Do not complain, so a configure script can configure whichever
     # parts of a large source tree are present.
-    test -d $srcdir/$ac_dir || continue
+    test -d "$srcdir/$ac_dir" || continue
 
     { echo "$as_me:$LINENO: configuring in $ac_dir" >&5
 echo "$as_me: configuring in $ac_dir" >&6;}
@@ -4185,15 +4205,16 @@ case $ac_abs_builddir in
 esac
 
 
-    cd $ac_dir
+    cd "$ac_dir"
 
     # Check for guested configure; otherwise get Cygnus style configure.
-    if test -f $ac_srcdir/configure.gnu; then
-      ac_sub_configure="$SHELL '$ac_srcdir/configure.gnu'"
-    elif test -f $ac_srcdir/configure; then
-      ac_sub_configure="$SHELL '$ac_srcdir/configure'"
-    elif test -f $ac_srcdir/configure.in; then
-      ac_sub_configure=$ac_configure
+    if test -f "$ac_srcdir/configure.gnu"; then
+      ac_sub_configure=$ac_srcdir/configure.gnu
+    elif test -f "$ac_srcdir/configure"; then
+      ac_sub_configure=$ac_srcdir/configure
+    elif test -f "$ac_srcdir/configure.in"; then
+      # This should be Cygnus configure.
+      ac_sub_configure=$ac_aux_dir/configure
     else
       { echo "$as_me:$LINENO: WARNING: no configuration information is in $ac_dir" >&5
 echo "$as_me: WARNING: no configuration information is in $ac_dir" >&2;}
@@ -4209,17 +4230,17 @@ echo "$as_me: WARNING: no configuration information is in $ac_dir" >&2;}
 	ac_sub_cache_file=$ac_top_builddir$cache_file ;;
       esac
 
-      { echo "$as_me:$LINENO: running $ac_sub_configure $ac_sub_configure_args --cache-file=$ac_sub_cache_file --srcdir=$ac_srcdir" >&5
-echo "$as_me: running $ac_sub_configure $ac_sub_configure_args --cache-file=$ac_sub_cache_file --srcdir=$ac_srcdir" >&6;}
+      { echo "$as_me:$LINENO: running $SHELL $ac_sub_configure $ac_sub_configure_args --cache-file=$ac_sub_cache_file --srcdir=$ac_srcdir" >&5
+echo "$as_me: running $SHELL $ac_sub_configure $ac_sub_configure_args --cache-file=$ac_sub_cache_file --srcdir=$ac_srcdir" >&6;}
       # The eval makes quoting arguments work.
-      eval $ac_sub_configure $ac_sub_configure_args \
-	   --cache-file=$ac_sub_cache_file --srcdir=$ac_srcdir ||
+      eval "\$SHELL \"\$ac_sub_configure\" $ac_sub_configure_args \
+	   --cache-file=\"\$ac_sub_cache_file\" --srcdir=\"\$ac_srcdir\"" ||
 	{ { echo "$as_me:$LINENO: error: $ac_sub_configure failed for $ac_dir" >&5
 echo "$as_me: error: $ac_sub_configure failed for $ac_dir" >&2;}
    { (exit 1); exit 1; }; }
     fi
 
-    cd $ac_popdir
+    cd "$ac_popdir"
   done
 fi