PATCH: PR bootstrap/35752: Combined gcc + binutils source tree doesn't bootstrap

[Paolo Bonzini]

Can you test instead this patch (also at 
http://gcc.gnu.org/bugzilla/attachment.cgi?id=15402&action=view on 
bugzilla) please?

Index: configure.ac
===================================================================
--- configure.ac	(revision 133636)
+++ configure.ac	(working copy)
@@ -1817,6 +1817,14 @@ esac
  # Assembler & linker features
  # ---------------------------

+# We need to know how libtool works, or exec-tool will fail
+m4_define([_LT_DECL], [])
+_LT_CHECK_OBJDIR
+_LT_LINKER_HARDCODE_LIBPATH
+lt_objdir=$lt_cv_objdir
+AC_SUBST(lt_objdir)
+AC_SUBST(enable_fast_install)
+
  # Identify the assembler which will work hand-in-glove with the newly
  # built GCC, so that we can examine its features.  This is the assembler
  # which will be driven by the driver program.
Index: acinclude.m4
===================================================================
--- acinclude.m4	(revision 133636)
+++ acinclude.m4	(working copy)
@@ -482,3 +482,5 @@ dnl Make sure that build_exeext is looke
  AC_DEFUN([gcc_AC_BUILD_EXEEXT], [
  ac_executable_extensions="$build_exeext"])

+m4_include([../ltsugar.m4])
+m4_include([../libtool.m4])
Index: exec-tool.in
===================================================================
--- exec-tool.in	(revision 133636)
+++ exec-tool.in	(working copy)
@@ -23,6 +23,8 @@ ORIGINAL_AS_FOR_TARGET="@ORIGINAL_AS_FOR
  ORIGINAL_LD_FOR_TARGET="@ORIGINAL_LD_FOR_TARGET@"
  ORIGINAL_NM_FOR_TARGET="@ORIGINAL_NM_FOR_TARGET@"
  exeext=@host_exeext@
+fast_install=@enable_fast_install@
+lt_objdir=@lt_objdir@

  invoked=`basename "$0"`
  case "$invoked" in
@@ -49,7 +51,13 @@ case "$original" in
      tdir=`dirname "$0"`
      scriptdir=`cd "$tdir" && pwd`

-    if test -x $scriptdir/../$dir/$prog; then
+    if test "$fast_install" = yes; then
+      lt_prog=$scriptdir/../$dir/$lt_objdir/lt-$prog
+    else
+      lt_prog=$scriptdir/../$dir/$prog
+    fi
+
+    if test -x $lt_prog; then
        exec $scriptdir/../$dir/$prog ${1+"$@"}
      else
        exec $scriptdir/../prev-$dir/$prog ${1+"$@"}