[gcc r13-3403] Make 'autoreconf' work for 'gcc', 'libobjc'

[Thomas Schwinge <tschwinge@gcc.gnu.org>]

https://gcc.gnu.org/g:25861cf3a88a07c8dca3fb32d098c0ad756bbe38

commit r13-3403-g25861cf3a88a07c8dca3fb32d098c0ad756bbe38
Author: Thomas Schwinge <thomas@codesourcery.com>
Date:   Tue Sep 20 14:27:05 2022 +0200

    Make 'autoreconf' work for 'gcc', 'libobjc'
    
    With that, we may then run plain 'autoreconf' for all of GCC's subpackages,
    instead of for some of those (that don't use Automake) manually having to run
    the applicable combination of 'aclocal', 'autoconf', 'autoheader'.
    
    See also 'AC_CONFIG_MACRO_DIRS'/'AC_CONFIG_MACRO_DIR' usage elsewhere.
    
            gcc/
            * configure.ac (AC_CONFIG_MACRO_DIRS): Instantiate.
            * configure: Regenerate.
            libobjc/
            * configure.ac (AC_CONFIG_MACRO_DIRS): Instantiate.
            * configure: Regenerate.

Diff:
---
 gcc/configure        | 5 +++--
 gcc/configure.ac     | 1 +
 libobjc/configure    | 5 +++--
 libobjc/configure.ac | 1 +
 4 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/gcc/configure b/gcc/configure
index 2ce51a8a458..c6def4c88e5 100755
--- a/gcc/configure
+++ b/gcc/configure
@@ -3333,6 +3333,7 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
 
 
+
 ac_config_headers="$ac_config_headers auto-host.h:config.in"
 
 
@@ -19713,7 +19714,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 19716 "configure"
+#line 19717 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -19819,7 +19820,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 19822 "configure"
+#line 19823 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
diff --git a/gcc/configure.ac b/gcc/configure.ac
index e1ef2ecf026..45bf7560e6f 100644
--- a/gcc/configure.ac
+++ b/gcc/configure.ac
@@ -25,6 +25,7 @@
 
 AC_INIT
 AC_CONFIG_SRCDIR(tree.cc)
+AC_CONFIG_MACRO_DIRS([../config] [..])
 AC_CONFIG_HEADER(auto-host.h:config.in)
 
 gcc_version=`cat $srcdir/BASE-VER`
diff --git a/libobjc/configure b/libobjc/configure
index a8fdc643349..6da20b8e4ff 100755
--- a/libobjc/configure
+++ b/libobjc/configure
@@ -2218,6 +2218,7 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
 
 
+
 ac_aux_dir=
 for ac_dir in "$srcdir" "$srcdir/.." "$srcdir/../.."; do
   if test -f "$ac_dir/install-sh"; then
@@ -10795,7 +10796,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 10798 "configure"
+#line 10799 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -10901,7 +10902,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 10904 "configure"
+#line 10905 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
diff --git a/libobjc/configure.ac b/libobjc/configure.ac
index f8f577cfbef..6f58a45d4cb 100644
--- a/libobjc/configure.ac
+++ b/libobjc/configure.ac
@@ -20,6 +20,7 @@
 
 AC_INIT(package-unused, version-unused,, libobjc)
 AC_CONFIG_SRCDIR([objc/objc.h])
+AC_CONFIG_MACRO_DIRS([../config] [..])
 GCC_TOPLEV_SUBDIRS
 
 # We need the following definitions because AC_PROG_LIBTOOL relies on them