docs: fix links pointing to gcc.gnu.org/install

Use https://gcc.gnu.org/onlinedocs/install/ instead.

ChangeLog:

	* configure.ac: Use new install URL.
	* configure: Regenerate.

gcc/ChangeLog:

	* Makefile.in: Use new install URL.
	* doc/gcc/gcc-command-options/machine-dependent-options/avr-options.rst:
	Use intersphinx link.
	* doc/gcc/gcc-command-options/options-to-control-diagnostic-messages-formatting.rst:
	Use new URL.
	* doc/gccint/source-tree-structure-and-build-system.rst: Use
	intersphinx link.
	* doc/install/host-target-specific-installation-notes-for-gcc.rst: Likewise.
	* doc/install/installing-gcc.rst: Likewise.

6 files changed, 8 insertions, 9 deletions

diff --git a/gcc/Makefile.in b/gcc/Makefile.in
index 059606c..4982012 100644
--- a/gcc/Makefile.in
+++ b/gcc/Makefile.in
@@ -2035,7 +2035,7 @@ cstamp-h: config.in config.status
 # config.status does not exist before failing.
 config.status: $(srcdir)/configure $(srcdir)/config.gcc $(LANG_CONFIGUREFRAGS)
 	@if [ ! -f config.status ] ; then \
-	  echo You must configure gcc.  Look at http://gcc.gnu.org/install/ for details.; \
+	  echo You must configure gcc.  Look at http://gcc.gnu.org/onlinedocs/install/ for details.; \
 	  false; \
 	else \
 	  LANGUAGES="$(CONFIG_LANGUAGES)" $(SHELL) config.status --recheck; \
diff --git a/gcc/doc/gcc/gcc-command-options/machine-dependent-options/avr-options.rst b/gcc/doc/gcc/gcc-command-options/machine-dependent-options/avr-options.rst
index b8157b2..5b2dc4b 100644
--- a/gcc/doc/gcc/gcc-command-options/machine-dependent-options/avr-options.rst
+++ b/gcc/doc/gcc/gcc-command-options/machine-dependent-options/avr-options.rst
@@ -62,8 +62,7 @@ GCC supports the following AVR devices and ISAs:
   Set the size (in bits) of the ``double`` or ``long double`` type,
   respectively.  Possible values for :samp:`{bits}` are 32 and 64.
   Whether or not a specific value for :samp:`{bits}` is allowed depends on
-  the ``--with-double=`` and ``--with-long-double=``
-  `configure options <https://gcc.gnu.org/install/configure.html#avr>`_,
+  the :option:`install:--with-double=`` and ``--with-long-double=``,
   and the same applies for the default values of the options.
 
 .. option:: -mgas-isr-prologues
diff --git a/gcc/doc/gcc/gcc-command-options/options-to-control-diagnostic-messages-formatting.rst b/gcc/doc/gcc/gcc-command-options/options-to-control-diagnostic-messages-formatting.rst
index 6e40ab2..20a14a1 100644
--- a/gcc/doc/gcc/gcc-command-options/options-to-control-diagnostic-messages-formatting.rst
+++ b/gcc/doc/gcc/gcc-command-options/options-to-control-diagnostic-messages-formatting.rst
@@ -687,7 +687,7 @@ honor these options.
             ],
             "message": "this ‘if’ clause does not guard...",
             "option": "-Wmisleading-indentation",
-            "option_url": "https://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html#index-Wmisleading-indentation",
+            "option_url": "https://gcc.gnu.org/onlinedocs/gcc/gcc-command-options/options-to-request-or-suppress-warnings.html#cmdoption-Wmisleading-indentation",
             "children": [
                 {
                     "kind": "note",
diff --git a/gcc/doc/gccint/source-tree-structure-and-build-system.rst b/gcc/doc/gccint/source-tree-structure-and-build-system.rst
index 14f09f3..a4be781 100644
--- a/gcc/doc/gccint/source-tree-structure-and-build-system.rst
+++ b/gcc/doc/gccint/source-tree-structure-and-build-system.rst
@@ -10,7 +10,7 @@ Source Tree Structure and Build System
 
 This chapter describes the structure of the GCC source tree, and how
 GCC is built.  The user documentation for building and installing GCC
-is in a separate manual (https://gcc.gnu.org/install/), with
+is in a separate manual (:ref:`install:installing-gcc`), with
 which it is presumed that you are familiar.
 
 .. toctree::
diff --git a/gcc/doc/install/host-target-specific-installation-notes-for-gcc.rst b/gcc/doc/install/host-target-specific-installation-notes-for-gcc.rst
index 637e1d8..3686cc5 100644
--- a/gcc/doc/install/host-target-specific-installation-notes-for-gcc.rst
+++ b/gcc/doc/install/host-target-specific-installation-notes-for-gcc.rst
@@ -157,7 +157,7 @@ a cross-compiler for CRIS.
 DOS
 ===
 
-Please have a look at the `binaries page <https://gcc.gnu.org/install/binaries.html>`_.
+Please have a look at the :ref:`binaries page <install:binaries>`.
 
 You cannot install GCC by itself on MSDOS; it will not compile under
 any MSDOS compiler except itself.  You need to get the complete
@@ -212,7 +212,7 @@ h8300-hms
 
 Renesas H8/300 series of processors.
 
-Please have a look at the `binaries page <https://gcc.gnu.org/install/binaries.html>`_.
+Please have a look at the :ref:`binaries page <install:binaries>`.
 
 The calling convention and structure layout has changed in release 2.6.
 All code must be recompiled.  The calling convention now passes the
@@ -288,7 +288,7 @@ be used to compile GCC 3.0 and up.
 
 The libffi library haven't been ported to 64-bit HP-UXand doesn't build.
 
-Refer to `binaries page <https://gcc.gnu.org/install/binaries.html>`_ for information about obtaining
+Refer to `binaries page <install:binaries>` for information about obtaining
 precompiled GCC binaries for HP-UX.  Precompiled binaries must be obtained
 to build the Ada language as it cannot be bootstrapped using C.  Ada is
 only available for the 32-bit PA-RISC runtime.
diff --git a/gcc/doc/install/installing-gcc.rst b/gcc/doc/install/installing-gcc.rst
index 0041de0..5966d5c 100644
--- a/gcc/doc/install/installing-gcc.rst
+++ b/gcc/doc/install/installing-gcc.rst
@@ -9,7 +9,7 @@ Installing GCC
 --------------
 
 The latest version of this document is always available at
-`https://gcc.gnu.org/install/ <https://gcc.gnu.org/install/>`_.
+https://gcc.gnu.org/onlinedocs/install/.
 It refers to the current development sources, instructions for
 specific released versions are included with the sources.