[gcc(refs/users/marxin/heads/sphinx-final)] fixup! sphinx: copy files from texi2rst-generated repository

[Martin Liska <marxin@gcc.gnu.org>]

https://gcc.gnu.org/g:3277b90e6509dd965518c202edba08e76f048844

commit 3277b90e6509dd965518c202edba08e76f048844
Author: Martin Liska <mliska@suse.cz>
Date:   Mon Nov 7 13:40:03 2022 +0100

    fixup! sphinx: copy files from texi2rst-generated repository

Diff:
---
 doc/requirements.txt                                                  | 3 +++
 .../the-gcc-subdirectory/building-documentation.rst                   | 4 ++--
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/doc/requirements.txt b/doc/requirements.txt
new file mode 100644
index 00000000000..f5558030ca8
--- /dev/null
+++ b/doc/requirements.txt
@@ -0,0 +1,3 @@
+Sphinx>=5.3
+furo
+sphinx_copybutton
diff --git a/gcc/doc/gccint/source-tree-structure-and-build-system/the-gcc-subdirectory/building-documentation.rst b/gcc/doc/gccint/source-tree-structure-and-build-system/the-gcc-subdirectory/building-documentation.rst
index 8184dbc6042..468742c8582 100644
--- a/gcc/doc/gccint/source-tree-structure-and-build-system/the-gcc-subdirectory/building-documentation.rst
+++ b/gcc/doc/gccint/source-tree-structure-and-build-system/the-gcc-subdirectory/building-documentation.rst
@@ -42,7 +42,7 @@ or ``virtualenv``, depending on how your distribution packaged Python 3.
 
 Note the :file:`requirements.txt` file is placed in :rst:dir:`gcc/doc` folder and contains the following packages:
 
-.. literalinclude:: ../../../requirements.txt
+.. literalinclude:: ../../../../../doc/requirements.txt
   :caption: requirements.txt
 
 Then the virtualenv can be provided to the configure script :option:`install:--with-sphinx-build`
@@ -232,4 +232,4 @@ with miscellaneous documentation:
   .. todo:: why isn't this part of this manual or of the GCC Coding Conventions?
 
   .. todo:: document such files in subdirectories, at least :samp:`config`,
-    :samp:`c`, :samp:`cp`, :samp:`objc`, :samp:`testsuite`.
\ No newline at end of file
+    :samp:`c`, :samp:`cp`, :samp:`objc`, :samp:`testsuite`.