DOC: Remove outdated references to mplsetup.cfg

These have all been replaced by Meson build options.

Author: QuLogic

doc/api/prev_api_changes/api_changes_3.5.0/development.rst

@@ -77,6 +77,6 @@ In order to avoid conflicting with the use of :file:`setup.cfg` by
 ``setup.cfg`` to ``mplsetup.cfg``.  The :file:`setup.cfg.template` has been
 correspondingly been renamed to :file:`mplsetup.cfg.template`.
 
-Note that the path to this configuration file can still be set via the
-:envvar:`MPLSETUPCFG` environment variable, which allows one to keep using the
-same file before and after this change.
+Note that the path to this configuration file can still be set via the ``MPLSETUPCFG``
+environment variable, which allows one to keep using the same file before and after this
+change.

doc/install/environment_variables_faq.rst

@@ -29,13 +29,6 @@ Environment variables
   used to find a base directory in which the :file:`matplotlib` subdirectory is
   created.
 
-.. envvar:: MPLSETUPCFG
-
-   This optional variable can be set to the full path of a :file:`mplsetup.cfg`
-   configuration file used to customize the Matplotlib build.  By default, a
-   :file:`mplsetup.cfg` file in the root of the Matplotlib source tree will be
-   read.  Supported build options are listed in :file:`mplsetup.cfg.template`.
-
 .. envvar:: PATH
 
   The list of directories searched to find executable programs.

doc/install/index.rst

@@ -121,22 +121,20 @@ Before trying to install Matplotlib, please install the :ref:`dependencies`.
 To build from a tarball, download the latest *tar.gz* release
 file from `the PyPI files page <https://pypi.org/project/matplotlib/>`_.
 
-We provide a `mplsetup.cfg`_ file which you can use to customize the build
-process. For example, which default backend to use, whether some of the
-optional libraries that Matplotlib ships with are installed, and so on. This
-file will be particularly useful to those packaging Matplotlib.
-
-.. _mplsetup.cfg: https://raw.githubusercontent.com/matplotlib/matplotlib/main/mplsetup.cfg.template
-
 If you are building your own Matplotlib wheels (or sdists) on Windows, note
 that any DLLs that you copy into the source tree will be packaged too.
 
-
 Configure build and behavior defaults
 =====================================
 
-Aspects of the build and install process and some behaviorial defaults of the
-library can be configured via:
+We provide a `meson.options`_ file containing options with which you can use to
+customize the build process. For example, which default backend to use, whether some of
+the optional libraries that Matplotlib ships with are installed, and so on. These
+options will be particularly useful to those packaging Matplotlib.
+
+.. _meson.options: https://github.com/matplotlib/matplotlib/blob/main/meson.options
+
+Aspects of some behaviorial defaults of the library can be configured via:
 
 .. toctree::
   :maxdepth: 2

src/checkdep_freetype2.c

@@ -1,7 +1,7 @@
 #ifdef __has_include
   #if !__has_include(<ft2build.h>)
     #error "FreeType version 2.3 or higher is required. \
-You may unset the system_freetype entry in mplsetup.cfg to let Matplotlib download it."
+You may set the system-freetype Meson build option to false to let Matplotlib download it."
   #endif
 #endif
 
@@ -15,5 +15,5 @@ You may unset the system_freetype entry in mplsetup.cfg to let Matplotlib downlo
   XSTR(FREETYPE_MAJOR) "." XSTR(FREETYPE_MINOR) "." XSTR(FREETYPE_PATCH) ".")
 #if FREETYPE_MAJOR << 16 + FREETYPE_MINOR << 8 + FREETYPE_PATCH < 0x020300
   #error "FreeType version 2.3 or higher is required. \
-You may unset the system_freetype entry in mplsetup.cfg to let Matplotlib download it."
+You may set the system-freetype Meson build option to false to let Matplotlib download it."
 #endif