Rename some references to GTK+

We are dropping the plus.

README.md

-GTK+ — The GTK toolkit
-======================
+GTK — The GTK toolkit
+=====================
 
 [![Build Status](https://gitlab.gnome.org/GNOME/gtk/badges/master/build.svg)](https://gitlab.gnome.org/GNOME/gtk/pipelines)
 
 General information
 -------------------
 
-GTK+ is a multi-platform toolkit for creating graphical user interfaces.
-Offering a complete set of widgets, GTK+ is suitable for projects ranging
+GTK is a multi-platform toolkit for creating graphical user interfaces.
+Offering a complete set of widgets, GTK is suitable for projects ranging
 from small one-off projects to complete application suites.
 
-GTK+ is free software and part of the GNU Project. However, the
-licensing terms for GTK+, the GNU LGPL, allow it to be used by all
+GTK is free software and part of the GNU Project. However, the
+licensing terms for GTK, the GNU LGPL, allow it to be used by all
 developers, including those developing proprietary software, without any
 license fees or royalties.
 
@@ -39,7 +39,7 @@ Nightly documentation can be found at
 Building and installing
 -----------------------
 
-In order to build GTK+ you will need:
+In order to build GTK you will need:
 
   - [a C99 compatible compiler](https://wiki.gnome.org/Projects/GLib/CompilerRequirements)
   - [Python 3](https://www.python.org/)
@@ -79,7 +79,7 @@ If you are building the Wayland backend, you will also need:
   - Wayland-cursor
   - Wayland-EGL
 
-Once you have all the necessary dependencies, you can build GTK+ by using
+Once you have all the necessary dependencies, you can build GTK by using
 Meson:
 
 ```sh
@@ -94,7 +94,7 @@ You can run the test suite using:
 $ meson test
 ```
 
-And, finally, you can install GTK+ using:
+And, finally, you can install GTK using:
 
 ```
 $ sudo ninja install
@@ -118,10 +118,10 @@ In the bug report please include:
 
 * Information about your system. For instance:
 
-   - which version of GTK+ you are using
+   - which version of GTK you are using
    - what operating system and version
    - for Linux, which distribution
-   - if you built GTK+, the list of options used to configure the build
+   - if you built GTK, the list of options used to configure the build
 
   And anything else you think is relevant.
 
@@ -143,7 +143,7 @@ In the bug report please include:
 Release notes
 -------------
 
-The release notes for GTK+ are part of the migration guide in the API
+The release notes for GTK are part of the migration guide in the API
 reference. See:
 
  - [3.x release notes](https://developer.gnome.org/gtk3/unstable/gtk-migrating-2-to-3.html)
@@ -152,7 +152,7 @@ reference. See:
 Licensing terms
 ---------------
 
-GTK+ is released under the terms of the GNU Lesser General Public License,
+GTK is released under the terms of the GNU Lesser General Public License,
 version 2.1 or, at your option, any later version, as published by the Free
 Software Foundation.
 

gtk.doap

@@ -6,20 +6,20 @@
          xmlns="http://usefulinc.com/ns/doap#">
 
   <name xml:lang="en">gtk+</name>
-  <shortname>gtk+</shortname>
+  <shortname>gtk</shortname>
   <shortdesc xml:lang="en">Multi-platform toolkit</shortdesc>
-  <description xml:lang="en">GTK+ is a multi-platform toolkit for creating graphical user
-interfaces. Offering a complete set of widgets, GTK+ is suitable for
+  <description xml:lang="en">GTK is a multi-platform toolkit for creating graphical user
+interfaces. Offering a complete set of widgets, GTK is suitable for
 projects ranging from small one-off tools to complete application
 suites.
 
-GTK+ has been designed from the ground up to support a range of
-languages, not only C/C++. Using GTK+ from languages such as Perl and
+GTK has been designed from the ground up to support a range of
+languages, not only C/C++. Using GTK from languages such as Perl and
 Python (especially in combination with the Glade GUI builder) provides
 an effective method of rapid application development.
 
-GTK+ is free software and part of the GNU Project. However, the
-licensing terms for GTK+, the GNU LGPL, allow it to be used by all
+GTK is free software and part of the GNU Project. However, the
+licensing terms for GTK, the GNU LGPL, allow it to be used by all
 developers, including those developing proprietary software, without
 any license fees or royalties.</description>
   <homepage rdf:resource="http://www.gtk.org/" />

gtk+-unix-print-4.0.pc.in → gtk4-unix-print.pc.in

@@ -7,8 +7,8 @@ targets=@GDK_BACKENDS@
 gtk_binary_version=@GTK_BINARY_VERSION@
 gtk_host=@host@
 
-Name: GTK+
-Description: GTK+ Unix print support
+Name: GTK
+Description: GTK Unix print support
 Version: @VERSION@
 Requires: gtk+-@GTK_API_VERSION@ @GTK_PACKAGES@
 Cflags: -I${includedir}/gtk-@GTK_API_VERSION@/unix-print

gtk+-4.0.pc.in → gtk4.pc.in

@@ -7,8 +7,8 @@ targets=@GDK_BACKENDS@
 gtk_binary_version=@GTK_BINARY_VERSION@
 gtk_host=@host@
 
-Name: GTK+
-Description: GTK+ Graphical UI Library
+Name: GTK
+Description: GTK Graphical UI Library
 Version: @VERSION@
 Requires: @GDK_PACKAGES@ @GSK_PACKAGES@ @GTK_PACKAGES@
 Requires.private: @GDK_PRIVATE_PACKAGES@ @GSK_PRIVATE_PACKAGES@ @GTK_PRIVATE_PACKAGES@

meson.build

@@ -864,27 +864,27 @@ pkgconf.set('GTK_EXTRA_CFLAGS', '')
 
 pkg_install_dir = join_paths(get_option('libdir'), 'pkgconfig')
 
-pkgs = [ 'gtk+-4.0.pc' ]
+pkgs = [ 'gtk4.pc' ]
 
 pkg_targets = ''
 foreach backend: [ 'broadway', 'quartz', 'wayland', 'win32', 'x11', ]
   if get_variable('@0@_enabled'.format(backend))
-    pkgs += ['gtk+-@0@-4.0.pc'.format(backend)]
+    pkgs += ['gtk4-@0@.pc'.format(backend)]
     pkg_targets += ' ' + backend
   endif
 endforeach
 pkgconf.set('GDK_BACKENDS', pkg_targets.strip())
 
 foreach pkg: pkgs
-  configure_file(input: 'gtk+-4.0.pc.in',
+  configure_file(input: 'gtk4.pc.in',
                  output: pkg,
                  configuration: pkgconf,
                  install_dir: pkg_install_dir)
 endforeach
 
 if os_unix
-  configure_file(input: 'gtk+-unix-print-4.0.pc.in',
-                 output: 'gtk+-unix-print-4.0.pc',
+  configure_file(input: 'gtk4-unix-print.pc.in',
+                 output: 'gtk4-unix-print.pc',
                  configuration: pkgconf,
                  install_dir: pkg_install_dir)
 endif
@@ -907,7 +907,7 @@ meson.add_install_script('build-aux/meson/post-install.sh',
 summary = [
   '',
   '------',
-  'GTK+ @0@ (@1@)'.format(gtk_version, gtk_api_version),
+  'GTK @0@ (@1@)'.format(gtk_version, gtk_api_version),
   '',
   '  Display backends: @0@'.format(pkg_targets.strip()),
   '    Print backends: @0@'.format(' '.join(print_backends)),