New release

git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/back/branches/gnustep_testplant_branch@40163 72102866-910b-0410-8b05-ffd578937521

Co-authored-by: Marcian Lytwyn <gna@advcsi.com>

.github/workflows/main.yml

@@ -0,0 +1,47 @@
+on:
+  push:
+  pull_request:
+
+jobs:
+  ########### Linux ###########
+  linux:
+    name: ci
+    runs-on: ubuntu-latest
+
+    container:
+      image: ubuntu:22.04
+
+    # don't run pull requests from local branches twice
+    if: github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name != github.repository
+
+    strategy:
+      matrix:
+        include:
+          - server: x11
+            graphics: cairo
+          - server: x11
+            graphics: xlib
+          - server: headless
+            graphics: headless
+
+    env:
+      DEBIAN_FRONTEND: noninteractive
+
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Install packages
+        run: |
+          apt-get -q -y update
+          apt-get -q -y install libgnustep-gui-dev libfreetype-dev libcairo2-dev libxt-dev pkg-config build-essential
+
+      - name: Build source
+        run: |
+          . /usr/share/GNUstep/Makefiles/GNUstep.sh
+          ./configure --enable-server=${{ matrix.server }} --enable-graphics=${{ matrix.graphics }}
+          make && make install
+
+      - name: Run tests
+        run: |
+          . /usr/share/GNUstep/Makefiles/GNUstep.sh
+          make check

ANNOUNCE

@@ -1,7 +1,7 @@
 1 Announcement
 **************
 
-This is version 0.29.0 of the GNUstep GUI Backend ('gnustep-back').
+This is version 0.32.0 of the GNUstep GUI Backend (‘gnustep-back’).
 
 1.1 What is the GNUstep GUI Backend?
 ====================================
@@ -20,32 +20,27 @@ easily ported to other display systems.
 Window's Systems.  It works via a DPS emulation engine to emulate the
 DPS functions required by the front-end system.
 
-1.2 Noteworthy changes in version '0.29.0'
+1.2 Noteworthy changes in version ‘0.32.0’
 ==========================================
 
-The release includes an alpha version of the wayland backend and a few
-bug fixes.
+The release includes mostly bug fixes.
 
-   * Alpha version of the wayland backend.
-   * Improved focus handling for WindowMaker interaction.
-   * Speed up for font pattern resolving.
-   * Improved appicon behavior under WindowMaker.
-   * Prevent appicon flickering on WindowMaker at application start.
-   * On Windows, consistently use 'GetWindowLongPtr' and
-     'SetWindowLongPtr' in place of 'GetWindowLong' and 'SetWindowLong'
-     for win32 and cairo for various win64 fixes.
+   • Make window termination saver.
+   • Use default interpolation in Cairo.
+   • Allow UTF-8 input from XLookupString.
+   • Improve building on MS Windows.
 
 1.3 Where can you get it? How can you compile it?
 =================================================
 
-The gnustep-back-0.29.0.tar.gz distribution file has been placed at
+The gnustep-back-0.32.0.tar.gz distribution file has been placed at
 <ftp://ftp.gnustep.org/pub/gnustep/core>.
 
-   It is accompanied by gnustep-back-0.29.0.tar.gz.sig, a PGP signature
+   It is accompanied by gnustep-back-0.32.0.tar.gz.sig, a PGP signature
 which you can validate by putting both files in the same directory and
 using:
 
-     gpg --verify gnustep-back-0.29.0.tar.gz.sig
+     gpg --verify gnustep-back-0.32.0.tar.gz.sig
 
    Signature has been created using the key with the following
 fingerprint:

ChangeLog

@@ -1,3 +1,20 @@
+2025-02-11 Richard Frith-Macdonald <rfm@gnu.org>
+
+	* ANNOUNCE:
+	* INSTALL:
+	* NEWS:
+	* README:
+	* Version: bump to 0.32.0
+	New release
+
+2024-05-26 Fred Kiefer <FredKiefer@gmx.de>
+
+        * ChangeLog: Update for new release
+	* ANNOUNCE:
+	* NEWS:
+	* Documentation/news.texi: Update of release notes for 0.31.0.
+	* Version: bump to 0.31.0
+
 2022-12-29 Richard Frith-Macdonald <rfm@gnu.org>
 
         * ChangeLog: Update for new release

Documentation/news.texi

@@ -7,6 +7,30 @@
 @include version.texi
 @end ifset
 
+@section Noteworthy changes in version @samp{0.32.0}
+
+The release includes mostly bug fixes.
+
+@itemize @bullet
+@item Make window termination saver.
+@item Use default interpolation in Cairo.
+@item Allow UTF-8 input from XLookupString.
+@item Improve building on MS Windows.
+@end itemize
+
+@ifclear ANNOUNCE-ONLY
+
+@section Noteworthy changes in version @samp{0.31.0}
+
+The release includes mostly improvements for pasteboard handling and a few bug fixes.
+
+@itemize @bullet
+@item Improve font name creation.
+@item Add headless backend.
+@item Add CI pipeline.
+@end itemize
+
+
 @section Noteworthy changes in version @samp{0.30.0}
 
 The release includes mostly improvements for the new Wayland backend and  a few bug fixes.
@@ -18,7 +42,6 @@ The release includes mostly improvements for the new Wayland backend and  a few
 and at every Notify.
 @end itemize
 
-@ifclear ANNOUNCE-ONLY
 
 @section Noteworthy changes in version @samp{0.29.0}
 

Headers/headless/HeadlessContext.h

@@ -0,0 +1,33 @@
+/*
+   HeadlessContext.h
+
+   Copyright (C) 2003 Free Software Foundation, Inc.
+
+   This file is part of GNUstep.
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; see the file COPYING.LIB.
+   If not, see <http://www.gnu.org/licenses/> or write to the 
+   Free Software Foundation, 51 Franklin Street, Fifth Floor, 
+   Boston, MA 02110-1301, USA.
+*/
+
+#ifndef HeadlessContext_h
+#define HeadlessContext_h
+
+#include "gsc/GSContext.h"
+
+@interface HeadlessContext : GSContext
+@end
+
+#endif /* HeadlessContext_h */

Headers/headless/HeadlessFaceInfo.h

@@ -0,0 +1,42 @@
+/*
+   HeadlessFaceInfo.h
+
+   Copyright (C) 2003, 2023 Free Software Foundation, Inc.
+
+   Based on work by: Banlu Kemiyatorn <object at gmail dot com>
+   Based on work by: Alexander Malmberg <alexander@malmberg.org>
+   Based on work by: Fred Kiefer <fredkiefer@gmx.de>
+
+   This file is part of GNUstep.
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; see the file COPYING.LIB.
+   If not, see <http://www.gnu.org/licenses/> or write to the 
+   Free Software Foundation, 51 Franklin Street, Fifth Floor, 
+   Boston, MA 02110-1301, USA.
+*/
+
+#ifndef HeadlessFaceInfo_h
+#define HeadlessFaceInfo_h
+
+#include <Foundation/NSObject.h>
+
+@interface HeadlessFaceInfo : NSObject
+{
+	void *_fontFace;
+}
+
+- (void *)fontFace;
+
+@end
+#endif /* HeadlessFaceInfo_h */

Headers/headless/HeadlessFontEnumerator.h

@@ -0,0 +1,41 @@
+/*
+   HeadlessFontEnumeartorInfo.h
+
+   Copyright (C) 2003 Free Software Foundation, Inc.
+
+   Based on work by: Banlu Kemiyatorn <object at gmail dot com>
+
+   This file is part of GNUstep.
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; see the file COPYING.LIB.
+   If not, see <http://www.gnu.org/licenses/> or write to the 
+   Free Software Foundation, 51 Franklin Street, Fifth Floor, 
+   Boston, MA 02110-1301, USA.
+*/
+
+#ifndef HeadlessFontEnumerator_h
+#define HeadlessFontEnumerator_h
+
+#include <GNUstepGUI/GSFontInfo.h>
+
+#include "headless/HeadlessFaceInfo.h"
+
+@interface HeadlessFontEnumerator : GSFontEnumerator
+{
+}
++ (Class) faceInfoClass;
++ (HeadlessFaceInfo *) fontWithName: (NSString *)name;
+@end
+
+#endif /* HeadlessFontEnumerator_h */

Headers/headless/HeadlessFontInfo.h

@@ -0,0 +1,35 @@
+/*
+   HeadlessFontInfo.h
+
+   Copyright (C) 2003 Free Software Foundation, Inc.
+
+   Based on work by: Banlu Kemiyatorn <object at gmail dot com>
+
+   This file is part of GNUstep.
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; see the file COPYING.LIB.
+   If not, see <http://www.gnu.org/licenses/> or write to the 
+   Free Software Foundation, 51 Franklin Street, Fifth Floor, 
+   Boston, MA 02110-1301, USA.
+*/
+
+#ifndef HeadlessFontInfo_h
+#define HeadlessFontInfo_h
+
+#include <GNUstepGUI/GSFontInfo.h>
+
+@interface HeadlessFontInfo : GSFontInfo
+@end
+
+#endif /* HeadlessFontInfo_h */

Headers/headless/HeadlessGState.h

@@ -0,0 +1,37 @@
+/*
+   HeadlessGState.h
+
+   Copyright (C) 2004 Free Software Foundation, Inc.
+
+   Based on work by: Banlu Kemiyatorn <object at gmail dot com>
+
+   This file is part of GNUstep.
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; see the file COPYING.LIB.
+   If not, see <http://www.gnu.org/licenses/> or write to the 
+   Free Software Foundation, 51 Franklin Street, Fifth Floor, 
+   Boston, MA 02110-1301, USA.
+*/
+
+#ifndef HeadlessGState_h
+#define HeadlessGState_h
+
+#include "gsc/GSGState.h"
+
+@interface HeadlessGState : GSGState
+{
+}
+@end
+
+#endif /* HeadlessGState_h */

Headers/headless/HeadlessServer.h

@@ -0,0 +1,37 @@
+/*
+   HeadlessServer.h
+
+   Copyright (C) 2002-2015 Free Software Foundation, Inc.
+
+   This file is part of GNUstep.
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; see the file COPYING.LIB.
+   If not, see <http://www.gnu.org/licenses/> or write to the 
+   Free Software Foundation, 51 Franklin Street, Fifth Floor, 
+   Boston, MA 02110-1301, USA.
+*/
+
+#ifndef HeadlessServer_h
+#define HeadlessServer_h
+
+#include "config.h"
+
+#include <GNUstepGUI/GSDisplayServer.h>
+
+@interface HeadlessServer : GSDisplayServer
+{
+}
+@end
+
+#endif /* HeadlessServer_h */

INSTALL

@@ -5,7 +5,7 @@
 ================
 
 This file documents the installation of the GNUstep Backend Library,
-'gnustep-back'.  If you are installing this package as part of the
+‘gnustep-back’.  If you are installing this package as part of the
 GNUstep core package, read the file GNUstep-HOWTO for more complete
 instructions on how to install the entire GNUstep package (including
 this library).  GNUstep-HOWTO is located at <http://www.gnustep.org>
@@ -15,9 +15,9 @@ this library).  GNUstep-HOWTO is located at <http://www.gnustep.org>
 1.2 Configuration
 =================
 
-Configuration is performed by running the 'configure' program at a shell
+Configuration is performed by running the ‘configure’ program at a shell
 prompt.  You may want to use some of the optional arguments to the
-'configure' program.  Type 'configure --help' for a list.  GNUstep
+‘configure’ program.  Type ‘configure --help’ for a list.  GNUstep
 specific options are at the end of this list (if any).
 
    The backend comes with several different window server and graphics
@@ -27,7 +27,7 @@ choose the art graphical drawing implementation, run
 
      configure --enable-graphics=art
 
-   Type 'configure --help' for a list of graphical drawing
+   Type ‘configure --help’ for a list of graphical drawing
 implementations.
 
    You can also change the name of the backend when configuring it.
@@ -52,8 +52,8 @@ program:
 
 To compile this library, type make.  After this is complete, type make
 install (make sure you are the root user).  Some additional options you
-can use with make are 'debug=yes' to make a debugging version of the
-library and 'shared=no' to make a static version of the library.  See
+can use with make are ‘debug=yes’ to make a debugging version of the
+library and ‘shared=no’ to make a static version of the library.  See
 the gstep-make package for more information on these options.
 
 1.4 Installing

NEWS

@@ -1,79 +1,110 @@
 1 NEWS
 ******
 
-1.1 Noteworthy changes in version '0.29.0'
+1.1 Noteworthy changes in version ‘0.32.0’
+==========================================
+
+The release includes mostly bug fixes.
+
+   • Make window termination saver.
+   • Use default interpolation in Cairo.
+   • Allow UTF-8 input from XLookupString.
+   • Improve building on MS Windows.
+
+1.2 Noteworthy changes in version ‘0.31.0’
+==========================================
+
+The release includes mostly improvements for pasteboard handling and a
+few bug fixes.
+
+   • Improve font name creation.
+   • Add headless backend.
+   • Add CI pipeline.
+
+1.3 Noteworthy changes in version ‘0.30.0’
+==========================================
+
+The release includes mostly improvements for the new Wayland backend and
+a few bug fixes.
+
+   • Improvements for the wayland backend.
+   • Don't use font hinting for cauro, when using scaling.
+   • Fix pasteboard transfer of huge data by deleting property on begin
+     and at every Notify.
+
+1.4 Noteworthy changes in version ‘0.29.0’
 ==========================================
 
 The release includes an alpha version of the wayland backend and a few
 bug fixes.
 
-   * Alpha version of the wayland backend.
-   * Improved focus handling for WindowMaker interaction.
-   * Speed up for font pattern resolving.
-   * Improved appicon behavior under WindowMaker.
-   * Prevent appicon flickering on WindowMaker at application start.
-   * On Windows, consistently use 'GetWindowLongPtr' and
-     'SetWindowLongPtr' in place of 'GetWindowLong' and 'SetWindowLong'
+   • Alpha version of the wayland backend.
+   • Improved focus handling for WindowMaker interaction.
+   • Speed up for font pattern resolving.
+   • Improved appicon behavior under WindowMaker.
+   • Prevent appicon flickering on WindowMaker at application start.
+   • On Windows, consistently use ‘GetWindowLongPtr’ and
+     ‘SetWindowLongPtr’ in place of ‘GetWindowLong’ and ‘SetWindowLong’
      for win32 and cairo for various win64 fixes.
 
-1.2 Noteworthy changes in version '0.28.0'
+1.5 Noteworthy changes in version ‘0.28.0’
 ==========================================
 
 This release includes a few bugfixes and a huge rework of multi monitor
 handling.
 
-   * Improved focus handling for WindowMaker interaction.
-   * Cursor improvements.
-   * Better handling of fonts with fontconfig.
-   * Simplify code that converts images for X11.
-   * art: Remove ftfont-old.m.
-   * Use Xrandr for multi monitor support.
+   • Improved focus handling for WindowMaker interaction.
+   • Cursor improvements.
+   • Better handling of fonts with fontconfig.
+   • Simplify code that converts images for X11.
+   • art: Remove ftfont-old.m.
+   • Use Xrandr for multi monitor support.
 
-1.3 Noteworthy changes in version '0.27.0'
+1.6 Noteworthy changes in version ‘0.27.0’
 ==========================================
 
 This release includes a few bugfixes.
 
-   * configure: Improve configuration.
-   * xlib: Improve xft font classes.
-   * x11: Enable drawing in secondary threads.
-   * x11: Better handling of atoms.  Method to get the window manager.
-   * opal: Improve colour handling
+   • configure: Improve configuration.
+   • xlib: Improve xft font classes.
+   • x11: Enable drawing in secondary threads.
+   • x11: Better handling of atoms.  Method to get the window manager.
+   • opal: Improve colour handling
 
-1.4 Noteworthy changes in version '0.26.2'
+1.7 Noteworthy changes in version ‘0.26.2’
 ==========================================
 
 This release contains no changes since 0.26.1.  It is released to
 coincide with gnustep-gui 0.26.2, which has important bugfixes related
 to printing.
 
-1.5 Noteworthy changes in version '0.26.1'
+1.8 Noteworthy changes in version ‘0.26.1’
 ==========================================
 
 This release contains no changes since 0.26.0.  It is released to
 coincide with gnustep-gui 0.26.1, released to mark gnustep-base 1.25.1
 as the requirement for gnustep-gui.
 
-1.6 Noteworthy changes in version '0.26.0'
+1.9 Noteworthy changes in version ‘0.26.0’
 ==========================================
 
 This release includes a few bugfixes, as well as compatibility
 improvements as a result of GSoC 2017 project.
 
-   * opal: Bridging categories between Opal and GNUstep GUI. Added onto
+   • opal: Bridging categories between Opal and GNUstep GUI. Added onto
      NSColor, NSImage and NSImageRep.
-   * cairo: Get -DPSshow: to work on scaled windows.
-   * opal: Allow creating a NSGraphicsContext with a custom graphics
+   • cairo: Get -DPSshow: to work on scaled windows.
+   • opal: Allow creating a NSGraphicsContext with a custom graphics
      port, other than a CGContext.
-   * misc: Fix reported static analyser warnings.
+   • misc: Fix reported static analyser warnings.
 
-1.7 Noteworthy changes in version '0.25.1'
-==========================================
+1.10 Noteworthy changes in version ‘0.25.1’
+===========================================
 
 Small fixes and cleanups.
 
-1.8 Noteworthy changes in version '0.25.0'
-==========================================
+1.11 Noteworthy changes in version ‘0.25.0’
+===========================================
 
 Support for pattern phase, compositing operation, image interpolation
 and antialiasing per gstate.
@@ -84,28 +115,28 @@ and antialiasing per gstate.
 
    Various fixes.
 
-1.9 Noteworthy changes in version '0.24.1'
-==========================================
+1.12 Noteworthy changes in version ‘0.24.1’
+===========================================
 
 Improvements in win32 display and mouse tracking.
 
    Various minor bugfixes and cleanups.
 
-1.10 Noteworthy changes in version '0.24.0'
+1.13 Noteworthy changes in version ‘0.24.0’
 ===========================================
 
 Added experimental Opal backend.
 
    Allow for ARGB visual for OpenGL.
 
-1.11 Noteworthy changes in version '0.23.0'
+1.14 Noteworthy changes in version ‘0.23.0’
 ===========================================
 
 Added cairo support for ms-windows.
 
    Updated for NSInteger/CGFloat support
 
-1.12 Noteworthy changes in version '0.22.0'
+1.15 Noteworthy changes in version ‘0.22.0’
 ===========================================
 
 Added new user defaults to make app icons and mini windows sticky
@@ -114,7 +145,7 @@ Added new user defaults to make app icons and mini windows sticky
    Many improvements to Cairo rendering, including buffering, glyphs and
 DPI scaling.
 
-1.13 Noteworthy changes in version '0.20.0'
+1.16 Noteworthy changes in version ‘0.20.0’
 ===========================================
 
 Cairo is now the default backend, but falls back to art and xlib
@@ -124,37 +155,37 @@ gracefully.
 
    More Windows improvements.
 
-1.14 Noteworthy changes in version '0.19.0'
+1.17 Noteworthy changes in version ‘0.19.0’
 ===========================================
 
 This is an (unstable) copy of the 0.18.0 release
 
-1.15 Noteworthy changes in version '0.18.0'
+1.18 Noteworthy changes in version ‘0.18.0’
 ===========================================
 
 Many Windows improvements
 
    Implement pattern colours for all backends.
 
-1.16 Noteworthy changes in version '0.17.1'
+1.19 Noteworthy changes in version ‘0.17.1’
 ===========================================
 
 Use DejaVu as another fallback font.
 
-1.17 Noteworthy changes in version '0.17.0'
+1.20 Noteworthy changes in version ‘0.17.0’
 ===========================================
 
 Key repeat support implemented in X11.
 
    OpenGL fixes and improvements.
 
-1.18 Noteworthy changes in version '0.16.0'
+1.21 Noteworthy changes in version ‘0.16.0’
 ===========================================
 
 Transparent windows implemented in WIN32 backend, better position and
 scaling of images.  General cleanup of code.
 
-1.19 Noteworthy changes in version '0.14.0'
+1.22 Noteworthy changes in version ‘0.14.0’
 ===========================================
 
 Added code to automatically make any window which uses the
@@ -162,7 +193,7 @@ NSDesktopWindowLevel also be omnipresent.
 
    Many glyph drawing improvements.
 
-1.20 Noteworthy changes in version '0.13.2'
+1.23 Noteworthy changes in version ‘0.13.2’
 ===========================================
 
 Added basic implementation of window levels on Windows.  In general a
@@ -176,24 +207,24 @@ bunch of improvements in the Windows backend.
 frontend.  This version or greater of the backend needs to be used with
 gui 0.13.2
 
-1.21 Noteworthy changes in version '0.13.1'
+1.24 Noteworthy changes in version ‘0.13.1’
 ===========================================
 
 Minor improvements.
 
-1.22 Noteworthy changes in version '0.13.0'
+1.25 Noteworthy changes in version ‘0.13.0’
 ===========================================
 
 Many improvements to the cairo backend.  Add DPSshfill for all backends.
 Better handling of X event times.
 
-1.23 Noteworthy changes in version '0.12.0'
+1.26 Noteworthy changes in version ‘0.12.0’
 ===========================================
 
 Big improvements to the cairo graphics and Window backend.  Also better
 support for OpenGL.
 
-1.24 Noteworthy changes in version '0.11.0'
+1.27 Noteworthy changes in version ‘0.11.0’
 ===========================================
 
 Bugfixes to art and xlib.
@@ -201,17 +232,17 @@ Bugfixes to art and xlib.
    There was some work on the Windows backend for the GDI interface by
 Christopher Armstrong.
 
-1.25 Noteworthy changes in version '0.10.3'
+1.28 Noteworthy changes in version ‘0.10.3’
 ===========================================
 
 Fixes.  A lot of Cairo backend work.
 
-1.26 Noteworthy changes in version '0.10.2'
+1.29 Noteworthy changes in version ‘0.10.2’
 ===========================================
 
 The Backend can set UTF8 window titles where this is allowed.
 
-1.27 Noteworthy changes in version '0.10.1'
+1.30 Noteworthy changes in version ‘0.10.1’
 ===========================================
 
 The art graphics module is the default now.  As was previously the case,
@@ -228,69 +259,69 @@ Cairo library before it will work with GNUstep.  Due to this, this
 module is still considered beta.  Ask on the mailing lists for help with
 this.
 
-1.28 Noteworthy changes in version '0.10.0'
+1.31 Noteworthy changes in version ‘0.10.0’
 ===========================================
 
 The installed name of the backend now includes an interface version
 number.  This avoids the potential version mismatch between the frontend
 (GUI) library and the backend.
 
-   * Alpha blending was implemented for Windows, although it does not
+   • Alpha blending was implemented for Windows, although it does not
      seem to work on some machines.
 
-1.29 Noteworthy changes in version '0.9.5'
+1.32 Noteworthy changes in version ‘0.9.5’
 ==========================================
 
-   * Added support for window alpha on X servers.
-   * Add support for old and new freetype libs.
-   * Some improvements to the Windows backend.
+   • Added support for window alpha on X servers.
+   • Add support for old and new freetype libs.
+   • Some improvements to the Windows backend.
 
-1.30 Noteworthy changes in version '0.9.4'
+1.33 Noteworthy changes in version ‘0.9.4’
 ==========================================
 
-   * Fast drawing on 8 bit displays was added (although it might only
+   • Fast drawing on 8 bit displays was added (although it might only
      speed things up on old X11 servers and/or remote servers).
-   * GNUstep modifier keys are mapped to KeySyms instead of KeyCodes
-   * Added a Cairo backend, although it is probably non-functional.
+   • GNUstep modifier keys are mapped to KeySyms instead of KeyCodes
+   • Added a Cairo backend, although it is probably non-functional.
      Anyone is invited to contribute to making it work.
-   * art backend supports reading from a window.
-   * Add internal window decoration handling.
+   • art backend supports reading from a window.
+   • Add internal window decoration handling.
 
-1.31 Noteworthy changes in version '0.9.3'
+1.34 Noteworthy changes in version ‘0.9.3’
 ==========================================
 
-   * A number of W32 window event enhancements
-   * art backend glyph drawing with alpha enhancements.
-   * libwraster is no longer checked for - image functions now in
+   • A number of W32 window event enhancements
+   • art backend glyph drawing with alpha enhancements.
+   • libwraster is no longer checked for - image functions now in
      frontend
 
-1.32 Noteworthy changes in version '0.9.2'
+1.35 Noteworthy changes in version ‘0.9.2’
 ==========================================
 
-   * Art backend added support for grayscale, one-isblack colorspaces.
-   * Windows pasteboard interaction handling added.
-   * Better focus handling on Windows.
-   * Better font and draw handling on Windows.
+   • Art backend added support for grayscale, one-isblack colorspaces.
+   • Windows pasteboard interaction handling added.
+   • Better focus handling on Windows.
+   • Better font and draw handling on Windows.
 
-1.33 Noteworthy changes in version '0.9.1'
+1.36 Noteworthy changes in version ‘0.9.1’
 ==========================================
 
 Color on 8 bit displays works correctly now.  WindowMaker properties are
 always set now in case another manager is emulating WindowMaker styles.
 
-1.34 Noteworthy changes in version '0.9.0'
+1.37 Noteworthy changes in version ‘0.9.0’
 ==========================================
 
 Some more improvements to copy/paste support following ICCCM
 specifications (like COMPOUND_TEXT support).
 
-1.35 Noteworthy changes in version '0.8.9'
+1.38 Noteworthy changes in version ‘0.8.9’
 ==========================================
 
-   * Much improved pasting support between X apps and GNUstep apps.
-   * Backend headers are no longer installed (now private).
+   • Much improved pasting support between X apps and GNUstep apps.
+   • Backend headers are no longer installed (now private).
 
-1.36 Noteworthy changes in version '0.8.8'
+1.39 Noteworthy changes in version ‘0.8.8’
 ==========================================
 
 Full multi-byte/unicode support for East Asian languages was added to
@@ -298,60 +329,60 @@ the xlib backend.  The X11 server now supports use of the XIM input
 method for entering non-keyboard characters.  Both contributions thanks
 to Kazunobu Kuriyama.
 
-   * Also added slightly better EWMH support.
-   * Art backend works with more versions of freetype.
+   • Also added slightly better EWMH support.
+   • Art backend works with more versions of freetype.
 
-1.37 Noteworthy changes in version '0.8.7'
+1.40 Noteworthy changes in version ‘0.8.7’
 ==========================================
 
 Handle NSBezierPath glyph drawing in art backend.  art backend compiles
 with all freetype except 2.1.3 via ifdefs.
 
-1.38 Noteworthy changes in version '0.8.6'
+1.41 Noteworthy changes in version ‘0.8.6’
 ==========================================
 
 Bug fixes.  See the gnustep-gui NEWS for changes.
 
-1.39 Noteworthy changes in version '0.8.5'
+1.42 Noteworthy changes in version ‘0.8.5’
 ==========================================
 
 Text system improvements.  See the gnustep-gui NEWS for changes.
 
-1.40 Noteworthy changes in version '0.8.3'
+1.43 Noteworthy changes in version ‘0.8.3’
 ==========================================
 
 See the gnustep-gui NEWS for changes.
 
-1.41 Noteworthy changes in version '0.8.2'
+1.44 Noteworthy changes in version ‘0.8.2’
 ==========================================
 
 Improved font handling in art backend.  Improved compositing with
 transformations and clipping in art backend.
 
-1.42 Noteworthy changes in version '0.8.1'
+1.45 Noteworthy changes in version ‘0.8.1’
 ==========================================
 
 art (libart-based) backend added.  Use ./configure -enable-graphics=art
 to choose this backend.
 
-1.43 Noteworthy changes in version '0.8.0'
+1.46 Noteworthy changes in version ‘0.8.0’
 ==========================================
 
 Bug fixes.
 
-1.44 Noteworthy changes in version '0.7.9'
+1.47 Noteworthy changes in version ‘0.7.9’
 ==========================================
 
 Bug fixes.
 
-1.45 Noteworthy changes in version '0.7.8'
+1.48 Noteworthy changes in version ‘0.7.8’
 ==========================================
 
 Simplified backend selection using -enable-server and -enable-graphics.
 Add -with-library-flags and -with-include-flags for adding additonal
 flags.  Set name with -with-name
 
-1.46 Noteworthy changes in version '0.7.7'
+1.49 Noteworthy changes in version ‘0.7.7’
 ==========================================
 
 First release.  Most components extracted from xgps.  The old backends,

README

@@ -1,23 +1,23 @@
 1 README
 ********
 
-This is version 0.29.0 of the GNUstep GUI Backend ('gnustep-back').
+This is version 0.32.0 of the GNUstep GUI Backend (‘gnustep-back’).
 
    Here is some introductory info to get you started:
 
 1.1 Initial reading
 ===================
 
-   * The file 'ANNOUNCE' contains a very brief overview of the library.
+   • The file ‘ANNOUNCE’ contains a very brief overview of the library.
      It also tells you where to get the most recent version.
 
-   * The file 'NEWS' has the library's feature history.
+   • The file ‘NEWS’ has the library's feature history.
 
-   * The file 'INSTALL' gives instructions for installing the library.
+   • The file ‘INSTALL’ gives instructions for installing the library.
 
 1.2 How can you help?
 =====================
 
-   * Give us feedback!  Tell us what you like; tell us what you think
+   • Give us feedback!  Tell us what you like; tell us what you think
      could be better.  Send us bug reports at <bug-gnustep@gnu.org>.
 

Source/GNUmakefile

@@ -43,7 +43,7 @@ endif
 #
 # The list of subproject directories
 #
-SUBPROJECTS = gsc $(BUILD_SERVER) $(BUILD_GRAPHICS)
+SUBPROJECTS = $(sort gsc $(BUILD_SERVER) $(BUILD_GRAPHICS))
 
 libgnustep-$(BACKEND_FULL)_SUBPROJECTS=$(SUBPROJECTS)
 

Source/GSBackend.m

@@ -50,6 +50,11 @@
 @interface WaylandServer (Initialize)
 + (void) initializeBackend;
 @end
+#elif BUILD_SERVER == SERVER_headless
+#include <headless/HeadlessServer.h>
+@interface HeadlessServer (Initialize)
++ (void) initializeBackend;
+@end
 #endif
 
 /* Call the correct initalization routines for the choosen
@@ -70,6 +75,8 @@
   [WIN32Server initializeBackend];
 #elif BUILD_SERVER == SERVER_wayland
   [WaylandServer initializeBackend];
+#elif BUILD_SERVER == SERVER_headless
+  [HeadlessServer initializeBackend];
 #else
   [NSException raise: NSInternalInconsistencyException
 	       format: @"No Window Server configured in backend"];
@@ -96,6 +103,8 @@
     context = @"CairoContext";
 #elif (BUILD_GRAPHICS==GRAPHICS_opal)
     context = @"OpalContext";
+#elif (BUILD_GRAPHICS==GRAPHICS_headless)
+    context = @"HeadlessContext";    
 #else
 #error INVALID build graphics type
 #endif

Source/cairo/CairoContext.m

@@ -105,6 +105,16 @@
   return YES;
 }
 
+- (id) initWithContextInfo: (NSDictionary *)info
+{
+  self = [super initWithContextInfo: info];
+  if (self)
+    {
+      [self setImageInterpolation: NSImageInterpolationDefault];
+    }
+  return self;
+}
+
 - (BOOL) isDrawingToScreen
 {
   CairoSurface *surface = nil;

Source/fontconfig/FCFontEnumerator.m

@@ -163,11 +163,20 @@ static NSArray *faFromFc(FcPattern *pat)
   float nsweight;
   unsigned int nstraits = 0;
   char *fcfamily, *fcstyle;
-  NSMutableString *name, *family, *style;
+  NSString *styleStr = nil;
+  NSString *name = nil;
+  NSMutableString *family, *style;
 #ifdef FC_POSTSCRIPT_NAME
   char *fcname;
 #endif
 
+  if (FcPatternGetString(pat, FC_STYLE, 0, (FcChar8 **)&fcstyle) == FcResultMatch)
+    {
+      styleStr = [NSString stringWithUTF8String: fcstyle];
+    }
+
+//  NSLog (@"family: %@, style: %s/%@", name, fcstyle, style);
+
   if (FcPatternGetInteger(pat, FC_WEIGHT, 0, &weight) != FcResultMatch
     || FcPatternGetInteger(pat, FC_SLANT,  0, &slant) != FcResultMatch
     || FcPatternGetString(pat, FC_FAMILY, 0, (FcChar8 **)&fcfamily)
@@ -178,12 +187,6 @@ static NSArray *faFromFc(FcPattern *pat)
     if (spacing==FC_MONO || spacing==FC_CHARCELL)
       nstraits |= NSFixedPitchFontMask;
 
-  name = [NSMutableString stringWithCapacity: 100];
-#ifdef FC_POSTSCRIPT_NAME
-  if (FcPatternGetString(pat, FC_POSTSCRIPT_NAME,  0, (FcChar8 **)&fcname) == FcResultMatch)
-    [name appendString: [NSMutableString stringWithUTF8String: fcname]];
-#endif
-
   family = [NSMutableString stringWithUTF8String: fcfamily];
   style = [NSMutableString stringWithCapacity: 100];
 
@@ -303,28 +306,40 @@ static NSArray *faFromFc(FcPattern *pat)
         break;
     }
 
-  if (![name length])	// no psname
+  if (styleStr == nil)
     {
-      NSDebugLLog(@"NSFont", @"Warning: synthesizing PSName for '%@ %@'", family, style);
-      [name appendString: family];
-      if ([style length] > 0)
+      styleStr = (NSString *)style;
+    }
+
+  if (![styleStr length])
+    {
+      styleStr =  @"Regular";
+    }
+
+#ifdef FC_POSTSCRIPT_NAME
+  if (FcPatternGetString(pat, FC_POSTSCRIPT_NAME,  0, (FcChar8 **)&fcname) == FcResultMatch)
+    {
+      name = [NSString stringWithUTF8String: fcname];
+    }
+#endif
+
+  if (!name || ![name length])	// no psname
+    {
+      NSMutableString *tmpStr;
+
+      tmpStr = [NSMutableString stringWithCapacity: 100];
+      NSDebugLLog(@"NSFont", @"Warning: synthesizing PSName for '%@ %@'", family, styleStr);
+      [tmpStr appendString: family];
+      if ([styleStr length] > 0 && ![styleStr isEqualToString: @"Regular"])
         {
-          [name appendString: @"-"];
-          [name appendString: style];
-        }
+          [tmpStr appendString: @"-"];
+          [tmpStr appendString: styleStr];
+	}
+      name = [NSString stringWithString: tmpStr];
     }
 
-  if (![style length])
-    {
-      [style setString: @"Regular"];
-    }
-
-  if (FcPatternGetString(pat, FC_STYLE, 0, (FcChar8 **)&fcstyle) == FcResultMatch)
-    style = [NSString stringWithUTF8String: fcstyle];
-
-//  NSLog (@"family: %@, style: %s/%@", name, fcstyle, style);
   return [NSArray arrayWithObjects: name, 
-		  style, 
+		  styleStr,
 		  [NSNumber numberWithFloat: nsweight],
 		  [NSNumber numberWithUnsignedInt: nstraits],
 		  nil];

Source/headless/GNUmakefile

@@ -0,0 +1,48 @@
+#
+#  Main makefile for GNUstep Headless Backend
+#
+#  Copyright (C) 2002 Free Software Foundation, Inc.
+#
+#  Author: Adam Fedor <fedor@gnu.org>
+#
+#  This file is part of the GNUstep Backend.
+#
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation; either
+#  version 2 of the License, or (at your option) any later version.
+#
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the GNU
+#  Lesser General Public License for more details.
+#
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; see the file COPYING.LIB.
+#  If not, see <http://www.gnu.org/licenses/> or write to the 
+#  Free Software Foundation, 51 Franklin Street, Fifth Floor, 
+
+PACKAGE_NAME = gnustep-back
+GNUSTEP_LOCAL_ADDITIONAL_MAKEFILES=../../back.make
+
+include $(GNUSTEP_MAKEFILES)/common.make
+
+include ../../config.make
+
+# The library to be compiled, as a library or as a bundle
+SUBPROJECT_NAME=headless
+
+# The Objective-C source files to be compiled
+headless_OBJC_FILES = \
+HeadlessContext.m \
+HeadlessServer.m \
+HeadlessFontInfo.m \
+HeadlessFontEnumerator.m \
+HeadlessFaceInfo.m \
+HeadlessGState.m
+
+-include GNUmakefile.preamble
+
+include $(GNUSTEP_MAKEFILES)/subproject.make
+
+-include GNUmakefile.postamble

Source/headless/GNUmakefile.preamble

@@ -0,0 +1,51 @@
+#
+#  GNUmakefile.preamble
+#
+#  Copyright (C) 2002 Free Software Foundation, Inc.
+#
+#  Author: Adam Fedor <fedor@gnu.org>
+#
+#  This file is part of the GNUstep Backend.
+#
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation; either
+#  version 2 of the License, or (at your option) any later version.
+#
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the GNU
+#  Lesser General Public License for more details.
+#
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; see the file COPYING.LIB.
+#  If not, see <http://www.gnu.org/licenses/> or write to the 
+#  Free Software Foundation, 51 Franklin Street, Fifth Floor, 
+#  Boston, MA 02110-1301, USA.
+
+#
+# Flags dealing with compiling and linking
+#
+
+# Additional flags to pass to the preprocessor
+ADDITIONAL_CPPFLAGS += -Wall $(CONFIG_SYSTEM_DEFS)
+
+# Additional flags to pass to the Objective-C compiler
+ADDITIONAL_OBJCFLAGS = 
+
+# Additional flags to pass to the C compiler
+ADDITIONAL_CFLAGS = 
+
+# Additional include directories the compiler should search
+ADDITIONAL_INCLUDE_DIRS += -I../../Headers \
+	-I../$(GNUSTEP_TARGET_DIR) $(GRAPHIC_CFLAGS)
+
+# Additional LDFLAGS to pass to the linker
+ADDITIONAL_LDFLAGS =
+
+# Additional library directories the linker should search
+ADDITIONAL_LIB_DIRS =
+
+#
+# Flags dealing with installing and uninstalling
+#

Source/headless/HeadlessContext.m

@@ -0,0 +1,45 @@
+/*
+   HeadlessContext.m
+
+   Copyright (C) 2003, 2023 Free Software Foundation, Inc.
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; see the file COPYING.LIB.
+   If not, see <http://www.gnu.org/licenses/> or write to the 
+   Free Software Foundation, 51 Franklin Street, Fifth Floor, 
+   Boston, MA 02110-1301, USA.
+*/
+
+#include "config.h"
+
+#include "headless/HeadlessContext.h"
+#include "headless/HeadlessFontInfo.h"
+#include "headless/HeadlessFontEnumerator.h"
+#include "headless/HeadlessGState.h"
+
+@implementation HeadlessContext
+
++ (void) initializeBackend
+{
+  [NSGraphicsContext setDefaultContextClass: self];
+
+  [GSFontEnumerator setDefaultClass: [HeadlessFontEnumerator class]];
+  [GSFontInfo setDefaultClass: [HeadlessFontInfo class]];
+}
+
++ (Class) GStateClass
+{
+  return [HeadlessGState class];
+}
+
+@end

Source/headless/HeadlessFaceInfo.m

@@ -0,0 +1,44 @@
+/*
+   HeadlessFaceInfo.m
+
+   Copyright (C) 2003, 2023 Free Software Foundation, Inc.
+
+   Based on work by: Marcian Lytwyn <gnustep@advcsi.com> for Keysight
+   Based on work by: Banlu Kemiyatorn <object at gmail dot com>
+   Based on work by: Alex Malmberg
+   Based on work by: Fred Kiefer <fredkiefer@gmx.de>
+
+   This file is part of GNUstep.
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; see the file COPYING.LIB.
+   If not, see <http://www.gnu.org/licenses/> or write to the 
+   Free Software Foundation, 51 Franklin Street, Fifth Floor, 
+   Boston, MA 02110-1301, USA.
+*/
+
+#include "headless/HeadlessFaceInfo.h"
+
+@implementation HeadlessFaceInfo
+
+- (void) dealloc
+{
+  [super dealloc];
+}
+
+- (void *)fontFace
+{
+  return _fontFace;
+}
+
+@end

Source/headless/HeadlessFontEnumerator.m

@@ -0,0 +1,47 @@
+/*
+   HeadlessFontEnumerator.m
+
+   Copyright (C) 2003, 2023 Free Software Foundation, Inc.
+
+   Based on work by: Marcian Lytwyn <gnustep@advcsi.com> for Keysight
+   Based on work by: Banlu Kemiyatorn <object at gmail dot com>
+   Based on work by: Alex Malmberg
+   Based on work by: Fred Kiefer <fredkiefer@gmx.de>
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; see the file COPYING.LIB.
+   If not, see <http://www.gnu.org/licenses/> or write to the 
+   Free Software Foundation, 51 Franklin Street, Fifth Floor, 
+   Boston, MA 02110-1301, USA.
+*/
+
+#include "headless/HeadlessFontEnumerator.h"
+#include "headless/HeadlessFontInfo.h"
+
+@implementation HeadlessFontEnumerator
+
++ (Class) faceInfoClass
+{
+  return [HeadlessFaceInfo class];
+}
+
++ (HeadlessFaceInfo *) fontWithName: (NSString *) name
+{
+  return (HeadlessFaceInfo *) [super fontWithName: name];
+}
+
+- (void)enumerateFontsAndFamilies
+{
+}
+
+@end

Source/headless/HeadlessFontInfo.m

@@ -0,0 +1,87 @@
+/*
+   HeadlessFontInfo.m
+
+   Copyright (C) 2003, 2023 Free Software Foundation, Inc.
+
+   Based on work by: Marcian Lytwyn <gnustep@advcsi.com> for Keysight
+   Based on work by: Banlu Kemiyatorn <object at gmail dot com>
+   Based on work by: Alex Malmberg
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; see the file COPYING.LIB.
+   If not, see <http://www.gnu.org/licenses/> or write to the 
+   Free Software Foundation, 51 Franklin Street, Fifth Floor, 
+   Boston, MA 02110-1301, USA.
+*/
+
+#include "GNUstepBase/Unicode.h"
+#include <AppKit/NSAffineTransform.h>
+#include <AppKit/NSBezierPath.h>
+#include "headless/HeadlessFontInfo.h"
+#include "headless/HeadlessFontEnumerator.h"
+
+#include <math.h>
+
+@implementation HeadlessFontInfo
+
+- (id) initWithFontName: (NSString *)name
+		 matrix: (const CGFloat *)fmatrix
+	     screenFont: (BOOL)p_screenFont
+{
+  self = [super init];
+  if (!self)
+    return nil;
+
+#ifndef _MSC_VER
+  // Accessing instance variables across module boundaries is not supported by the Visual Studio
+  // toolchain; this could be implemented using e.g. setFontName: and setMatrix: method on the
+  // base case. 
+  fontName = [name copy];
+  memcpy(matrix, fmatrix, sizeof(matrix));
+#endif
+
+  return self;
+}
+
+- (void) dealloc
+{
+  [super dealloc];
+}
+
+- (BOOL) glyphIsEncoded: (NSGlyph)glyph
+{
+  return NO;
+}
+
+- (NSSize) advancementForGlyph: (NSGlyph)glyph
+{
+  return NSZeroSize;
+}
+
+- (NSRect) boundingRectForGlyph: (NSGlyph)glyph
+{
+  return NSZeroRect;
+}
+
+- (CGFloat) widthOfString: (NSString *)string
+{
+  return 0.0;
+}
+
+- (void) appendBezierPathWithGlyphs: (NSGlyph *)glyphs
+			      count: (int)length
+		       toBezierPath: (NSBezierPath *)path
+{
+}
+
+@end

Source/headless/HeadlessGState.m

@@ -0,0 +1,72 @@
+/*
+   HeadlessGState.m
+
+   Copyright (C) 2003, 2023 Free Software Foundation, Inc.
+
+   Based on work by: Marcian Lytwyn <gnustep@advcsi.com> for Keysight
+   Based on work by: Banlu Kemiyatorn <object at gmail dot com>
+   Based on work by: Fred Kiefer <fredkiefer@gmx.de>
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; see the file COPYING.LIB.
+   If not, see <http://www.gnu.org/licenses/> or write to the 
+   Free Software Foundation, 51 Franklin Street, Fifth Floor, 
+   Boston, MA 02110-1301, USA.
+*/
+
+#include "headless/HeadlessGState.h"
+
+@implementation HeadlessGState
+
+- (void) DPSclip
+{
+}
+
+- (void) DPSfill
+{
+}
+
+- (void) DPSsetlinewidth: (CGFloat)width
+{
+}
+
+- (void) DPSsetdash: (const CGFloat *)pat : (NSInteger)size : (CGFloat)foffset
+{
+}
+
+- (void) DPSimage: (NSAffineTransform *)matrix : (NSInteger)pixelsWide
+		 : (NSInteger)pixelsHigh : (NSInteger)bitsPerSample
+		 : (NSInteger)samplesPerPixel : (NSInteger)bitsPerPixel
+		 : (NSInteger)bytesPerRow : (BOOL)isPlanar
+		 : (BOOL)hasAlpha : (NSString *)colorSpaceName
+		 : (const unsigned char *const[5])data
+{
+}
+
+- (void) DPSstroke
+{
+}
+
+- (void) compositerect: (NSRect)aRect op: (NSCompositingOperation)op
+{
+}
+
+- (void) compositeGState: (HeadlessGState *)source
+		fromRect: (NSRect)srcRect
+		 toPoint: (NSPoint)destPoint
+		      op: (NSCompositingOperation)op
+		fraction: (CGFloat)delta
+{
+}
+
+@end

Source/headless/HeadlessServer.m

@@ -0,0 +1,115 @@
+/*
+   HeadlessServer.m
+
+   Copyright (C) 1998,2002,2023 Free Software Foundation, Inc.
+
+   Based on work by: Marcian Lytwyn <gnustep@advcsi.com> for Keysight
+   Based on work by: Adam Fedor <fedor@gnu.org>
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; see the file COPYING.LIB.
+   If not, see <http://www.gnu.org/licenses/> or write to the 
+   Free Software Foundation, 51 Franklin Street, Fifth Floor, 
+   Boston, MA 02110-1301, USA.
+*/
+
+#include "config.h"
+
+#include <AppKit/NSApplication.h>
+#include <Foundation/NSDebug.h>
+#include <Foundation/NSValue.h>
+
+#include "headless/HeadlessServer.h"
+
+/* Terminate cleanly if we get a signal to do so */
+static void
+terminate(int sig)
+{
+  if (nil != NSApp)
+    {
+      [NSApp terminate: NSApp];
+    }
+  else
+    {
+      exit(1);
+    }
+}
+
+@implementation HeadlessServer
+
+/* Initialize AppKit backend */
++ (void) initializeBackend
+{
+  NSDebugLog(@"Initializing GNUstep headless backend.\n");
+  [GSDisplayServer setDefaultServerClass: [HeadlessServer class]];
+  signal(SIGTERM, terminate);
+  signal(SIGINT, terminate);
+}
+
+- (NSArray *)screenList
+{
+  NSDebugLog(@"GNUstep headless - fetching screen list");
+  NSMutableArray *screens = [NSMutableArray arrayWithCapacity: 1];
+  [screens addObject: [NSNumber numberWithInt: 1]];
+
+  return screens;
+}
+
+- (NSRect) boundsForScreen: (int)screen
+{
+ return NSMakeRect(0, 0, 400, 400);
+}
+
+- (NSWindowDepth) windowDepthForScreen: (int) screen_num
+{
+  return 0;
+}
+
+- (void) styleoffsets: (float *) l : (float *) r : (float *) t : (float *) b
+		     : (unsigned int) style
+{
+}
+
+- (void) standardcursor: (int)style : (void **)cid
+{
+}
+
+
+- (int) window: (NSRect)frame
+		    : (NSBackingStoreType)type
+		    : (unsigned int)style
+		    : (int)screen
+{
+    return 1;
+}
+
+- (void) setwindowlevel: (int)level : (int)win
+{
+}
+
+- (void) setWindowdevice: (int)win forContext: (NSGraphicsContext *)ctxt
+{
+}
+
+- (void) orderwindow: (int)op : (int)otherWin : (int)winNum
+{
+}
+
+- (void) setinputfocus: (int)win
+{
+}
+
+- (void) imagecursor: (NSPoint)hotp : (NSImage *)image : (void **)cid
+{
+}
+@end

Source/wayland/WaylandServer+Cursor.m

@@ -38,6 +38,8 @@
 #include <linux/input.h>
 #include "wayland-cursor.h"
 
+extern void wl_cursor_destroy(struct wl_cursor *cursor);
+
 // XXX should this be configurable by the user?
 #define DOUBLECLICK_DELAY 300
 #define DOUBLECLICK_MOVE_THREASHOLD 3
@@ -852,4 +854,4 @@ WaylandServer (Cursor)
       wlconfig->mouse_scroll_multiplier = 1.0f;
     }
 }
-@end
+@end

Source/wayland/WaylandServer+Keyboard.m

@@ -31,6 +31,7 @@
 #include <linux/input.h>
 #include <AppKit/NSText.h>
 #include <sys/mman.h>
+#include <unistd.h>
 
 static void
 keyboard_handle_keymap(void *data, struct wl_keyboard *keyboard,

Source/wayland/WaylandServer+Xdgshell.m

@@ -28,10 +28,11 @@
 #include "wayland/WaylandServer.h"
 #include <AppKit/NSEvent.h>
 #include <AppKit/NSApplication.h>
+#include <AppKit/NSGraphics.h>
 
 static void
 xdg_surface_on_configure(void *data, struct xdg_surface *xdg_surface,
-			 uint32_t serial)
+                         uint32_t serial)
 {
   struct window *window = data;
 
@@ -43,7 +44,6 @@ xdg_surface_on_configure(void *data, struct xdg_surface *xdg_surface,
       free(window);
       return;
     }
-  WaylandConfig *wlconfig = window->wlconfig;
 
   NSEvent  *ev = nil;
   NSWindow *nswindow = GSWindowWithNumber(window->window_id);
@@ -57,22 +57,22 @@ xdg_surface_on_configure(void *data, struct xdg_surface *xdg_surface,
   if (window->buffer_needs_attach)
     {
       [window->instance flushwindowrect:NSMakeRect(window->pos_x, window->pos_y,
-						   window->width, window->height
-						   ):window->window_id];
+                                                   window->width, window->height)
+                                      :window->window_id];
     }
 
-  if (wlconfig->pointer.focus
-      && wlconfig->pointer.focus->window_id == window->window_id)
+  if (window->wlconfig->pointer.focus
+      && window->wlconfig->pointer.focus->window_id == window->window_id)
     {
       ev = [NSEvent otherEventWithType:NSAppKitDefined
-			      location:NSZeroPoint
-			 modifierFlags:0
-			     timestamp:0
-			  windowNumber:(int) window->window_id
-			       context:GSCurrentContext()
-			       subtype:GSAppKitWindowFocusIn
-				 data1:0
-				 data2:0];
+                              location:NSZeroPoint
+                         modifierFlags:0
+                             timestamp:0
+                          windowNumber:(int) window->window_id
+                               context:GSCurrentContext()
+                               subtype:GSAppKitWindowFocusIn
+                                 data1:0
+                                 data2:0];
 
       [nswindow sendEvent:ev];
     }
@@ -80,15 +80,14 @@ xdg_surface_on_configure(void *data, struct xdg_surface *xdg_surface,
 
 static void
 xdg_toplevel_configure(void *data, struct xdg_toplevel *xdg_toplevel,
-		       int32_t width, int32_t height, struct wl_array *states)
+                       int32_t width, int32_t height, struct wl_array *states)
 {
   struct window *window = data;
-  WaylandConfig *wlconfig = window->wlconfig;
 
-  NSDebugLog(@"[%d] xdg_toplevel_configure %ldx%ld", window->window_id, width,
-	     height);
+  NSDebugLog(@"[%d] xdg_toplevel_configure %dx%d", window->window_id, width,
+             height);
 
-  // the compositor can send 0.0x0.0
+  // The compositor can send 0x0
   if (width == 0 || height == 0)
     {
       return;
@@ -99,45 +98,43 @@ xdg_toplevel_configure(void *data, struct xdg_toplevel *xdg_toplevel,
       window->height = height;
 
       xdg_surface_set_window_geometry(window->xdg_surface, 0, 0, window->width,
-				      window->height);
+                                      window->height);
 
       NSEvent *ev = [NSEvent otherEventWithType:NSAppKitDefined
-				       location:NSMakePoint(0.0, 0.0)
-				  modifierFlags:0
-				      timestamp:0
-				   windowNumber:window->window_id
-					context:GSCurrentContext()
-					subtype:GSAppKitWindowResized
-					  data1:window->width
-					  data2:window->height];
+                                       location:NSMakePoint(0.0, 0.0)
+                                  modifierFlags:0
+                                      timestamp:0
+                                   windowNumber:window->window_id
+                                        context:GSCurrentContext()
+                                        subtype:GSAppKitWindowResized
+                                          data1:window->width
+                                          data2:window->height];
       [(GSWindowWithNumber(window->window_id)) sendEvent:ev];
     }
-  NSDebugLog(@"[%d] notify resize from backend=%ldx%ld", window->window_id,
-	     width, height);
+  NSDebugLog(@"[%d] notify resize from backend=%dx%d", window->window_id,
+             width, height);
 }
 
 static void
-xdg_toplevel_close_handler(void *data, struct zxdg_toplevel_v6 *xdg_toplevel)
+xdg_toplevel_close_handler(void *data, struct xdg_toplevel *xdg_toplevel)
 {
   NSDebugLog(@"xdg_toplevel_close_handler");
 }
 
 static void
 xdg_popup_configure(void *data, struct xdg_popup *xdg_popup, int32_t x,
-		    int32_t y, int32_t width, int32_t height)
+                    int32_t y, int32_t width, int32_t height)
 {
   struct window *window = data;
-  WaylandConfig *wlconfig = window->wlconfig;
 
   NSDebugLog(@"[%d] xdg_popup_configure [%d,%d %dx%d]", window->window_id, x, y,
-	     width, height);
+             width, height);
 }
 
 static void
 xdg_popup_done(void *data, struct xdg_popup *xdg_popup)
 {
   struct window *window = data;
-  WaylandConfig *wlconfig = window->wlconfig;
   window->terminated = YES;
   xdg_popup_destroy(xdg_popup);
   wl_surface_destroy(window->surface);
@@ -145,7 +142,7 @@ xdg_popup_done(void *data, struct xdg_popup *xdg_popup)
 
 static void
 wm_base_handle_ping(void *data, struct xdg_wm_base *xdg_wm_base,
-		    uint32_t serial)
+                    uint32_t serial)
 {
   NSDebugLog(@"wm_base_handle_ping");
   xdg_wm_base_pong(xdg_wm_base, serial);
@@ -167,4 +164,4 @@ const struct xdg_popup_listener xdg_popup_listener = {
 const struct xdg_toplevel_listener xdg_toplevel_listener = {
   .configure = xdg_toplevel_configure,
   .close = xdg_toplevel_close_handler,
-};
+};

Source/wayland/WaylandServer.m

@@ -781,7 +781,7 @@ WaylandServer (SurfaceRoles)
       break;
     case NSPopUpMenuWindowLevel:
       NSDebugLog(@"[%d] NSPopUpMenuWindowLevel", win);
-      [self createPopup:win];
+      [self createPopup:window];
       break;
     case NSScreenSaverWindowLevel:
       NSDebugLog(@"[%d] NSScreenSaverWindowLevel", win);
@@ -1099,4 +1099,4 @@ WaylandServer (SurfaceRoles)
   wl_display_flush(window->wlconfig->display);
 }
 
-@end
+@end

Source/win32/WIN32Server.m

@@ -63,6 +63,18 @@
 
 #include <math.h>
 
+// The Windows SDK declares BOOL as an int.  Objective C defines BOOl as a char.
+// Those two types clash.  MinGW's implementation of the Windows SDK uses the WINBOOL
+// type to avoid this clash.  When compiling natively on Windows, we need to manually
+// define WINBOOL.
+// MinGW will define _DEF_WINBOOL_ if it has defined WINBOOL so we can use the same trick
+// here.
+// See https://github.com/mingw-w64/mingw-w64/blob/master/mingw-w64-headers/include/ntdef.h#L355
+#ifndef _DEF_WINBOOL_
+#define _DEF_WINBOOL_
+typedef int WINBOOL;
+#endif
+
 // To update the cursor..
 static BOOL update_cursor = NO;
 static BOOL should_handle_cursor = NO;

Source/win32/w32_windowdisplay.m

@@ -33,6 +33,18 @@
 #include "win32/WIN32Server.h"
 #include "win32/WIN32Geometry.h"
 
+// The Windows SDK declares BOOL as an int.  Objective C defines BOOl as a char.
+// Those two types clash.  MinGW's implementation of the Windows SDK uses the WINBOOL
+// type to avoid this clash.  When compiling natively on Windows, we need to manually
+// define WINBOOL.
+// MinGW will define _DEF_WINBOOL_ if it has defined WINBOOL so we can use the same trick
+// here.
+// See https://github.com/mingw-w64/mingw-w64/blob/master/mingw-w64-headers/include/ntdef.h#L355
+#ifndef _DEF_WINBOOL_
+#define _DEF_WINBOOL_
+typedef int WINBOOL;
+#endif
+
 static void 
 invalidateWindow(WIN32Server *svr, HWND hwnd, RECT rect)
 {

Source/winlib/WIN32FontInfo.m

@@ -453,9 +453,14 @@ NSLog(@"No glyph for U%d", c);
     logfont.lfItalic = 1; 
 
   logfont.lfQuality = DEFAULT_QUALITY;
-  wcsncpy(logfont.lfFaceName,
-    (const unichar*)[familyName cStringUsingEncoding: NSUnicodeStringEncoding],
-    LF_FACESIZE);
+
+  if (familyName)
+  {
+    wcsncpy(logfont.lfFaceName,
+      (const unichar*)[familyName cStringUsingEncoding: NSUnicodeStringEncoding],
+      LF_FACESIZE);
+  }
+
   hFont = CreateFontIndirectW(&logfont);
   if (!hFont)
     {

Source/x11/XGServerWindow.m

@@ -803,6 +803,7 @@ _get_next_prop_new_event(Display *display, XEvent *event, char *arg)
   XEvent		xEvent;
   unsigned long		*extents;
   Offsets		*o = generic.offsets + (style & 15);
+  int			windowIdent;
   int			repp = 0;
   int			repx = 0;
   int			repy = 0;
@@ -1131,6 +1132,11 @@ _get_next_prop_new_event(Display *display, XEvent *event, char *arg)
         }
     }
 
+  /* Calling termwindow should cause the window to be destroyed,
+   * so we need to take a copy of the window identifier to check
+   * for events left in the queue about that window.
+   */
+  windowIdent = window->ident;
   [self termwindow: window->number];
   XSync(dpy, False);
   while (XPending(dpy) > 0)
@@ -1138,7 +1144,7 @@ _get_next_prop_new_event(Display *display, XEvent *event, char *arg)
       XNextEvent(dpy, &xEvent);
       NSDebugLLog(@"Offset", @"Destroying ... event %d window %lu\n",
                   xEvent.type, xEvent.xany.window);
-      if (xEvent.xany.window != window->ident)
+      if (xEvent.xany.window != windowIdent)
         {
           continue;
         }

Source/x11/XIMInputServer.m

@@ -151,12 +151,18 @@
     {
       /* Always returns a Latin-1 string according to the manpage */
       count = XLookupString (event, buf, BUF_LEN, &keysym, NULL);
-      if (count)
+      if (count == 1)
 	{
 	  keys = [[[NSString alloc] initWithBytes: buf
 					   length: count
 					 encoding: NSISOLatin1StringEncoding] autorelease];
 	}
+      else if (count > 1) // manpage lies and we suppose UTF-8
+	{
+	  keys = [[[NSString alloc] initWithBytes: buf
+					   length: count
+					 encoding: NSUTF8StringEncoding] autorelease];
+	}
 
       if (keysymptr)
 	*keysymptr = keysym;

Tools/gpbs.m

@@ -38,7 +38,12 @@
 #endif
 
 #include <signal.h>
+#ifdef	HAVE_UNISTD_H
 #include <unistd.h>
+#else
+#include <io.h>
+#define strcasecmp _stricmp
+#endif
 #include <ctype.h>
 
 #ifdef __MINGW__
@@ -229,7 +234,8 @@ NSMutableDictionary	*pasteboards = nil;
 {
   if (verbose)
     {
-      NSLog(@"-data for %@", self);
+      NSLog(@"-data (%llu bytes) provided for %@",
+	(unsigned long long)[data length], self);
     }
   return data;
 }
@@ -285,7 +291,8 @@ NSMutableDictionary	*pasteboards = nil;
   ASSIGN(data, d);
   if (verbose)
     {
-      NSLog(@"-setData: for %@", self);
+      NSLog(@"-setData: (%llu bytes) for %@",
+	(unsigned long long)[data length], self);
     }
 }
 
@@ -863,8 +870,8 @@ NSMutableDictionary	*pasteboards = nil;
   e = [self entryByCount: count];
   if (verbose)
     {
-      NSLog(@"%@ set data %p for type '%@' version %d in %@",
-	self, data, type, count, e);
+      NSLog(@"%@ set data %p (%llu bytes) for type '%@' version %d in %@",
+	self, data, (unsigned long long)[data length], type, count, e);
     }
   if (e)
     {

Tools/win32pbs.m

@@ -40,6 +40,18 @@
 #include <sys/file.h>
 #endif
 
+// The Windows SDK declares BOOL as an int.  Objective C defines BOOl as a char.
+// Those two types clash.  MinGW's implementation of the Windows SDK uses the WINBOOL
+// type to avoid this clash.  When compiling natively on Windows, we need to manually
+// define WINBOOL.
+// MinGW will define _DEF_WINBOOL_ if it has defined WINBOOL so we can use the same trick
+// here.
+// See https://github.com/mingw-w64/mingw-w64/blob/master/mingw-w64-headers/include/ntdef.h#L355
+#ifndef _DEF_WINBOOL_
+#define _DEF_WINBOOL_
+typedef int WINBOOL;
+#endif
+
 @interface Win32PbOwner : NSObject
 {
   NSPasteboard	*_pb;

Version

@@ -3,12 +3,12 @@
 
 # The version number of this release.
 GNUSTEP_BACK_MAJOR_VERSION=0
-GNUSTEP_BACK_MINOR_VERSION=30
+GNUSTEP_BACK_MINOR_VERSION=32
 GNUSTEP_BACK_SUBMINOR_VERSION=0
 # This numeric value should match above
-VERSION_NUMBER=030.0
+VERSION_NUMBER=032.0
 # This numeric value should match the compatible gui interface version
-INTERFACE_VERSION_NUMBER=030
+INTERFACE_VERSION_NUMBER=032
 
 GNUSTEP_BACK_VERSION=${GNUSTEP_BACK_MAJOR_VERSION}.${GNUSTEP_BACK_MINOR_VERSION}.${GNUSTEP_BACK_SUBMINOR_VERSION}
 VERSION=${GNUSTEP_BACK_VERSION}

config.h.in

@@ -1,15 +1,17 @@
 /* config.h.in.  Generated from configure.ac by autoheader.  */
 
 
-#define SERVER_x11      1
-#define SERVER_win32    2
-#define SERVER_wayland  3
-#define GRAPHICS_xdps   0
-#define GRAPHICS_art    1
-#define GRAPHICS_xlib   2
-#define GRAPHICS_winlib 3
-#define GRAPHICS_cairo  4
-#define GRAPHICS_opal   5
+#define SERVER_x11        1
+#define SERVER_win32      2
+#define SERVER_wayland    3
+#define SERVER_headless   4
+#define GRAPHICS_xdps     0
+#define GRAPHICS_art      1
+#define GRAPHICS_xlib     2
+#define GRAPHICS_winlib   3
+#define GRAPHICS_cairo    4
+#define GRAPHICS_opal     5
+#define GRAPHICS_headless 6
 
 
 /* Define to type of graphics context to build */
@@ -42,27 +44,33 @@
 /* Define to 1 if you have the <inttypes.h> header file. */
 #undef HAVE_INTTYPES_H
 
+/* Define to 1 if you have the `wayland-client' library (-lwayland-client). */
+#undef HAVE_LIBWAYLAND_CLIENT
+
 /* Define to 1 if you have the `Xext' library (-lXext). */
 #undef HAVE_LIBXEXT
 
 /* Define to 1 if you have the `Xft' library (-lXft). */
 #undef HAVE_LIBXFT
 
+/* Define to 1 if you have the `xkbcommon' library (-lxkbcommon). */
+#undef HAVE_LIBXKBCOMMON
+
 /* Define to 1 if you have the `Xmu' library (-lXmu). */
 #undef HAVE_LIBXMU
 
 /* Define to 1 if you have the `Xt' library (-lXt). */
 #undef HAVE_LIBXT
 
-/* Define to 1 if you have the <memory.h> header file. */
-#undef HAVE_MEMORY_H
-
 /* Define to 1 if you have the `shmctl' function. */
 #undef HAVE_SHMCTL
 
 /* Define to 1 if you have the <stdint.h> header file. */
 #undef HAVE_STDINT_H
 
+/* Define to 1 if you have the <stdio.h> header file. */
+#undef HAVE_STDIO_H
+
 /* Define to 1 if you have the <stdlib.h> header file. */
 #undef HAVE_STDLIB_H
 
@@ -93,6 +101,9 @@
 /* Define if you have XftDrawStringUtf8 */
 #undef HAVE_UTF8
 
+/* Define to 1 if you have the <wayland-util.h> header file. */
+#undef HAVE_WAYLAND_UTIL_H
+
 /* Define if you have the wgl library */
 #undef HAVE_WGL
 
@@ -102,6 +113,9 @@
 /* Define to 1 if you have the <X11/extensions/sync.h> header file. */
 #undef HAVE_X11_EXTENSIONS_SYNC_H
 
+/* Define to 1 if you have the <X11/extensions/Xrandr.h> header file. */
+#undef HAVE_X11_EXTENSIONS_XRANDR_H
+
 /* Define to 1 if you have the <X11/extensions/XShm.h> header file. */
 #undef HAVE_X11_EXTENSIONS_XSHM_H
 
@@ -118,15 +132,18 @@
 /* Define to 1 if you have 'XInternAtoms' function. */
 #undef HAVE_XINTERNATOMS
 
+/* Define to 1 if you have the <xkbcommon/xkbcommon.h> header file. */
+#undef HAVE_XKBCOMMON_XKBCOMMON_H
+
+/* Define to enable Xrandr support */
+#undef HAVE_XRANDR
+
 /* Define to enable Xshape support */
 #undef HAVE_XSHAPE
 
 /* Define to 1 if you have the `Xutf8LookupString' function. */
 #undef HAVE_XUTF8LOOKUPSTRING
 
-/* Define to enable Xrandr support */
-#undef HAVE_XRANDR
-
 /* Define to the address where bug reports for this package should be sent. */
 #undef PACKAGE_BUGREPORT
 
@@ -145,7 +162,9 @@
 /* Define to the version of this package. */
 #undef PACKAGE_VERSION
 
-/* Define to 1 if you have the ANSI C header files. */
+/* Define to 1 if all of the C90 standard headers exist (not just the ones
+   required in a freestanding environment). This macro is provided for
+   backward compatibility; new code need not use it. */
 #undef STDC_HEADERS
 
 /* Define to enable glitz support */

configure.ac

@@ -565,10 +565,10 @@ case $target_os in
 esac
 
 AC_ARG_ENABLE(server, 
-  [  --enable-server=SRV     Build server type: x11, win32, wayland],,
+  [  --enable-server=SRV     Build server type: x11, win32, wayland, headless],,
   enable_server=$BUILD_SERVER)
 AC_ARG_ENABLE(graphics, 
-  [  --enable-graphics=GPH   Build graphics: xlib, xdps, winlib, art, cairo, opal],,
+  [  --enable-graphics=GPH   Build graphics: xlib, xdps, winlib, art, cairo, opal, headless],,
   enable_graphics="$BUILD_GRAPHICS")
 
 BUILD_SERVER=$enable_server
@@ -658,8 +658,6 @@ if test x"$BUILD_GRAPHICS" = "xcairo"; then
       CAIRO_LIBS="$CAIRO_LIBS $XFT_LIBS"
       CAIRO_CFLAGS="$CAIRO_CFLAGS"
       LIBS="-lwayland-client -lwayland-cursor -lxkbcommon $LIBS"
-    else
-      AC_MSG_ERROR([Invalid Cairo installation])
     fi
     LIBS="$CAIRO_LIBS $LIBS"
     CPPFLAGS="$CAIRO_CFLAGS $CPPFLAGS"
@@ -717,6 +715,8 @@ elif test x"$BUILD_GRAPHICS" = "xopal"; then
     fi
     AC_MSG_NOTICE([Switching to $BUILD_GRAPHICS])
   fi
+elif test x"$BUILD_GRAPHICS" = "xheadless"; then
+ : # Nothing to do
 else
   AC_MSG_ERROR([Invalid graphics backend $BUILD_GRAPHICS])
 fi
@@ -757,15 +757,17 @@ if test $BUILD_SERVER = win32; then
 fi
 
 AH_TOP([
-#define SERVER_x11      1
-#define SERVER_win32    2
-#define SERVER_wayland  3
-#define GRAPHICS_xdps   0
-#define GRAPHICS_art    1
-#define GRAPHICS_xlib   2
-#define GRAPHICS_winlib 3
-#define GRAPHICS_cairo  4
-#define GRAPHICS_opal   5
+#define SERVER_x11        1
+#define SERVER_win32      2
+#define SERVER_wayland    3
+#define SERVER_headless   4
+#define GRAPHICS_xdps     0
+#define GRAPHICS_art      1
+#define GRAPHICS_xlib     2
+#define GRAPHICS_winlib   3
+#define GRAPHICS_cairo    4
+#define GRAPHICS_opal     5
+#define GRAPHICS_headless 6
 ])
 AC_DEFINE_UNQUOTED(BUILD_SERVER,SERVER_$BUILD_SERVER,
 	[Define to type of window server to build])