Add FCFontAssetInstaller to libs-back...

.gitignore

@@ -14,3 +14,4 @@ Source/config.h
 Source/libgnustep*Info.plist
 Tools/XGCommonFont.m
 Tools/xdnd.c
+*~

Headers/cairo/CairoFontAssetInstaller.h

@@ -0,0 +1,36 @@
+/*
+   CairoFontAssetInstaller.h
+
+   Copyright (C) 2003 Free Software Foundation, Inc.
+
+   By: Gregory John Casamento <greg.casamento@gmail.com>
+   Date: October 4, 2025
+
+   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 CairoFontAssetInstaller_h
+#define CairoFontAssetInstaller_h
+
+#include "fontconfig/FCFontAssetInstaller.h"
+
+@interface CairoFontAssetInstaller : FCFontAssetInstaller
+@end
+
+#endif

Headers/fontconfig/FCFontAssetInstaller.h

@@ -0,0 +1,34 @@
+/* Interface of class FCFontAssetInstaller
+   Copyright (C) 2024 Free Software Foundation, Inc.
+
+   By: Gregory John Casamento <greg.casamento@gmail.com>
+   Date: September 5, 2025
+
+   This file is part of the GNUstep Library.
+
+   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 2.1 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; if not, write to the Free
+   Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+   Boston, MA 02110 USA.
+*/
+
+#ifndef FCFONTASSETINSTALLER_H
+#define FCFONTASSETINSTALLER_H
+
+#import <Foundation/NSObject.h>
+#import <GNUstepGUI/GSFontAssetInstaller.h>
+
+@interface FCFontAssetInstaller : GSFontAssetInstaller
+@end
+
+#endif

Source/cairo/CairoContext.m

@@ -36,6 +36,8 @@
 #include "cairo/CairoPDFSurface.h"
 #include "cairo/CairoFontInfo.h"
 #include "cairo/CairoFontEnumerator.h"
+#include "cairo/CairoFontAssetInstaller.h"
+
 #include "config.h"
 
 #define CGSTATE ((CairoGState *)gstate)
@@ -88,6 +90,7 @@ + (void) initializeBackend
 
   [GSFontEnumerator setDefaultClass: [CairoFontEnumerator class]];
   [GSFontInfo setDefaultClass: [CairoFontInfo class]];
+  [GSFontAssetInstaller setDefaultClass: [CairoFontAssetInstaller class]];
 }
 
 + (Class) GStateClass

Source/cairo/CairoFontAssetInstaller.m

@@ -0,0 +1,29 @@
+/* Implementation of class CairoFontAssetInstaller
+   Copyright (C) 2025 Free Software Foundation, Inc.
+
+   By: Gregory John Casamento <greg.casamento@gmail.com>
+   Date: October 4, 2025
+
+   This file is part of the GNUstep Library.
+
+   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 2.1 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; if not, write to the Free
+   Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+   Boston, MA 02110 USA.
+*/
+
+#import <Foundation/Foundation.h>
+#import "cairo/CairoFontAssetInstaller.h"
+
+@implementation CairoFontAssetInstaller
+@end

Source/cairo/GNUmakefile

@@ -34,12 +34,14 @@ cairo_OBJC_FILES = CairoSurface.m \
   CairoGState.m \
   CairoContext.m \
   CairoFontEnumerator.m \
+  CairoFontAssetInstaller.m \
   CairoFaceInfo.m \
   CairoPSSurface.m \
   CairoPDFSurface.m \
   ../fontconfig/FCFaceInfo.m \
   ../fontconfig/FCFontEnumerator.m \
   ../fontconfig/FCFontInfo.m \
+  ../fontconfig/FCFontAssetInstaller.m \
 
 
 ifeq ($(BUILD_SERVER),x11)