Add concrete implementations for backend

Author: gcasa

Headers/cairo/CairoFontAssetInstaller.h

@@ -0,0 +1,36 @@
+/*
+   CairoFontAssetInstaller.h
+
+   Copyright (C) 2003 Free Software Foundation, Inc.
+
+   By: Gregory John Casamento <[email protected]>
+   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

Source/cairo/CairoFontAssetInstaller.m

@@ -0,0 +1,29 @@
+/* Implementation of class CairoFontAssetInstaller
+   Copyright (C) 2025 Free Software Foundation, Inc.
+
+   By: Gregory John Casamento <[email protected]>
+   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