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+/* Construct a full filename from a directory and a relative filename.
+ Copyright (C) 2001-2004, 2007-2022 Free Software Foundation, Inc.
+
+ This file 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 file 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 program. If not, see <https://www.gnu.org/licenses/>. */
+
+#ifndef _CONCAT_FILENAME_H
+#define _CONCAT_FILENAME_H
+
+#include <stdlib.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/* Concatenate a directory filename, a relative filename and an optional
+ suffix. Return a freshly allocated filename. Return NULL and set errno
+ upon memory allocation failure. */
+extern char *concatenated_filename (const char *directory,
+ const char *filename, const char *suffix)
+ _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC_FREE;
+
+/* Concatenate a directory filename, a relative filename and an optional
+ suffix. Return a freshly allocated filename. */
+extern char *xconcatenated_filename (const char *directory,
+ const char *filename, const char *suffix)
+ _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC_FREE
+ _GL_ATTRIBUTE_RETURNS_NONNULL;
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _CONCAT_FILENAME_H */