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+/* malloc() function that is glibc compatible.
+
+ Copyright (C) 1997-1998, 2006-2007, 2009-2020 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3, or (at your option)
+ any later version.
+
+ This program 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 General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, see <https://www.gnu.org/licenses/>. */
+
+/* written by Jim Meyering and Bruno Haible */
+
+#define _GL_USE_STDLIB_ALLOC 1
+#include <config.h>
+/* Only the AC_FUNC_MALLOC macro defines 'malloc' already in config.h. */
+#ifdef malloc
+# define NEED_MALLOC_GNU 1
+# undef malloc
+/* Whereas the gnulib module 'malloc-gnu' defines HAVE_MALLOC_GNU. */
+#elif GNULIB_MALLOC_GNU && !HAVE_MALLOC_GNU
+# define NEED_MALLOC_GNU 1
+#endif
+
+#include <stdlib.h>
+
+#include <errno.h>
+
+/* Allocate an N-byte block of memory from the heap.
+ If N is zero, allocate a 1-byte block. */
+
+void *
+rpl_malloc (size_t n)
+{
+ void *result;
+
+#if NEED_MALLOC_GNU
+ if (n == 0)
+ n = 1;
+#endif
+
+ result = malloc (n);
+
+#if !HAVE_MALLOC_POSIX
+ if (result == NULL)
+ errno = ENOMEM;
+#endif
+
+ return result;
+}