+/*
+ * Check: a unit test framework for C
+ * Copyright (C) 2001, 2002 Arien Malec
+ *
+ * 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 St, Fifth Floor, Boston,
+ * MA 02110-1301, USA.
+ */
+
+/*
+ * AC_FUNC_REALLOC in configure defines realloc to rpl_realloc if
+ * realloc (p, 0) or realloc (0, n) is NULL to provide GNU
+ * compatibility
+ */
+
+#include "libcompat.h"
+
+/* realloc has been defined to rpl_realloc, so first undo that */
+#undef realloc
+
+/* this gives us the real realloc to use below */
+void *realloc (void *p, size_t n);
+
+/* force realloc(p, 0) and realloc (NULL, n) to return a valid pointer */
+void *
+rpl_realloc (void *p, size_t n)
+{
+ if (n == 0)
+ n = 1;
+ if (p == 0)
+ return malloc (n);
+ return realloc (p, n);
+}