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diff --git a/lib/libeu_compat.h b/lib/libeu_compat.h
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+/* Interface for libeu_compat.
+ Copyright (C) 2018 The Qt Company Ltd.
+ This file is part of elfutils.
+
+ This file is free software; you can redistribute it and/or modify
+ it under the terms of either
+
+ * the GNU Lesser General Public License as published by the Free
+ Software Foundation; either version 3 of the License, or (at
+ your option) any later version
+
+ or
+
+ * the GNU General Public License as published by the Free
+ Software Foundation; either version 2 of the License, or (at
+ your option) any later version
+
+ or both in parallel, as here.
+
+ elfutils 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 copies of the GNU General Public License and
+ the GNU Lesser General Public License along with this program. If
+ not, see <http://www.gnu.org/licenses/>. */
+
+#ifndef _LIBEU_COMPAT_H
+#define _LIBEU_COMPAT_H 1
+
+#if (defined _WIN32 || defined __WIN32__)
+
+#include <io.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern char *eu_compat_demangle(const char *mangled_name, char *output_buffer,
+ size_t *length, int *status);
+
+extern int eu_compat_open(const char *, int);
+extern int eu_compat_close(int);
+
+extern void *eu_compat_malloc(size_t);
+extern void *eu_compat_realloc(void *, size_t);
+extern void *eu_compat_calloc(size_t);
+extern void eu_compat_free(void *);
+
+extern char* eu_compat_strdup(const char* string);
+
+#ifdef __cplusplus
+}
+#endif
+
+#else
+
+#include <cxxabi.h>
+#include <unistd.h>
+
+#define eu_compat_demangle abi::__cxa_demangle
+
+#define eu_compat_open open
+#define eu_compat_close close
+#define O_BINARY 0
+
+#define eu_compat_malloc malloc
+#define eu_compat_realloc realloc
+#define eu_compat_calloc calloc
+#define eu_compat_free free
+
+#define eu_compat_strdup strdup
+
+#endif
+
+#endif // _LIBEU_COMPAT_H