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-rw-r--r--support/xdlfcn.h34
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diff --git a/support/xdlfcn.h b/support/xdlfcn.h
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+/* Support functionality for using dlopen/dlclose/dlsym.
+ Copyright (C) 2017 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C 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.
+
+ The GNU C 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 the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef SUPPORT_DLOPEN_H
+#define SUPPORT_DLOPEN_H
+
+#include <dlfcn.h>
+
+__BEGIN_DECLS
+
+/* Each of these terminates process on failure with relevant error message. */
+void *xdlopen (const char *filename, int flags);
+void *xdlsym (void *handle, const char *symbol);
+void xdlclose (void *handle);
+
+
+__END_DECLS
+
+#endif /* SUPPORT_DLOPEN_H */