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diff --git a/i686-linux-gnu-4.7/usr/include/dlfcn.h b/i686-linux-gnu-4.7/usr/include/dlfcn.h
new file mode 100644
index 0000000..0921fd7
--- /dev/null
+++ b/i686-linux-gnu-4.7/usr/include/dlfcn.h
@@ -0,0 +1,190 @@
+/* User functions for run-time dynamic loading.
+   Copyright (C) 1995-2018 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	_DLFCN_H
+#define	_DLFCN_H 1
+
+#include <features.h>
+#define __need_size_t
+#include <stddef.h>
+
+/* Collect various system dependent definitions and declarations.  */
+#include <bits/dlfcn.h>
+
+
+#ifdef __USE_GNU
+/* If the first argument of `dlsym' or `dlvsym' is set to RTLD_NEXT
+   the run-time address of the symbol called NAME in the next shared
+   object is returned.  The "next" relation is defined by the order
+   the shared objects were loaded.  */
+# define RTLD_NEXT	((void *) -1l)
+
+/* If the first argument to `dlsym' or `dlvsym' is set to RTLD_DEFAULT
+   the run-time address of the symbol called NAME in the global scope
+   is returned.  */
+# define RTLD_DEFAULT	((void *) 0)
+
+
+/* Type for namespace indeces.  */
+typedef long int Lmid_t;
+
+/* Special namespace ID values.  */
+# define LM_ID_BASE	0	/* Initial namespace.  */
+# define LM_ID_NEWLM	-1	/* For dlmopen: request new namespace.  */
+#endif
+
+
+__BEGIN_DECLS
+
+/* Open the shared object FILE and map it in; return a handle that can be
+   passed to `dlsym' to get symbol values from it.  */
+extern void *dlopen (const char *__file, int __mode) __THROWNL;
+
+/* Unmap and close a shared object opened by `dlopen'.
+   The handle cannot be used again after calling `dlclose'.  */
+extern int dlclose (void *__handle) __THROWNL __nonnull ((1));
+
+/* Find the run-time address in the shared object HANDLE refers to
+   of the symbol called NAME.  */
+extern void *dlsym (void *__restrict __handle,
+		    const char *__restrict __name) __THROW __nonnull ((2));
+
+#ifdef __USE_GNU
+/* Like `dlopen', but request object to be allocated in a new namespace.  */
+extern void *dlmopen (Lmid_t __nsid, const char *__file, int __mode) __THROWNL;
+
+/* Find the run-time address in the shared object HANDLE refers to
+   of the symbol called NAME with VERSION.  */
+extern void *dlvsym (void *__restrict __handle,
+		     const char *__restrict __name,
+		     const char *__restrict __version)
+     __THROW __nonnull ((2, 3));
+#endif
+
+/* When any of the above functions fails, call this function
+   to return a string describing the error.  Each call resets
+   the error string so that a following call returns null.  */
+extern char *dlerror (void) __THROW;
+
+
+#ifdef __USE_GNU
+/* Structure containing information about object searched using
+   `dladdr'.  */
+typedef struct
+{
+  const char *dli_fname;	/* File name of defining object.  */
+  void *dli_fbase;		/* Load address of that object.  */
+  const char *dli_sname;	/* Name of nearest symbol.  */
+  void *dli_saddr;		/* Exact value of nearest symbol.  */
+} Dl_info;
+
+/* Fill in *INFO with the following information about ADDRESS.
+   Returns 0 iff no shared object's segments contain that address.  */
+extern int dladdr (const void *__address, Dl_info *__info)
+     __THROW __nonnull ((2));
+
+/* Same as `dladdr', but additionally sets *EXTRA_INFO according to FLAGS.  */
+extern int dladdr1 (const void *__address, Dl_info *__info,
+		    void **__extra_info, int __flags) __THROW __nonnull ((2));
+
+/* These are the possible values for the FLAGS argument to `dladdr1'.
+   This indicates what extra information is stored at *EXTRA_INFO.
+   It may also be zero, in which case the EXTRA_INFO argument is not used.  */
+enum
+  {
+    /* Matching symbol table entry (const ElfNN_Sym *).  */
+    RTLD_DL_SYMENT = 1,
+
+    /* The object containing the address (struct link_map *).  */
+    RTLD_DL_LINKMAP = 2
+  };
+
+
+/* Get information about the shared object HANDLE refers to.
+   REQUEST is from among the values below, and determines the use of ARG.
+
+   On success, returns zero.  On failure, returns -1 and records an error
+   message to be fetched with `dlerror'.  */
+extern int dlinfo (void *__restrict __handle,
+		   int __request, void *__restrict __arg)
+     __THROW __nonnull ((1, 3));
+
+/* These are the possible values for the REQUEST argument to `dlinfo'.  */
+enum
+  {
+    /* Treat ARG as `lmid_t *'; store namespace ID for HANDLE there.  */
+    RTLD_DI_LMID = 1,
+
+    /* Treat ARG as `struct link_map **';
+       store the `struct link_map *' for HANDLE there.  */
+    RTLD_DI_LINKMAP = 2,
+
+    RTLD_DI_CONFIGADDR = 3,	/* Unsupported, defined by Solaris.  */
+
+    /* Treat ARG as `Dl_serinfo *' (see below), and fill in to describe the
+       directories that will be searched for dependencies of this object.
+       RTLD_DI_SERINFOSIZE fills in just the `dls_cnt' and `dls_size'
+       entries to indicate the size of the buffer that must be passed to
+       RTLD_DI_SERINFO to fill in the full information.  */
+    RTLD_DI_SERINFO = 4,
+    RTLD_DI_SERINFOSIZE = 5,
+
+    /* Treat ARG as `char *', and store there the directory name used to
+       expand $ORIGIN in this shared object's dependency file names.  */
+    RTLD_DI_ORIGIN = 6,
+
+    RTLD_DI_PROFILENAME = 7,	/* Unsupported, defined by Solaris.  */
+    RTLD_DI_PROFILEOUT = 8,	/* Unsupported, defined by Solaris.  */
+
+    /* Treat ARG as `size_t *', and store there the TLS module ID
+       of this object's PT_TLS segment, as used in TLS relocations;
+       store zero if this object does not define a PT_TLS segment.  */
+    RTLD_DI_TLS_MODID = 9,
+
+    /* Treat ARG as `void **', and store there a pointer to the calling
+       thread's TLS block corresponding to this object's PT_TLS segment.
+       Store a null pointer if this object does not define a PT_TLS
+       segment, or if the calling thread has not allocated a block for it.  */
+    RTLD_DI_TLS_DATA = 10,
+
+    RTLD_DI_MAX = 10
+  };
+
+
+/* This is the type of elements in `Dl_serinfo', below.
+   The `dls_name' member points to space in the buffer passed to `dlinfo'.  */
+typedef struct
+{
+  char *dls_name;		/* Name of library search path directory.  */
+  unsigned int dls_flags;	/* Indicates where this directory came from. */
+} Dl_serpath;
+
+/* This is the structure that must be passed (by reference) to `dlinfo' for
+   the RTLD_DI_SERINFO and RTLD_DI_SERINFOSIZE requests.  */
+typedef struct
+{
+  size_t dls_size;		/* Size in bytes of the whole buffer.  */
+  unsigned int dls_cnt;		/* Number of elements in `dls_serpath'.  */
+  Dl_serpath dls_serpath[1];	/* Actually longer, dls_cnt elements.  */
+} Dl_serinfo;
+#endif /* __USE_GNU */
+
+
+__END_DECLS
+
+#endif	/* dlfcn.h */