NAME

       dlfcn.h - dynamic linking

SYNOPSIS

       #include <dlfcn.h>

DESCRIPTION

       The  <dlfcn.h>  header  shall  define  at  least  the  following  macros  for  use  in the
       construction of a dlopen() mode argument:

       RTLD_LAZY
              Relocations are performed at an implementation-defined time.

       RTLD_NOW
              Relocations are performed when the object is loaded.

       RTLD_GLOBAL
              All symbols are available for relocation processing of other modules.

       RTLD_LOCAL
              All symbols are not made available for relocation processing by other modules.

       The following shall be declared as functions and may also be defined as  macros.  Function
       prototypes shall be provided.

              int    dlclose(void *);
              char  *dlerror(void);
              void  *dlopen(const char *, int);
              void  *dlsym(void *restrict, const char *restrict);

       The following sections are informative.

APPLICATION USAGE

       None.

RATIONALE

       None.

FUTURE DIRECTIONS

       None.

SEE ALSO

       The  System  Interfaces  volume  of  IEEE Std 1003.1-2001,  dlopen(),  dlclose(), dlsym(),
       dlerror()

COPYRIGHT

       Portions of this text are reprinted and  reproduced  in  electronic  form  from  IEEE  Std
       1003.1,  2003  Edition,  Standard  for Information Technology -- Portable Operating System
       Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2003  by
       the  Institute  of  Electrical  and  Electronics Engineers, Inc and The Open Group. In the
       event of any discrepancy between this version and the original IEEE  and  The  Open  Group
       Standard,  the  original  IEEE  and  The  Open Group Standard is the referee document. The
       original Standard can be obtained online at http://www.opengroup.org/unix/online.html .