ldd(1)              (C Programming Language Utilities)               ldd(1)


   NAME
         ldd - list dynamic dependencies

   SYNOPSIS
         ldd [-d | -r] file

   DESCRIPTION
         The ldd command lists the path names of all shared objects that would
         be loaded as a result of executing file.  If file is a valid
         executable but does not require any shared objects, ldd will succeed,
         producing no output.

         ldd may also be used to check the compatibility of file with the
         shared objects it uses.  It does this by optionally printing warnings
         for any unresolved symbol references that would occur if file were
         executed.  Two options govern this mode of ldd:

         -d    Causes ldd to check all references to data objects.

         -r    Causes ldd to check references to both data objects and
               functions.

         Only one of the above options may be given during any single
         invocation of ldd.

   SEE ALSO
         cc(1), ld(1).
         The ``C Compilation System'' chapter in the Programmer's Guide: ANSI
         C and Programming Support Tools.

   DIAGNOSTICS
         ldd prints its record of shared object path names to stdout.  The
         optional list of symbol resolution problems are printed to stderr.
         If file is not an executable file or cannot be opened for reading, a
         non-zero exit status is returned.

   NOTES
         ldd doesn't list shared objects explicitly attached via dlopen(3X).

         ldd uses the same algorithm as the dynamic linker to locate shared
         objects.












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