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LDD(1)                     Linux Programmer's Manual                    LDD(1)



NAME
       ldd - print shared library dependencies

SYNOPSIS
       ldd [OPTION]... FILE...

DESCRIPTION
       ldd prints the shared libraries required by each program or shared library specified on the command line.

OPTIONS
       --version
              Print the version number of ldd.

       -v --verbose
              Print all information, including, for example, symbol versioning information.

       -u --unused
              Print unused direct dependencies.  (Since glibc 2.3.4.)

       -d --data-relocs
              Perform relocations and report any missing objects (ELF only).

       -r --function-relocs
              Perform  relocations  for  both  data objects and functions, and report any missing objects or functions
              (ELF only).

       --help Usage information.

NOTES
       The standard version of ldd comes with glibc2.  Libc5 came with an older version, still present  on  some  sys-
       tems.  The long options are not supported by the libc5 version.  On the other hand, the glibc2 version does not
       support -V and only has the equivalent --version.

       The libc5 version of this program will use the name of a library given on the command line as-is when  it  con-
       tains a '/'; otherwise it searches for the library in the standard locations.  To run it on a shared library in
       the current directory, prefix the name with "./".

BUGS
       ldd does not work on a.out shared libraries.

       ldd does not work with some extremely old a.out programs which were built before ldd support was added  to  the
       compiler  releases.  If you use ldd on one of these programs, the program will attempt to run with argc = 0 and
       the results will be unpredictable.

SEE ALSO
       ld.so(8), ldconfig(8)

COLOPHON
       This page is part of release 3.22 of the Linux man-pages project.  A description of the project,  and  informa-
       tion about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.



                                  2000-10-30                            LDD(1)