ranlib − generate index to archive.

ranlib [−vVt] archive

ranlib generates an index to the contents of an archive and
stores it in the archive.  The index lists each symbol
defined by a member of an archive that is a relocatable
object file.

     You may use nm −s or nm −−print−armap to list this

     An archive with such an index speeds up linking to the
library and allows routines in the library to call each
other without regard to their placement in the archive.

     The GNU ranlib program is another form of GNU ar;
running ranlib is completely equivalent to executing ar −s.



    Show the version number of ranlib.

−t  Update the timestamp of the symbol map of an archive.

    Read command‐line options from file.  The options read
    are inserted in place of the original @file option.  If
    file does not exist, or cannot be read, then the option
    will be treated literally, and not removed.

    Options in file are separated by whitespace.  A
    whitespace character may be included in an option by
    surrounding the entire option in either single or double
    quotes.  Any character (including a backslash) may be
    included by prefixing the character to be included with
    a backslash.  The file may itself contain additional
    @file options; any such options will be processed

ar(1), nm(1), and the Info entries for binutils.

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     Permission is granted to copy, distribute and/or modify
this document under the terms of the GNU Free Documentation
License, Version 1.3 or any later version published by the


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no Front‐Cover Texts, and with no Back‐Cover Texts.  A copy
of the license is included in the section entitled "GNU Free
Documentation License".