lorder(CP)                     6 January 1993                     lorder(CP)


 Name

    lorder - find ordering relation for an object library

 Syntax

    lorder file ...

 Description

    The input is one or more object or library archive files (see ar(CP)).
    The standard output is a list of pairs of object file or archive member
    names, meaning that the first file of the pair refers to external iden-
    tifiers defined in the second.  The output may be processed by tsort(CP)
    to find an ordering of a library suitable for one-pass access by ld(CP).
    Note that the link editor ld(CP) is capable of multiple passes over an
    archive in the portable archive format (see ar(FP)) and does not require
    that lorder(CP) be used when building an archive.  The usage of the
    lorder(CP) command may, however, allow for a slightly more efficient
    access of the archive during the link edit process.

    The following example builds a new library from existing .o files.

       ar -cr library `lorder *.o | tsort`

 Files


    TMPDIR/*symref    temporary files

    TMPDIR/*symdef    temporary files

                      TMPDIR is usually /usr/tmp but can be redefined by set-
                      ting the environment variable TMPDIR (see tempnam() in
                      tmpnam(S)).

 Note

    lorder will accept as input any object or archive file, regardless of its
    suffix, provided there is more than one input file.  If there is only a
    single input file, its suffix must be .o.

 See also

    ar(CP), ar(FP), ld(CP), tsort(CP)

 Standards conformance

    lorder is conformant with:
    AT&T SVID Issue 2.