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.Dd February 27, 2024 .Dt LORDER 1 .Os .Sh NAME .Nm lorder .Nd list dependencies for object files .Sh SYNOPSIS .Nm .Ar .Sh DESCRIPTION The .Nm utility uses .Xr nm 1 to determine interdependencies between object files and library archives listed on its command line. It then outputs a list of pairs of file names such that the first file in each pair references at least one symbol defined by the second.
p The output is normally used with .Xr tsort 1 when a library is created to determine the optimum ordering of the object modules so that all references may be resolved in a single pass of the loader.
p Similarly, when linking static binaries, .Nm and .Xr tsort 1 can be used to sort libraries in order of dependency.
p While contemporary linkers no longer require the use of .Nm , it is provided for the benefit of legacy code bases and build systems which still insist on it. .Sh ENVIRONMENT l -tag -width indent t Ev NM Path to the .Xr nm 1 binary, defaults to .Dq Li nm . t Ev NMFLAGS Flags to pass to .Xr nm 1 . .El .Sh EXAMPLES d -literal -offset indent ar cr library.a `lorder ${OBJS} | tsort` cc -o foo ${OBJS} `lorder ${STATIC_LIBS} | tsort` .Ed .Sh SEE ALSO .Xr ar 1 , .Xr ld 1 , .Xr nm 1 , .Xr ranlib 1 , .Xr tsort 1 .Sh HISTORY A .Nm utility appeared in .At v7 . .Sh CAVEATS The .Nm utility will not work properly if given file names with spaces or newlines in them.