The following macros make the system type available to
scripts. They run the shell script
config.guess to determine any
values for the host, target, and build types that they need and the user
did not specify on the command line. They run
canonicalize any aliases the user gave. If you use these macros, you
must distribute those two shell scripts along with your source code.
See section Creating Output Files, for information about the
which you can use to control which directory
configure looks for
those scripts in. If you do not use either of these macros,
configure ignores any `--host', `--target', and
`--build' options given to it.
AC_CANONICAL_SYSTEMrelevant to the host type. This is all that is needed for programs that are not part of a compiler toolchain.
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