October 2000
Intermediate to advanced
432 pages
9h 9m
English
book
GNU Autoconf, Automake, and Libtool
by Gary V. Vaughan, Ben Elliston, Tom Tromey, Ian Lance Taylor
Content preview from GNU Autoconf, Automake, and Libtool
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25.3. Using the Target Type
A 'configure' script for a cross-compilation tool uses the '--target' option to control how it is built, so that the resulting program will produce programs that run on the appropriate system. This section explains how you can write your own configure scripts to support the '--target' option.
You must start by putting 'AC_CANONICAL_SYSTEM' in 'configure.in'. 'AC_CANONICAL_SYSTEM' looks for a '--target' option and canonicalizes it using the 'config.sub' shell script. (For more information about configuration names, canonicalizing them, and 'config.sub', see Section 2.4, "Configuration Names." ) 'AC_CANONICAL_SYSTEM' also runs 'AC_CANONICAL_HOST' to get the host information.
The host and target type are recorded in ...
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