On Mon, Mar 4, 2013 at 4:09 PM, Michael Powell <mwpowellhtx@xxxxxxxxx> wrote: > > I don't know if possibly the folks on this list have any knowledge of > autoconf configure? There is a mailing list for autoconf that would probably be a more useful place to ask. http://www.gnu.org/software/autoconf/#mailinglists > Specifically, I have a system I'd like to build in either x86 default > Linux GCC environment, or ARM cross compiler. > > I want to specify "./configure --target" (usage?) and when x86 or ARM > (or some derived Makefile variables) is detected, include the > appropriate $(TARGET_OS).make file. In autoconf terminology this is not a target. It is a host. > The docs on config.sub and config.guess are rather fuzzy. The examples > I am digging up are vastly more complex than we need. I wrote an introduction a long time ago at http://www.airs.com/ian/configure/ . It may help; not sure. Basically you want something like AC_CANONICAL_SYSTEM case "${host}" in *86*) HOST_OS=x86 ;; *arm*) HOST_OS=arm ;; *) AC_ERROR([huh]) esac AC_SUBST(HOST_OS) and then in your Makefile include $(HOST_OS).make Ian
