On Fri, 2006-02-03 at 06:07 +0000, Harlan Stenn wrote: > Ralf, > > How about something that would use AC_RUN_IFELSE()? We are talking about distinguishing different compiler versions !!!!!!!!! Why on earth would you want to run something conditionally, depending on which compilers it had been compiled with? > There's a reason it come with ACTION-IF-CROSS-COMPILING - it means one > CANNOT feature test so one has to make the decision beforehand and > decide based on some other factors. You are talking about a package using a toolchain to require _target_ run-time features. Right, these are occasionally required. But we are talking about compiler/toolchain features. The cross compilers/toolchains *never* retrieve anything from a target at run-time. If the toolchains require knowledge about a target's runtime feature, the toolchains must know about it in advance, but the application/package using the toolchain doesn't have to. It can compile/link check the toolchain. Ralf _______________________________________________ Autoconf mailing list Autoconf@xxxxxxx http://lists.gnu.org/mailman/listinfo/autoconf