Hello Eric, On Fri, May 02, 2008 at 04:30:51PM -0600, Eric Lemings wrote: > Currently, the AC_LINK_IFELSE macro only accepts one source file. For > some C++ linkage tests, two (or more) sources need to be linked > together. [...] > (I suspect a customized AC_LANG(C++) macro to define an alternate ac_link > variable might do the trick.) well, there is another detail: at the end of AC_LINK_IFELSE, the object file is deleted. In your case, both object files have to be deleted. So I think you really need a new macro. It is not obvious in which level you hook into Autoconf. If you write it, please submit it to autoconf-patches@, I think it might be accepted it to Autoconf. (Provided the necessary paperwork is done.) Actually, I guess that the macro will have to rely on undocumented internals, so adding it to Autoconf itself is a good way to ensure it will work with future releases of Autoconf. > int i = foo (); // returns 0 > int j = bar (); // should return 1 > > return !(i != j); > } BTW, this looks like a check which would need to be run to get the result. So it looks more like AC_RUN_IFELSE. Have a nice day, Stepan Kasal _______________________________________________ Autoconf mailing list Autoconf@xxxxxxx http://lists.gnu.org/mailman/listinfo/autoconf
