For 64bit builds, I need to #define x86_64 for a lib I'm using. It has nothing to do with the size of longs from my perspective, but whether the binary is compiled for a 64 or 32 bit target. wes On Tue, Jun 29, 2010 at 9:39 PM, Mike Frysinger <vapier@xxxxxxxxxx> wrote: > On Tuesday, June 29, 2010 14:26:29 Wesley Smith wrote: >> What's the appropriate way to determine 32 v. 64 bit compilation? > > what exactly is it you're concerned with ? if it's sizes of specific types, > then do as Bob said and check individual types. you cannot make assumptions > when the target is "64bits" or "32bits" because not everyone does a 64bit port > the same. case in point is the Windows 64bit port. it does not define type > sizes the way most people (like Linux 64bit) do. > >> I've looked into using: >> >> AC_CANONICAL_BUILD > > i also think you're confusing BUILD and HOST. BUILD is where things are > compiled while HOST is where things execute. the vast majority of the time, > HOST is what you want. > -mike > _______________________________________________ Autoconf mailing list Autoconf@xxxxxxx http://lists.gnu.org/mailman/listinfo/autoconf
