Victor Wagner <vi...@wagner.pp.ru> writes: > On Wed, 17 Jan 2018 10:07:37 -0500 > Tom Lane <t...@sss.pgh.pa.us> wrote: >> Yeah, I can work with this. What I propose to do is use a somewhat >> stripped-down version of this test as an AC_RUN_IFELSE test normally, >> but if cross-compiling, fall back to just seeing if we can link.
> I'd suggest to add a configure option to switch off 128-bit support > (--disable-int128), especially for these cross-compile cases where link > test cannot give us enough information to decide automatically. I don't want to go there without some evidence that the problem is much more widespread than it appears now. A disable switch will be a permanent documentation and maintenance overhead, plus anyone who puts it into their build scripts will probably never remember to remove it :-(. And how many people will be cross-compiling to Solaris/SPARC anyway? (If there are any, they can always manually change pg_config.h ...) regards, tom lane