https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79305
--- Comment #4 from Steve Kargl <sgk at troutmask dot apl.washington.edu> --- On Tue, Jan 31, 2017 at 06:27:06PM +0000, mexas at bristol dot ac.uk wrote: > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79305 > > --- Comment #2 from Anton Shterenlikht <mexas at bristol dot ac.uk> --- > I think the program is standard conforming. > So strictly speaking the compiler is not standard conforming here, right? > The compiler is standard conforming. Simply a bug in spelling HAVE_EXPL as EXPL. With a patch to 7.0, I have troutmask:sgk[211] ./z (1.46869393991588515717,-2.28735528717884239124) with your program.