Re: Gnuplot 4.4.2 (fixes some problems with 4.4.1)

[Ethan M. <merritt@u.washington.edu>]

On Tuesday 28 September 2010 09:58:57 pm Tatsuro MATSUOKA wrote:
> Oops! Djgpp version seems not to support NaN
> 
> The same error  occurred in gnuplot 4.5 cvs.
> But this might be the limitation djgpp environments.
> At the moment, in my opnion, it is better to ignore this issue and consider the treatment in the cvs
> release.

If you change the configuration file config.dj2 does it build properly?

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
--- config.dj2.old      2010-09-29 10:21:42.000000000 -0700
+++ config.dj2  2010-09-29 10:22:06.000000000 -0700
@@ -142,7 +142,7 @@
 #endif

 /* Define to 1 if you have the `isnan' function. */
-/* #undef HAVE_ISNAN */
+#define HAVE_ISNAN

 /* Define if you use have kpsexpand (TeX). */
 /* #undef HAVE_KPSEXPAND */
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

I think this should work, because I now see that there is a call to isnan()
in datafile.c that is not protected by #ifdef HAVE_ISNAN.  
So if djpp can compile datafile.c, then it must support isnan().

However, I am not certain that the variable NaN will be properly initialized.
So please check the output of "print NaN" after building.

	Ethan

-- 
Ethan A Merritt
Biomolecular Structure Center,  K-428 Health Sciences Bldg
University of Washington, Seattle 98195-7742