Disable some image comparison tests on architectures such as i686
where intermediate floating-point operations are done with 80-bit long
doubles, and typically later rounded to 64-bit doubles.  This double
rounding causes small differences in the resulting pixel values
compared with other architectures, causing the image comparisons to
fail.

Patch by Mark H Weaver <mhw@netris.org>.

diff -ru libgd-2.2.3.orig/tests/gdimagecopyresampled/basic_alpha.c libgd-2.2.3/tests/gdimagecopyresampled/basic_alpha.c
--- libgd-2.2.3.orig/tests/gdimagecopyresampled/basic_alpha.c	2016-07-21 04:06:42.000000000 -0400
+++ libgd-2.2.3/tests/gdimagecopyresampled/basic_alpha.c	2016-07-29 13:50:56.214877446 -0400
@@ -1,5 +1,6 @@
 /* Testing basic gdImageCopyResampled() functionality with alpha channel */
 
+#include <float.h>
 #include "gd.h"
 #include "gdtest.h"
 
@@ -33,7 +34,8 @@
 	gdImageCopyResampled(copy, im, 0,0, 0,0, 200,200, 400,300);
 	gdImageDestroy(im);
 
-	gdAssertImageEqualsToFile("gdimagecopyresampled/basic_alpha_exp.png", copy);
+	if (FLT_EVAL_METHOD != 2)
+		gdAssertImageEqualsToFile("gdimagecopyresampled/basic_alpha_exp.png", copy);
 
 	gdImageDestroy(copy);
 	return gdNumFailures();
diff -ru libgd-2.2.3.orig/tests/gdimagecopyresampled/bug00201.c libgd-2.2.3/tests/gdimagecopyresampled/bug00201.c
--- libgd-2.2.3.orig/tests/gdimagecopyresampled/bug00201.c	2016-07-21 04:06:42.000000000 -0400
+++ libgd-2.2.3/tests/gdimagecopyresampled/bug00201.c	2016-07-29 13:50:30.638559003 -0400
@@ -1,3 +1,4 @@
+#include <float.h>
 #include "gd.h"
 #include "gdtest.h"
 
@@ -65,7 +66,8 @@
     gdImageDestroy(background);
     gdImageDestroy(scaled_logo);
     
-    gdAssertImageEqualsToFile("gdimagecopyresampled/bug00201_exp.png", img);
+    if (FLT_EVAL_METHOD != 2)
+        gdAssertImageEqualsToFile("gdimagecopyresampled/bug00201_exp.png", img);
     gdImageDestroy(img);
     return gdNumFailures();
 }
diff -ru libgd-2.2.3.orig/tests/gdimagerotate/bug00067.c libgd-2.2.3/tests/gdimagerotate/bug00067.c
--- libgd-2.2.3.orig/tests/gdimagerotate/bug00067.c	2016-06-18 05:42:16.000000000 -0400
+++ libgd-2.2.3/tests/gdimagerotate/bug00067.c	2016-07-29 13:50:07.566271765 -0400
@@ -1,5 +1,6 @@
 #include <stdio.h>
 #include <stdlib.h>
+#include <float.h>
 #include "gd.h"
 
 #include "gdtest.h"
@@ -43,7 +44,7 @@
 
 		sprintf(filename, "bug00067_%03d_exp.png", angle);
 		path = gdTestFilePath2("gdimagerotate", filename);
-		if (!gdAssertImageEqualsToFile(path, exp)) {
+		if (FLT_EVAL_METHOD != 2 && !gdAssertImageEqualsToFile(path, exp)) {
 			gdTestErrorMsg("comparing rotated image to %s failed.\n", path);
 			error += 1;
 		}
t'>Age</th><th class='left'>Commit message (<a href='/guix/log/gnu/packages/unrtf.scm?id=0aea268ae12a213775e859d58e67da27741949fb'>Collapse</a>)</th><th class='left'>Author</th></tr>
<tr class='logheader'><td><span title='2017-03-30 01:30:16 +0200'>2017-03-30</span></td><td class='logsubject'><a href='/guix/commit/gnu/packages/unrtf.scm?id=6fd52309b8f52c9bb59fccffac53e029ce94b698'>gnu: Use HTTPS for almost all gnu.org HOME-PAGEs.</a></td><td>Tobias Geerinckx-Rice</td></tr>
<tr class='nohover-highlight'><td/><td colspan='3' class='logmsg'>
All HTTP gnu.org (and supported subdomain) HOME-PAGEs changed to HTTPS.


</td></tr>
<tr class='logheader'><td><span title='2017-01-04 14:42:58 -0500'>2017-01-04</span></td><td class='logsubject'><a href='/guix/commit/gnu/packages/unrtf.scm?id=5f0fabec54812e9ebd9a54b7c24b29899c765548'>gnu: unrtf: Fix CVE-2016-10091.</a></td><td>Leo Famulari</td></tr>
<tr class='nohover-highlight'><td/><td colspan='3' class='logmsg'>
* gnu/packages/patches/unrtf-CVE-2016-10091.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.
* gnu/packages/unrtf.scm (unrtf)[source]: Use it.


</td></tr>
<tr class='logheader'><td><span title='2015-07-18 13:05:01 +0300'>2015-07-18</span></td><td class='logsubject'><a href='/guix/commit/gnu/packages/unrtf.scm?id=e881752c39d455a249731a4e81e64d86f50afc34'>gnu packages: Clean up synopses and descriptions.</a></td><td>Alex Kost</td></tr>
<tr class='nohover-highlight'><td/><td colspan='3' class='logmsg'>
* gnu/packages/admin.scm, gnu/packages/algebra.scm, gnu/packages/audio.scm,
  gnu/packages/backup.scm, gnu/packages/base.scm, gnu/packages/bittorrent.scm,
  gnu/packages/code.scm, gnu/packages/compression.scm,
  gnu/packages/databases.scm, gnu/packages/enchant.scm,
  gnu/packages/firmware.scm, gnu/packages/fonts.scm,
  gnu/packages/freedesktop.scm, gnu/packages/games.scm, gnu/packages/gd.scm,
  gnu/packages/gl.scm, gnu/packages/gnome.scm, gnu/packages/gsasl.scm,
  gnu/packages/gstreamer.scm, gnu/packages/gtk.scm, gnu/packages/guile.scm,
  gnu/packages/haskell.scm, gnu/packages/language.scm,
  gnu/packages/lesstif.scm, gnu/packages/libreoffice.scm,
  gnu/packages/linux.scm, gnu/packages/llvm.scm, gnu/packages/maths.scm,
  gnu/packages/mcrypt.scm, gnu/packages/mit-krb5.scm, gnu/packages/mp3.scm,
  gnu/packages/ncdu.scm, gnu/packages/networking.scm, gnu/packages/ntp.scm,
  gnu/packages/ocaml.scm, gnu/packages/openbox.scm, gnu/packages/pdf.scm,
  gnu/packages/perl.scm, gnu/packages/pretty-print.scm,
  gnu/packages/pulseaudio.scm, gnu/packages/python.scm,
  gnu/packages/rdesktop.scm, gnu/packages/rdf.scm, gnu/packages/ruby.scm,
  gnu/packages/slang.scm, gnu/packages/slim.scm, gnu/packages/telephony.scm,
  gnu/packages/tls.scm, gnu/packages/tmux.scm, gnu/packages/tre.scm,
  gnu/packages/unrtf.scm, gnu/packages/version-control.scm,
  gnu/packages/vpn.scm, gnu/packages/web.scm, gnu/packages/wget.scm,
  gnu/packages/xdisorg.scm, gnu/packages/xfce.scm, gnu/packages/xiph.scm:
  Fix typos.  Trim long lines.  Add missing periods in the end of sentences.
  Use double spaces between sentences.  Remove trailing whitespaces.


</td></tr>
<tr class='logheader'><td><span title='2015-07-03 22:54:51 +0200'>2015-07-03</span></td><td class='logsubject'><a href='/guix/commit/gnu/packages/unrtf.scm?id=257b6c4375b37b11aa16810b24b956739e86ac0c'>gnu: unrtf: Fix download location.</a></td><td>Andreas Enge</td></tr>
<tr class='nohover-highlight'><td/><td colspan='3' class='logmsg'>
* gnu/packages/unrtf.scm (unrtf): Fix download location.


</td></tr>
<tr class='logheader'><td><span title='2015-06-19 11:08:20 +0200'>2015-06-19</span></td><td class='logsubject'><a href='/guix/commit/gnu/packages/unrtf.scm?id=cbfb893493a286703e7c5092de07449b39a194a4'>gnu: unrtf: Update to 0.21.9.</a></td><td>Ludovic Courtès</td></tr>
<tr class='nohover-highlight'><td/><td colspan='3' class='logmsg'>
* gnu/packages/unrtf.scm (unrtf): Update to 0.21.9.
  [source]: Add 'modules' and 'snippet' fields.
  [arguments]: Remove.


</td></tr>