[gimp] build: update webkit patch for flatpak build.

[Jehan Pagès <jehanp src gnome org>]

commit 40fe08b8c16e74c8df792c2840d26a4f16d33d17
Author: Jehan <jehan girinstud io>
Date:   Sat Sep 23 03:28:36 2017 +0200

    build: update webkit patch for flatpak build.
    
    Not sure why, because flatpak-builder used to compile webkitgtk just
    fine, but not anymore. I get now a "call of overloaded ‘abs(gdouble)’ is
    ambiguous" error. It looks like some header may have been updated in the
    flatpak environment and causing multiple abs definitions. Using fabs()
    instead works around the issue.

 build/flatpak/patches/webkitgtk-2.4.11.patch |   18 ++++++++++++++++--
 1 files changed, 16 insertions(+), 2 deletions(-)
---
diff --git a/build/flatpak/patches/webkitgtk-2.4.11.patch b/build/flatpak/patches/webkitgtk-2.4.11.patch
index 85e9ad5..3a63e65 100644
--- a/build/flatpak/patches/webkitgtk-2.4.11.patch
+++ b/build/flatpak/patches/webkitgtk-2.4.11.patch
@@ -1,6 +1,20 @@
-diff -ru webkitgtk-2.4.11/Source/WebCore/platform/gtk/RenderThemeGtk2.cpp 
webkitgtk-2.4.11.raw.patched/Source/WebCore/platform/gtk/RenderThemeGtk2.cpp
+diff -ru webkitgtk-2.4.11/Source/WebCore/platform/gtk/GtkClickCounter.cpp 
webkitgtk-2.4.11-patched/Source/WebCore/platform/gtk/GtkClickCounter.cpp
+--- webkitgtk-2.4.11/Source/WebCore/platform/gtk/GtkClickCounter.cpp   2016-04-10 08:48:37.000000000 +0200
++++ webkitgtk-2.4.11-patched/Source/WebCore/platform/gtk/GtkClickCounter.cpp   2017-09-21 01:59:09.359098267 
+0200
+@@ -85,8 +85,8 @@
+     guint32 eventTime = getEventTime(event);
+ 
+     if ((event->type == GDK_2BUTTON_PRESS || event->type == GDK_3BUTTON_PRESS)
+-        || ((abs(buttonEvent->x - m_previousClickPoint.x()) < doubleClickDistance)
+-            && (abs(buttonEvent->y - m_previousClickPoint.y()) < doubleClickDistance)
++        || ((fabs(buttonEvent->x - m_previousClickPoint.x()) < doubleClickDistance)
++            && (fabs(buttonEvent->y - m_previousClickPoint.y()) < doubleClickDistance)
+             && (eventTime - m_previousClickTime < static_cast<guint>(doubleClickTime))
+             && (buttonEvent->button == m_previousClickButton)))
+         m_currentClickCount++;
+diff -ru webkitgtk-2.4.11/Source/WebCore/platform/gtk/RenderThemeGtk2.cpp 
webkitgtk-2.4.11-patched/Source/WebCore/platform/gtk/RenderThemeGtk2.cpp
 --- webkitgtk-2.4.11/Source/WebCore/platform/gtk/RenderThemeGtk2.cpp   2016-04-10 08:48:37.000000000 +0200
-+++ webkitgtk-2.4.11.raw.patched/Source/WebCore/platform/gtk/RenderThemeGtk2.cpp       2017-01-30 
23:43:13.427189343 +0100
++++ webkitgtk-2.4.11-patched/Source/WebCore/platform/gtk/RenderThemeGtk2.cpp   2017-09-21 01:57:56.114814372 
+0200
 @@ -40,6 +40,7 @@
  #include "PaintInfo.h"
  #include "PlatformContextCairo.h"