graphics/opencollada: Add a patch for the newer pcre.

Thanks to RadicalDreamer

Signed-off-by: Matteo Bernardini <ponce@slackbuilds.org>

graphics/opencollada/opencollada.SlackBuild

@@ -70,6 +70,9 @@ find -L . \
  \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
   -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;
 
+# https://github.com/KhronosGroup/OpenCOLLADA/issues/570
+patch -p1 < $CWD/pcre.patch
+
 mkdir -p build
 cd build
   cmake ../ \

graphics/opencollada/pcre.patch

@@ -0,0 +1,13 @@
+diff -Naur OpenCOLLADA-1.6.62.orig/COLLADABaseUtils/include/COLLADABUPcreCompiledPattern.h OpenCOLLADA-1.6.62/COLLADABaseUtils/include/COLLADABUPcreCompiledPattern.h
+--- OpenCOLLADA-1.6.62.orig/COLLADABaseUtils/include/COLLADABUPcreCompiledPattern.h	2018-01-13 01:23:52.000000000 +0100
++++ OpenCOLLADA-1.6.62/COLLADABaseUtils/include/COLLADABUPcreCompiledPattern.h	2018-07-08 08:40:38.764948000 +0200
+@@ -13,8 +13,7 @@
+ 
+ #include "COLLADABUPrerequisites.h"
+ 
+-struct real_pcre;
+-typedef struct real_pcre pcre;
++#include "pcre.h"
+ 
+ 
+ namespace COLLADABU