coin3d: include fix for newer compilers

This manifests as a segfault in any applications that use the library.

pkgs/development/libraries/coin3d/default.nix

@@ -16,6 +16,9 @@ stdenv.mkDerivation rec {
       sha256 = "076dyc52swk8qc7ylps53fg6iqmd52x8s7m18i80x49dd109yw20";
     })
     ./gcc-4.8.patch # taken from FC-17 source rpm
+    # see https://bitbucket.org/Coin3D/coin/issues/128/crash-in-cc_memalloc_deallocate
+    # patch adapted from https://bitbucket.org/Coin3D/coin/pull-requests/75/added-fix-for-issue-128-provided-by-fedora/diff
+    ./sbhashentry.patch
   ];
 
   buildInputs = [ mesa ];

pkgs/development/libraries/coin3d/sbhashentry.patch

@@ -0,0 +1,25 @@
+diff -u --label /tmp/Coin-3.1.3/src/misc/SbHash.h --label \#\<buffer\ SbHash.h\> /tmp/Coin-3.1.3/src/misc/SbHash.h /tmp/buffer-content-21756V0
+--- a/src/misc/SbHash.h
++++ b/src/misc/SbHash.h
+@@ -88,8 +88,8 @@
+     SbHashEntry<Type, Key> * entry = static_cast<SbHashEntry<Type, Key> *>( ptr);
+     cc_memalloc_deallocate(entry->memhandler, ptr);
+   }
+-  SbHashEntry(const Key & key, const Type & obj) : key(key), obj(obj) {}
+-
++  SbHashEntry(const Key & key, const Type & obj, cc_memalloc *memhandler)
++		: key(key), obj(obj), memhandler(memhandler) {}
+   Key key;
+   Type obj;
+   SbHashEntry<Type, Key> * next;
+@@ -218,7 +218,7 @@
+     /* Key not already in the hash table; insert a new
+      * entry as the first element in the bucket
+      */
+-    entry = new (this->memhandler) SbHashEntry<Type, Key>(key, obj);
++    entry = new (this->memhandler) SbHashEntry<Type, Key>(key, obj, this->memhandler);
+     entry->next = this->buckets[i];
+     this->buckets[i] = entry;
+
+
+Diff finished.  Sat Sep  9 19:50:32 2017