[Buildroot] [PATCH] lua: add a uptstream patch

[Francois Perrad]

Signed-off-by: Francois Perrad <francois.perrad at gadz.org>
---
 package/lua/5.2.3/0012-fix-ephemeron-table.patch | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 package/lua/5.2.3/0012-fix-ephemeron-table.patch

diff --git a/package/lua/5.2.3/0012-fix-ephemeron-table.patch b/package/lua/5.2.3/0012-fix-ephemeron-table.patch
new file mode 100644
index 0000000..f231016
--- /dev/null
+++ b/package/lua/5.2.3/0012-fix-ephemeron-table.patch
@@ -0,0 +1,19 @@
+Ephemeron table can wrongly collect entry with strong key.
+
+Fetch from: http://www.lua.org/bugs.html#5.2.3-2
+
+Signed-off-by: Francois Perrad <francois.perrad at gadz.org>
+
+Index: b/src/lgc.c
+===================================================================
+--- a/src/lgc.c
++++ b/src/lgc.c
+@@ -403,7 +403,7 @@
+       reallymarkobject(g, gcvalue(gval(n)));  /* mark it now */
+     }
+   }
+-  if (prop)
++  if (g->gcstate != GCSatomic || prop)
+     linktable(h, &g->ephemeron);  /* have to propagate again */
+   else if (hasclears)  /* does table have white keys? */
+     linktable(h, &g->allweak);  /* may have to clean white keys */
-- 
2.1.0