From adc04afe34791a90a552fcaefaf30e24b937e1b3 Mon Sep 17 00:00:00 2001
From: Michael Krasnyk <michael.krasnyk@gmail.com>
Date: Wed, 18 Jan 2017 15:22:20 +0100
Subject: FindLua: Add dl library to Lua static library linking

If a Lua library is compiled from source as `liblua.a` its link
dependency on `dl` must be satisfied explicitly.
---
 Modules/FindLua.cmake | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Modules/FindLua.cmake b/Modules/FindLua.cmake
index 5be0428..c777970 100644
--- a/Modules/FindLua.cmake
+++ b/Modules/FindLua.cmake
@@ -172,6 +172,13 @@ if (LUA_LIBRARY)
     if (UNIX AND NOT APPLE AND NOT BEOS)
         find_library(LUA_MATH_LIBRARY m)
         set(LUA_LIBRARIES "${LUA_LIBRARY};${LUA_MATH_LIBRARY}")
+
+        # include dl library for statically-linked Lua library
+        get_filename_component(LUA_LIB_EXT ${LUA_LIBRARY} EXT)
+        if(LUA_LIB_EXT STREQUAL CMAKE_STATIC_LIBRARY_SUFFIX)
+          list(APPEND LUA_LIBRARIES ${CMAKE_DL_LIBS})
+        endif()
+
     # For Windows and Mac, don't need to explicitly include the math library
     else ()
         set(LUA_LIBRARIES "${LUA_LIBRARY}")
-- 
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