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From 1ea2c1e372ab59b9a633a51f0dcefc24328528f1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=B6rg=20Krause?= <joerg.krause@embedded.rocks>
Date: Mon, 10 Sep 2018 08:18:38 +0200
Subject: [PATCH] luvi executable needs to export symbols
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Using CMake 3.12 running luvi fails with:

```
[string "return require('init')(...)"]:1: module 'init' not found:
	no field package.preload['init']
	no file './init.lua'
	no file '/usr/share/luajit-2.0.5/init.lua'
	no file '/usr/local/share/lua/5.1/init.lua'
	no file '/usr/local/share/lua/5.1/init/init.lua'
	no file '/usr/share/lua/5.1/init.lua'
	no file '/usr/share/lua/5.1/init/init.lua'
	no file './init.so'
	no file '/usr/local/lib/lua/5.1/init.so'
	no file '/usr/lib/lua/5.1/init.so'
	no file '/usr/local/lib/lua/5.1/loadall.so'
```

Looking at link.txt for the luvi executable shows that `-rdynamic` is
not set anymore in CMake 3.12. This has the effect, that symbols are
missing in the `.dynsym` section.

Therefore, set `ENABLE_EXPORTS` to true which set `-rdynamic` explicitly.

Upstream status: b8781653dcb8815a3019a77baf4f3b7f7a255ebe

Signed-off-by: Jörg Krause <joerg.krause@embedded.rocks>
---
 CMakeLists.txt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index e141f8e..8219d0b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -158,6 +158,7 @@ if("${CMAKE_SYSTEM_NAME}" MATCHES "Linux")
 endif()
 
 target_link_libraries(luvi ${LUVI_LIBRARIES} ${EXTRA_LIBS} ${CMAKE_THREAD_LIBS_INIT})
+set_target_properties(luvi PROPERTIES ENABLE_EXPORTS ON)
 
 ###############################################################################
 ## Installation Targets
-- 
2.19.1