[gtk-engines] Correct the SYSTEM_LUA conditional check. (patch from bug #594014)

[Benjamin Berg <bberg src gnome org>]

commit 4221c5cdd5929cec9ac281e475f26eed7c0a7811
Author: Benjamin Berg <benjamin sipsolutions net>
Date:   Tue Sep 22 11:43:28 2009 +0200

    Correct the SYSTEM_LUA conditional check. (patch from bug #594014)

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index b48b764..4a6a951 100644
--- a/configure.ac
+++ b/configure.ac
@@ -50,7 +50,7 @@ AC_ARG_ENABLE(deprecated,	[  --disable-deprecated    disable deprecated function
 AC_ARG_ENABLE(schemas,		[  --disable-schema        disable engine schemas],	[schemas=$enableval],	[schemas="yes"])
 AC_ARG_WITH(system-lua,	[  --with-system-lua        link with system Lua library], 		[system_lua=$withval], 	[system_lua="no"])
 
-AM_CONDITIONAL([SYSTEM_LUA], [test x$system_lua = xtrue])
+AM_CONDITIONAL([SYSTEM_LUA], [test x$system_lua = xyes])
 
 BUILD_ENGINES=""
 BUILD_THEMES=""