Try versioned "lua" names before the unversioned one.

Should improve on behavior mentioned at
http://stackoverflow.com/questions/20321560/how-do-install-libraries-for-both-lua5-2-and-5-1-using-luarocks/20359102?noredirect=1#comment30696438_20359102

1 files changed, 6 insertions, 6 deletions

diff --git a/configure b/configure
index 579e96f5..ce5e78f8 100755
--- a/configure
+++ b/configure
@@ -271,14 +271,14 @@ if [ "$LUA_SUFFIX_SET" != "yes" ]
 then
    if [ "$LUA_VERSION_SET" = "yes" -a "$LUA_VERSION" = "5.1" ]
    then
-      suffixes="5.1 51"
+      suffixes="5.1 51 -5.1 -51"
    elif [ "$LUA_VERSION_SET" = "yes" -a "$LUA_VERSION" = "5.2" ]
    then
-      suffixes="5.2 52"
+      suffixes="5.2 52 -5.2 -52"
    else
-      suffixes="5.2 52 5.1 51"
+      suffixes="5.2 52 -5.2 -52 5.1 51 -5.1 -51"
    fi
-   for suffix in "" `echo $suffixes` ""
+   for suffix in `echo $suffixes` ""
    do
       search_interpreter "$suffix" && break
    done
@@ -286,9 +286,9 @@ fi
 
 if [ "$LUA_DIR_SET" != "yes" ]
 then
-   echo_n "Looking for Lua... "
-   if [ ! -n "$find_lua" ]
+   if [ -n "$find_lua" ]
    then
+      echo_n "Looking for Lua... "
       find_lua=`find_program lua$LUA_SUFFIX`
    fi