improve construction of archsitedir for lua

diff --git a/configure.ac b/configure.ac
index 6d635ff2772e4b5d6e9e120640306eb569e71a3c..8c2855003231a225eca079476ff0b48e11e83007 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -643,7 +643,7 @@ if test "x$enable_lua" = "xyes" ; then
                    LUA_VERSION=`$PKGCONFIG --modversion lua$l`
                     LUA_INCLUDES="$LUA_CFLAGS "`$PKGCONFIG --cflags lua$l`
                     LUA_LIBS="$LUA_LFLAGS "`$PKGCONFIG --libs lua$l`
-                   LUA_INSTALL_DIR="/usr/lib$LIBPOSTFIX/lua/5.1"
+                   LUA_INSTALL_DIR="/usr/lib$LIBPOSTFIX/lua/`$PKGCONFIG --variable=V lua`"
 
                    pkgconfig_lualib_found=`$PKGCONFIG --exists lualib$l 2>/dev/null`
                    if test  "x$?" = "x0"; then