align detection of lua in autotools with what's done in cmake

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/simgrid/simgrid/trunk@7694 48e7efb5-ca39-0410-a469-dd3cf9ba447f

diff --git a/configure.ac b/configure.ac
index 33f3d8e..9bd02f9 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -457,13 +457,13 @@ AC_ARG_ENABLE(lua,
 if test "x$disable_lua" != "xyes" ; then
    use_lua="disabled by user"
 else
-  AC_CHECK_HEADERS(lua5.1/lualib.h)
-  if test "x$ac_cv_header_lua5_1_lualib_h" = "xyes" ; then
+  AC_CHECK_HEADERS(lualib.h)
+  if test "x$ac_cv_header_lualib_h" = "xyes" ; then
      use_lua="yes"
      AC_DEFINE(HAVE_LUA,1, [defines whether Lua bindings must be compiled or not])
      SIMGRID_DEP="${SIMGRID_DEP} -ldl -llua5.1"
   else   
-     use_lua="no (you may want to install the liblua5.1-0-dev package)"
+     use_lua="no (you may want to install the liblua5.1-0-dev package, or pass CFLAGS=/usr/include/lua5.1)"
   fi
 fi
 AC_MSG_RESULT(decide whether to compile lua bindings... $use_lua)