configure.ac: better lua detection

Make sure to constrain the Lua autoconf search to
Lua 5.3 interpreter and libraries.

Signed-off-by: Quentin Young <qlyoung@nvidia.com>

diff --git a/configure.ac b/configure.ac
index b034fab50cb24f4664ebc6a1326fd1de7d81a2a5..19a619e95199f8da84d7b3cefd09406d47e4a58c 100755 (executable)
--- a/configure.ac
+++ b/configure.ac
@@ -288,11 +288,17 @@ if test "$enable_clang_coverage" = "yes"; then
 fi
 
 if test "$enable_scripting" = "yes"; then
-   AX_PROG_LUA([5.3])
-   AX_LUA_HEADERS
+   AX_PROG_LUA([5.3], [5.4], [], [
+     AC_MSG_ERROR([Lua 5.3 is required to build with Lua support. No other version is supported.])
+   ])
+   AX_LUA_HEADERS([], [
+     AC_MSG_ERROR([Lua 5.3 headers are required to build with Lua support. No other version is supported.])
+   ])
    AX_LUA_LIBS([
-      AC_DEFINE([HAVE_SCRIPTING], [1], [Have support for scripting])
-      LIBS="$LIBS $LUA_LIB"
+     AC_DEFINE([HAVE_SCRIPTING], [1], [Have support for scripting])
+     LIBS="$LIBS $LUA_LIB"
+   ], [
+     AC_MSG_ERROR([Lua 5.3 libraries are required to build with Lua support. No other version is supported.])
    ])
 fi