m4/pdns_with_lua.m4

   1 AC_DEFUN([PDNS_WITH_LUA],[
   2   AC_PROG_GREP()dnl Ensure we have grep
   3   AC_MSG_CHECKING([which Lua implementation to use])
   4   AC_ARG_WITH([lua], [
   5     AS_HELP_STRING([--with-lua], [select Lua implementation @<:@default=auto@:>@])
   6   ], [
   7     with_lua=$withval
   8   ], [
   9     with_lua=auto
  10   ])
  11   AC_MSG_RESULT([$with_lua])
  12
  13   AS_IF([test "x$with_lua" = "xno" -a "$1" = "mandatory"], [
  14     AC_MSG_ERROR([--without-lua specified, but Lua is not optional])
  15   ])
  16
  17   LUAPC=""
  18   luajit_min_version='2.0.3'
  19   lua_min_version='5.1'
  20
  21   AS_IF([test "x$with_lua" != "xno"], [
  22     AS_IF([test "x$with_lua" != "xauto"], [
  23       with_lua_version=${lua_min_version}
  24       AS_IF([echo "x$with_lua" | ${GREP} 'jit' >/dev/null 2>&1], [with_lua_version=${luajit_min_version}])
  25       PKG_CHECK_MODULES([LUA], $with_lua >= $with_lua_version, [
  26         AC_DEFINE([HAVE_LUA], [1], [Define to 1 if you have Lua])
  27         LUAPC=$with_lua
  28       ], [
  29         AC_MSG_ERROR([Selected Lua ($with_lua) not found])
  30       ])
  31     ], [
  32       PKG_CHECK_MODULES([LUA], [luajit >= ${luajit_min_version}], [
  33         LUAPC=luajit
  34         AC_DEFINE([HAVE_LUA], [1], [Define to 1 if you have Lua])
  35       ], [ : ])
  36       AS_IF([test -z "$LUAPC"], [
  37         found_lua=n
  38         m4_foreach_w([luapc], [lua5.3 lua-5.3 lua53 lua5.2 lua-5.2 lua52 lua5.1 lua-5.1 lua51 lua], [
  39           AS_IF([test "$found_lua" != "y"], [
  40             PKG_CHECK_MODULES([LUA], [luapc >= ${lua_min_version}], [
  41               AC_DEFINE([HAVE_LUA], [1], [Define to 1 if you have lua])
  42               found_lua=y
  43               LUAPC=luapc
  44             ], [ : ])
  45           ])
  46         ])
  47       ])
  48     ])
  49   ])
  50
  51   AS_IF([test -z "$LUAPC" -a "$1" = "mandatory"], [
  52     AC_MSG_ERROR([No Lua not found, but is mandatory])
  53   ])
  54
  55   AM_CONDITIONAL([LUA], [test -n "x$LUAPC"])
  56 ])