APACHE_MODPATH_INIT(lua)

dnl CHECK_LUA_PATH(PREFIX, INCLUDE-PATH, LIB-PATH, LIB-NAME)

dnl

dnl Checks for a specific version of the Lua libraries. Use CHECK_LUA instead,

dnl which will call this macro.

dnl

dnl Sets LUA_CFLAGS and LUA_LIBS, and breaks from its containing loop, if the

dnl check succeeds.

AC_DEFUN([CHECK_LUA_PATH], [dnl

    AC_MSG_CHECKING([for lua.h in $1/$2])

    if test -f $1/$2/lua.h; then

        AC_MSG_RESULT([yes])

        save_CFLAGS=$CFLAGS

        save_LDFLAGS=$LDFLAGS

        CFLAGS="$CFLAGS"

        LDFLAGS="-L$1/$3 $LDFLAGS $lib_m"

        AC_CHECK_LIB($4, luaL_newstate, [

            LUA_LIBS="-L$1/$3 -l$4 $lib_m"

            if test "x$ap_platform_runtime_link_flag" != "x"; then

               APR_ADDTO(LUA_LIBS, [$ap_platform_runtime_link_flag$1/$3])

            fi

            LUA_CFLAGS="-I$1/$2"

        ])

        CFLAGS=$save_CFLAGS

        LDFLAGS=$save_LDFLAGS

        if test -n "${LUA_LIBS}"; then

            break

        fi

    else

        AC_MSG_RESULT([no])

    fi

])

dnl Check for Lua 5.3/5.2/5.1 Libraries

dnl CHECK_LUA(ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND])

dnl Sets:

dnl  LUA_CFLAGS

dnl  LUA_LIBS

AC_DEFUN([CHECK_LUA],

[dnl

AC_ARG_WITH(

    lua,

    [AC_HELP_STRING([--with-lua=PATH],[Path to the Lua 5.3/5.2/5.1 prefix])],

    lua_path="$withval",

    :)

dnl # Determine lua lib directory

if test -z "$lua_path"; then

    test_paths=". /usr/local /usr"

else

    test_paths="${lua_path}"

fi

if test -n "$PKGCONFIG" -a -z "$lua_path" \

   && $PKGCONFIG --atleast-version=5.1 lua; then

  LUA_LIBS="`$PKGCONFIG --libs lua`"

  LUA_CFLAGS="`$PKGCONFIG --cflags lua`"

  LUA_VERSION="`$PKGCONFIG --modversion lua`"

  AC_MSG_NOTICE([using Lua $LUA_VERSION configuration from pkg-config])

else

  AC_CHECK_LIB(m, pow, lib_m="-lm")

  AC_CHECK_LIB(m, sqrt, lib_m="-lm")

  for x in $test_paths ; do

    CHECK_LUA_PATH([${x}], [include/lua-5.3], [lib/lua-5.3], [lua-5.3])

    CHECK_LUA_PATH([${x}], [include/lua5.3], [lib], [lua5.3])

    CHECK_LUA_PATH([${x}], [include/lua53], [lib/lua53], [lua])

    CHECK_LUA_PATH([${x}], [include], [lib], [lua])

    CHECK_LUA_PATH([${x}], [include/lua-5.2], [lib/lua-5.2], [lua-5.2])

    CHECK_LUA_PATH([${x}], [include/lua5.2], [lib], [lua5.2])

    CHECK_LUA_PATH([${x}], [include/lua52], [lib/lua52], [lua])

    CHECK_LUA_PATH([${x}], [include/lua-5.1], [lib/lua-5.1], [lua-5.1])

    CHECK_LUA_PATH([${x}], [include/lua5.1], [lib], [lua5.1])

    CHECK_LUA_PATH([${x}], [include/lua51], [lib/lua51], [lua])

  done

fi

AC_SUBST(LUA_LIBS)

AC_SUBST(LUA_CFLAGS)

if test -z "${LUA_LIBS}"; then

  AC_MSG_WARN([*** Lua 5.3 5.2 or 5.1 library not found.])

  ifelse([$2], ,

    enable_lua="no"

    if test -z "${lua_path}"; then

        AC_MSG_WARN([Lua 5.3 5.2 or 5.1 library is required])

    else

        AC_MSG_ERROR([Lua 5.3 5.2 or 5.1 library is required])

    fi,

    $2)

else

  AC_MSG_NOTICE([using '${LUA_LIBS}' for Lua Library])

  AC_ARG_ENABLE(luajit,APACHE_HELP_STRING(--enable-luajit,Enable LuaJit Support),

  [

    if test "$enableval" = "yes"; then

      APR_ADDTO(MOD_CPPFLAGS, ["-DAP_ENABLE_LUAJIT"])

    fi

  ])

  ifelse([$1], , , $1) 

fi 

])

lua_objects="lua_apr.lo lua_config.lo mod_lua.lo lua_request.lo lua_vmprep.lo lua_dbd.lo lua_passwd.lo"

APACHE_MODULE(lua, Apache Lua Framework, $lua_objects, , , [

  CHECK_LUA()

  if test "x$enable_lua" != "xno" ; then

    APR_ADDTO(MOD_INCLUDES, [$LUA_CFLAGS])

    APR_ADDTO(MOD_LUA_LDADD, [$LUA_LIBS $CRYPT_LIBS])

  fi

])

APR_ADDTO(INCLUDES, [-I\$(top_srcdir)/$modpath_current])

APACHE_MODPATH_FINISH