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AC_DEFUN([DOVECOT_WANT_LUA],[
AC_ARG_WITH([lua],
[AS_HELP_STRING([--with-lua=yes|plugin], [build Lua Bindings])],
[with_lua=$withval],
[with_lua=no]
)
AC_MSG_CHECKING([whether we will be linking in Lua])
AS_IF([test "x$with_lua" = "xplugin"], [
with_lua_plugin=yes
with_lua=yes
])
AC_MSG_RESULT([$with_lua])
AS_IF([test "x$with_lua" != "xno"], [
AS_IF([test -n "$LUA_CFLAGS" -o -n "$LUA_LIBS"], [
with_lua=yes
], [
for LUAPC in lua5.3 lua-5.3 lua53 lua5.1 lua-5.1 lua51 lua; do
PKG_CHECK_MODULES([LUA], [$LUAPC >= 5.1 $LUAPC != 5.2] , [
with_lua=yes
], [LUAPC=""]) # otherwise pkg_check will fail
if test "x$LUA_LIBS" != "x"; then break; fi
done
])
])
AS_IF([test "x$with_lua" = "xyes"], [
AC_MSG_CHECKING([for chosen LUA])
AC_DEFINE([HAVE_LUA], [1], [Define to 1 if you have lua])
AS_IF([test "x$LUAPC" != "x"], [
AC_MSG_RESULT([$LUAPC])
],[
AC_MSG_RESULT([specified via LUA_CFLAGS and LUA_LIBS])
])
])
AS_IF([test "x$with_lua" = "xyes"],
AS_IF([test "x$with_lua_plugin" != "xyes"],
AC_DEFINE([BUILTIN_LUA],, [Lua support is builtin])
)
dnl Check if various lua functions are present
old_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS $LUA_CFLAGS"
old_LIBS="$LIBS"
LIBS="$LIBS $LUA_LIBS"
AC_CHECK_FUNCS([luaL_setfuncs])
AC_CHECK_FUNCS([luaL_setmetatable])
AC_CHECK_FUNCS([lua_isinteger])
AC_CHECK_FUNCS([lua_resume])
AC_CHECK_FUNCS([lua_seti])
AC_CHECK_FUNCS([lua_tointegerx])
AC_CHECK_FUNCS([lua_yieldk])
AS_IF([test "$ac_cv_func_lua_resume" = "yes" -a \
"$ac_cv_func_lua_yieldk" = "yes"],
AC_DEFINE([DLUA_WITH_YIELDS],,
[Lua scripts will be able to yield])
dlua_with_yields=yes
)
CFLAGS="$old_CFLAGS"
LIBS="$old_LIBS"
)
])
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