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AC_DEFUN([DOVECOT_WANT_LUA], [
have_lua=no
AS_IF([test "$want_lua" != "no"], [
AS_IF([test "$LUA_CFLAGS" = ""], [
dnl Use pkgconfig to first find out all luas that are there
LUAPCS=$($PKG_CONFIG --list-all | $EGREP "lua-?...? " | sort -r)
dnl Then we pick suitable one
for LUAPC in $LUAPCS lua; do
PKG_CHECK_MODULES([LUA], [$LUAPC >= 5.1 $LUAPC != 5.2], [
have_lua=yes
AC_MSG_NOTICE([using library $LUAPC])
break
], [
:
])
done
], [have_lua=yes])
AS_IF([test "$want_lua" = "yes" && test "$have_lua" = "no"], [
AC_MSG_ERROR([cannot build with Lua support: lua not found])
])
])
AS_IF([test "$have_lua" != "no"], [
AC_DEFINE([HAVE_LUA], [1], [Define to 1 if you have Lua])
AS_IF([test "$want_lua" != "plugin"], [
AC_DEFINE([BUILTIN_LUA],, [Lua support is builtin])
])
dnl at this point $want_lua is either "plugin", "auto", or "yes", so
dnl add values to userdb and passdb accordingly
AS_IF([test "$want_lua" = "plugin"], [
with_lua_plugin=yes
userdb="$userdb lua (plugin)"
passdb="$passdb lua (plugin)"
], [
userdb="$userdb lua"
passdb="$passdb lua"
])
dnl Check if various lua functions are present
old_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS $LUA_CFLAGS"
old_LIBS="$LIBS"
LIBS="$LIBS $LUA_LIBS"
AC_CHECK_FUNC([lua_newstate],,AC_MSG_ERROR([cannot build with Lua support: missing critical function]))
AC_CHECK_FUNCS([luaL_setfuncs])
AC_CHECK_FUNCS([luaL_setmetatable])
AC_CHECK_FUNCS([lua_isinteger])
AC_CHECK_FUNCS([lua_resume])
AC_CHECK_FUNCS([lua_seti])
AC_CHECK_FUNCS([lua_tointegerx])
AC_CHECK_FUNCS([lua_yieldk])
AS_IF([test "$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="$old_LIBS"
])
AM_CONDITIONAL([AUTH_LUA_PLUGIN], [test "$with_lua_plugin" = "yes"])
AM_CONDITIONAL([HAVE_LUA], [test "$have_lua" != "no"])
AM_CONDITIONAL([DLUA_WITH_YIELDS], [test "$dlua_with_yields" = "yes"])
])
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