$NetBSD: patch-configure.ac,v 1.1 2021/06/28 12:38:46 nia Exp $

Add duktape as javascript engine.
https://gitlab.freedesktop.org/polkit/polkit/-/merge_requests/35

--- configure.ac.orig	2021-06-03 13:56:15.000000000 +0000
+++ configure.ac
@@ -80,11 +80,22 @@ PKG_CHECK_MODULES(GLIB, [gmodule-2.0 gio
 AC_SUBST(GLIB_CFLAGS)
 AC_SUBST(GLIB_LIBS)
 
-PKG_CHECK_MODULES(LIBJS, [mozjs-78])
-
-AC_SUBST(LIBJS_CFLAGS)
-AC_SUBST(LIBJS_CXXFLAGS)
-AC_SUBST(LIBJS_LIBS)
+dnl ---------------------------------------------------------------------------
+dnl - Check javascript backend
+dnl ---------------------------------------------------------------------------
+AC_ARG_WITH(duktape, AS_HELP_STRING([--with-duktape],[Use Duktape as javascript backend]),with_duktape=yes,with_duktape=no)
+AS_IF([test x${with_duktape} = xyes], [
+  PKG_CHECK_MODULES(LIBJS, [duktape >= 2.0.0 ])
+  AC_SUBST(LIBJS_CFLAGS)
+  AC_SUBST(LIBJS_LIBS)
+], [
+  PKG_CHECK_MODULES(LIBJS, [mozjs-78])
+
+  AC_SUBST(LIBJS_CFLAGS)
+  AC_SUBST(LIBJS_CXXFLAGS)
+  AC_SUBST(LIBJS_LIBS)
+])
+AM_CONDITIONAL(USE_DUKTAPE, [test x$with_duktape = xyes], [Using duktape as javascript engine library])
 
 EXPAT_LIB=""
 AC_ARG_WITH(expat, [  --with-expat=<dir>      Use expat from here],
@@ -581,6 +592,13 @@ echo "
         PAM support:                ${have_pam}
         systemdsystemunitdir:       ${systemdsystemunitdir}
         polkitd user:               ${POLKITD_USER}"
+if test "x${with_duktape}" = xyes; then
+echo "
+        Javascript engine:          Duktape"
+else
+echo "
+        Javascript engine:          Mozjs"
+fi
 
 if test "$have_pam" = yes ; then
 echo "