sys-auth/polkit: Add package with dutape JS backend and musl libc support

sys-auth/polkit/files/polkit-0.118-duktape-posix.patch

@@ -0,0 +1,35 @@
+From 48639a6e1b2bdb8e26fdad40e08717799a7202ad Mon Sep 17 00:00:00 2001
+From: Alexander Miroshnichenko <a.miroshnichenko@rbk.money>
+Date: Sat, 16 Jan 2021 11:54:32 +0300
+Subject: [PATCH] POSIX support for duktape JS backend
+Content-Type: text/plain; charset="utf-8"
+Content-Transfer-Encoding: 8bit
+
+Signed-off-by: Alexander Miroshnichenko <a.miroshnichenko@rbk.money>
+---
+ src/polkitbackend/polkitbackendduktapeauthority.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/src/polkitbackend/polkitbackendduktapeauthority.c b/src/polkitbackend/polkitbackendduktapeauthority.c
+index ae984535ed88..b5b73bfea0d1 100644
+--- a/src/polkitbackend/polkitbackendduktapeauthority.c
++++ b/src/polkitbackend/polkitbackendduktapeauthority.c
+@@ -1013,6 +1013,7 @@ js_polkit_user_is_in_netgroup (duk_context *cx)
+   user = duk_require_string (cx, 0);
+   netgroup = duk_require_string (cx, 1);
+ 
++#if defined HAVE_INNETGR
+   if (innetgr (netgroup,
+                NULL,  /* host */
+                user,
+@@ -1020,6 +1021,7 @@ js_polkit_user_is_in_netgroup (duk_context *cx)
+     {
+       is_in_netgroup = TRUE;
+     }
++#endif
+ 
+   duk_push_boolean (cx, is_in_netgroup);
+   return 1;
+-- 
+2.26.2
+