bitcoin: add a patch for miniupnpc compatibility

finance/bitcoin/Portfile

@@ -13,7 +13,7 @@ legacysupport.use_mp_libcxx \
 name                    bitcoin
 categories              finance crypto
 version                 27.1
-revision                0
+revision                1
 license                 MIT
 maintainers             {easieste @easye} yopmail.com:sami.laine openmaintainer
 description             server daemon and client user interface for a peer-to-peer digital currency
@@ -63,6 +63,9 @@ configure.args          --disable-ccache \
 
 compiler.cxx_standard   2020
 
+# https://github.com/bitcoin/bitcoin/pull/30283
+patchfiles-append       patch-miniupnpc-18.diff
+
 # pool.h:161:27: error: aligned allocation function
 # of type 'void *(std::size_t, std::align_val_t)'
 # is only available on macOS 10.13 or newer

finance/bitcoin/files/patch-miniupnpc-18.diff

@@ -0,0 +1,32 @@
+From 8acdf66540834b9f9cf28f16d389e8b6a48516d5 Mon Sep 17 00:00:00 2001
+From: Cory Fields <cory-nospam-@coryfields.com>
+Date: Thu, 13 Jun 2024 13:25:37 +0000
+Subject: [PATCH] upnp: add compatibility for miniupnpc 2.2.8
+
+See: https://github.com/miniupnp/miniupnp/commit/c0a50ce33e3b99ce8a96fd43049bb5b53ffac62f
+
+The return value of 2 now indicates:
+"A valid connected IGD has been found but its IP address is reserved (non routable)"
+
+We continue to ignore any return value other than 1.
+---
+ src/mapport.cpp | 5 ++++-
+ 1 file changed, 4 insertions(+), 1 deletion(-)
+
+diff --git a/src/mapport.cpp b/src/mapport.cpp
+index 80670230c73a8..1920297be6d35 100644
+--- src/mapport.cpp
++++ src/mapport.cpp
+@@ -161,8 +161,11 @@ static bool ProcessUpnp()
+     struct UPNPUrls urls;
+     struct IGDdatas data;
+     int r;
+-
++#if MINIUPNPC_API_VERSION <= 17
+     r = UPNP_GetValidIGD(devlist, &urls, &data, lanaddr, sizeof(lanaddr));
++#else
++    r = UPNP_GetValidIGD(devlist, &urls, &data, lanaddr, sizeof(lanaddr), nullptr, 0);
++#endif
+     if (r == 1)
+     {
+         if (fDiscover) {