ocamlPackages.tcpip: 6.0.0 -> 6.1.0

https://github.com/mirage/mirage-tcpip/releases/tag/v6.1.0

pkgs/development/ocaml-modules/tcpip/default.nix

@@ -1,5 +1,5 @@
 { lib, buildDunePackage, fetchurl
-, bisect_ppx, ppx_cstruct
+, bisect_ppx, ppx_cstruct, pkg-config
 , rresult, cstruct, cstruct-lwt, mirage-net, mirage-clock
 , mirage-random, mirage-stack, mirage-protocols, mirage-time
 , ipaddr, macaddr, macaddr-cstruct, mirage-profile, fmt
@@ -7,22 +7,29 @@
 , alcotest, mirage-flow, mirage-vnetif, pcap-format
 , mirage-clock-unix, arp, ipaddr-cstruct, mirage-random-test
 , lru
+, withFreestanding ? false
+, ocaml-freestanding
 }:
 
 buildDunePackage rec {
   pname = "tcpip";
-  version = "6.0.0";
+  version = "6.1.0";
 
   useDune2 = true;
 
   src = fetchurl {
     url = "https://github.com/mirage/mirage-${pname}/releases/download/v${version}/${pname}-v${version}.tbz";
-    sha256 = "0wbrs8jz1vw3zdrqmqcwawxh4yhc2gy30rw7gz4w116cblkvnb8s";
+    sha256 = "7b3ed2e1ca835c1cc65ac911bcb0de12ebc2b580dd195006bdea2cb387510474";
   };
 
+  patches = [
+    ./makefile-no-opam.patch
+  ];
+
   nativeBuildInputs = [
     bisect_ppx
     ppx_cstruct
+    pkg-config
   ];
 
   propagatedBuildInputs = [
@@ -48,6 +55,8 @@ buildDunePackage rec {
     randomconv
     ethernet
     lru
+  ] ++ lib.optionals withFreestanding [
+    ocaml-freestanding
   ];
 
   doCheck = true;

pkgs/development/ocaml-modules/tcpip/makefile-no-opam.patch

@@ -0,0 +1,12 @@
+diff --git a/freestanding/Makefile b/freestanding/Makefile
+index f22d220d..3e97b4c5 100644
+--- a/freestanding/Makefile
++++ b/freestanding/Makefile
+@@ -1,4 +1,6 @@
+-PKG_CONFIG_PATH := $(shell opam config var prefix)/lib/pkgconfig
++ifneq (, $(shell command -v opam))
++	PKG_CONFIG_PATH ?= $(shell opam config var prefix)/lib/pkgconfig
++endif
+ 
+ EXISTS := $(shell PKG_CONFIG_PATH=$(PKG_CONFIG_PATH) pkg-config --exists ocaml-freestanding; echo $$?)
+