soapyhackrf: backport cmake < 3.5 fix

pkgs/by-name/so/soapyhackrf/package.nix

@@ -2,6 +2,7 @@
   lib,
   stdenv,
   fetchFromGitHub,
+  fetchpatch,
   cmake,
   pkg-config,
   hackrf,
@@ -32,6 +33,13 @@ stdenv.mkDerivation {
     soapysdr
   ];
 
+  patches = [
+    (fetchpatch {
+      url = "https://github.com/pothosware/SoapyHackRF/commit/143ff5e7e0f786e341df8846c04e8273c5183c26.patch";
+      hash = "sha256-8tMN6uEWUt1sUC45kBM6WHXDd/oTFyo6u+NpVPg+z5Q=";
+    })
+  ];
+
   cmakeFlags = [ "-DSoapySDR_DIR=${soapysdr}/share/cmake/SoapySDR/" ];
 
   meta = with lib; {