soapyrtlsdr: fix cmake 4 compatibility

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

@@ -2,6 +2,7 @@
   lib,
   stdenv,
   fetchFromGitHub,
+  fetchpatch2,
   cmake,
   pkg-config,
   rtl-sdr,
@@ -28,6 +29,20 @@ stdenv.mkDerivation (finalAttrs: {
     soapysdr
   ];
 
+  patches = [
+    (fetchpatch2 {
+      name = "cmake-update.patch";
+      url = "https://github.com/pothosware/SoapyRTLSDR/commit/448c9d0d326c2600905b7ce84222ff9d72ba2189.patch?full_index=1";
+      hash = "sha256-hWlNowkf9yZM6p+EGh+IiUm2JfG5mLe8Qq8gTVIdIak=";
+    })
+
+    (fetchpatch2 {
+      name = "fix-cmake4-build.patch";
+      url = "https://github.com/pothosware/SoapyRTLSDR/commit/bb2d1511b957138051764c9193a3d6971e912b85.patch?full_index=1";
+      hash = "sha256-C90B5WMjx1lJKiX0F/cAfGmz2WRc2BA84FTmVmnC+DI=";
+    })
+  ];
+
   cmakeFlags = [ "-DSoapySDR_DIR=${soapysdr}/share/cmake/SoapySDR/" ];
 
   meta = with lib; {