feat: fixed pcap linking and added nix packages

system-libs.nix

@@ -9,6 +9,7 @@ let
       mkdir -p $out
       tar xvJpf ${freebsd-libs-packed} -C $out ./usr/lib
       tar xvJpf ${freebsd-libs-packed} -C $out ./usr/include
+      tar xvJpf ${freebsd-libs-packed} -C $out ./lib
     '';
   };
 
@@ -80,8 +81,42 @@ in {
     '';
   };
 
-  libpcap-linux = pkgs.stdenv.mkDerivation {
-    name = "libpcap-static-linux";
+  libpcap-linux-gnu = pkgs.stdenv.mkDerivation {
+    name = "libpcap-static-linux-gnu";
+
+    buildInputs = with pkgs; [ clang automake bison cmake flex glibc.static ];
+
+    src = libpcap-src;
+
+    configurePhase = ''
+      cmake \
+          -DCMAKE_BUILD_TYPE=MinSizeRel \
+          -DBUILD_SHARED_LIBS=OFF \
+          -DDISABLE_BLUETOOTH=ON \
+          -DDISABLE_DAG=ON \
+          -DDISABLE_DBUS=ON \
+          -DDISABLE_DPDK=ON \
+          -DDISABLE_NETMAP=ON \
+          -DDISABLE_RDMA=ON \
+          -DDISABLE_LINUX_USBMON=ON \
+          -DDISABLE_SNF=ON \
+          -DPCAP_TYPE=linux \
+          .
+    '';
+
+    buildPhase = ''
+      cmake --build . --target pcap_static
+    '';
+
+    installPhase = ''
+      mkdir -p $out/lib
+
+      cp libpcap.a $out/lib
+    '';
+  };
+
+  libpcap-linux-musl = pkgs.stdenv.mkDerivation {
+    name = "libpcap-static-linux-musl";
 
     buildInputs = with pkgs; [ clang automake bison cmake flex musl ];