pahole: remove submodule

1.22 merged the EMBEDDED_LIBBPF patch back

pkgs/development/tools/misc/pahole/default.nix

@@ -1,4 +1,4 @@
-{ lib, stdenv, fetchgit, cmake, elfutils, zlib }:
+{ lib, stdenv, fetchgit, pkg-config, libbpf, cmake, elfutils, zlib }:
 
 stdenv.mkDerivation rec {
   pname = "pahole";
@@ -7,14 +7,13 @@ stdenv.mkDerivation rec {
     url = "https://git.kernel.org/pub/scm/devel/pahole/pahole.git";
     rev = "v${version}";
     sha256 = "sha256-U1/i9WNlLphPIcNysC476sqil/q9tMYmu+Y6psga8I0=";
-    fetchSubmodules = true;
   };
 
-  nativeBuildInputs = [ cmake ];
-  buildInputs = [ elfutils zlib ];
+  nativeBuildInputs = [ cmake pkg-config ];
+  buildInputs = [ elfutils zlib libbpf ];
 
   # Put libraries in "lib" subdirectory, not top level of $out
-  cmakeFlags = [ "-D__LIB=lib" ];
+  cmakeFlags = [ "-D__LIB=lib" "-DLIBBPF_EMBEDDED=OFF" ];
 
   meta = with lib; {
     homepage = "https://git.kernel.org/cgit/devel/pahole/pahole.git/";
@@ -22,6 +21,6 @@ stdenv.mkDerivation rec {
     license = licenses.gpl2Only;
 
     platforms = platforms.linux;
-    maintainers = [ maintainers.bosu ];
+    maintainers = with maintainers; [ bosu martinetd ];
   };
 }