bcc: fix module installation

BCC_KERNEL_MODULES_DIR should have not been removed

+2
+2
pkgs/os-specific/linux/bcc/default.nix
··· 19 20 nativeBuildInputs = [ makeWrapper cmake flex bison ]; 21 22 postInstall = '' 23 mkdir -p $out/bin $out/share 24 rm -r $out/share/bcc/tools/old
··· 19 20 nativeBuildInputs = [ makeWrapper cmake flex bison ]; 21 22 + cmakeFlags="-DBCC_KERNEL_MODULES_DIR=${kernel.dev}/lib/modules"; 23 + 24 postInstall = '' 25 mkdir -p $out/bin $out/share 26 rm -r $out/share/bcc/tools/old