pkgs/openssh: add patch to fix build

flake.nix

@@ -379,7 +379,7 @@
           inherit (spkgs) matrix-synapse;
 
           xin = upkgs.callPackage ./bins/xin { inherit upkgs; };
-          openssh = upkgs.callPackage ./pkgs/openssh.nix { inherit upkgs; };
+          openssh = upkgs.pkgsMusl.callPackage ./pkgs/openssh.nix { inherit upkgs; };
         });
 
       templates = {

pkgs/openssh.nix

@@ -33,6 +33,7 @@ stdenv.mkDerivation {
 
       # See discussion in https://github.com/NixOS/nixpkgs/pull/16966
       ./openssh/dont_create_privsep_path.patch
+      ./openssh/fix-164ea4380564a2a83713eacf71908e3946e5e4e4.diff
     ];
 
   postPatch =

pkgs/openssh/fix-164ea4380564a2a83713eacf71908e3946e5e4e4.diff

@@ -0,0 +1,12 @@
+diff --git a/sshd-auth.c b/sshd-auth.c
+index 53658cf11..b071c59b1 100644
+--- a/sshd-auth.c
++++ b/sshd-auth.c
+@@ -464,7 +464,6 @@ main(int ac, char **av)
+ 	__progname = ssh_get_progname(av[0]);
+ 
+ 	/* Save argv. Duplicate so setproctitle emulation doesn't clobber it */
+-	saved_argc = ac;
+ 	saved_argv = xcalloc(ac + 1, sizeof(*saved_argv));
+ 	for (i = 0; (int)i < ac; i++)
+ 		saved_argv[i] = xstrdup(av[i]);