Added ssh support to fetchsvn

svn path=/nixpkgs/trunk/; revision=5734

pkgs/build-support/fetchsvn/builder.sh

@@ -2,6 +2,10 @@ source $stdenv/setup
 
 header "exporting $url (r$rev) into $out"
 
+if test "$sshSupport"; then
+    export SVN_SSH="$openssh/bin/ssh"
+fi
+
 # Pipe the "p" character into Subversion to force it to accept the
 # server's certificate.  This is perfectly safe: we don't care
 # whether the server is being spoofed --- only the cryptographic

pkgs/build-support/fetchsvn/default.nix

@@ -1,4 +1,4 @@
-{stdenv, subversion, nix}: {url, rev ? "HEAD", md5}:
+{stdenv, subversion, nix, sshSupport ? false, openssh ? null}: {url, rev ? "HEAD", md5}:
 
 stdenv.mkDerivation {
   name = "svn-export";
@@ -12,5 +12,5 @@ stdenv.mkDerivation {
   outputHashMode = "recursive";
   outputHash = md5;
   
-  inherit url rev;
+  inherit url rev sshSupport openssh;
 }