Add XLockmore, a screen locker for X11.

Currently, password authentication doesn't work.

svn path=/nixpkgs/trunk/; revision=10701

pkgs/misc/screensavers/xlockmore/default.nix

@@ -0,0 +1,30 @@
+{stdenv, fetchurl, pam, x11, freetype}:
+
+stdenv.mkDerivation {
+  # FIXME: Password authentication doesn't work!
+
+  name = "xlockmore-5.24";
+  src = fetchurl {
+    url = http://www.tux.org/~bagleyd/xlock/xlockmore-5.24.tar.bz2;
+    sha256 = "dbee7bbe35c08afcbe419603fae60aee7898bbd85a3175dc788f02ddbb9f5a39";
+  };
+
+  # Optionally, it can use GTK+ as well.
+  buildInputs = [pam x11 freetype];
+
+  # The `xlock' program needs to be linked against Glibc's
+  # `libgcrypt', which contains `crypt(3)'.
+  patches = [ ./makefile-libcrypt.patch ];
+
+  # Don't try to install `xlock' setuid.  Instead, the user should add
+  # it to `security.extraSetuidPrograms'.
+  configureFlags = 
+    "--disable-setuid " + "--enable-pam " +
+    "--enable-appdefaultdir=$out/lib/X11/app-defaults";
+
+  meta = {
+    description = "Xlockmore, a screen locker for the X Window System.";
+    homepage = http://www.tux.org/~bagleyd/xlockmore.html;
+    license = "GPL";
+  };
+}

pkgs/misc/screensavers/xlockmore/makefile-libcrypt.patch

@@ -0,0 +1,11 @@
+--- xlockmore-5.24/modes/Makefile.in	2007-01-22 23:02:07.000000000 +0100
++++ xlockmore-5.24/modes/Makefile.in	2008-02-11 17:24:34.000000000 +0100
+@@ -326,7 +326,7 @@ CFLAGS = @CFLAGS@
+ CXXFLAGS = @CXXFLAGS@
+ #CFLAGS = -O
+ #CFLAGS = -g
+-XLOCKLDFLAGS = @XLOCKLDFLAGS@ $(CHECKLDFLAG)
++XLOCKLDFLAGS = @XLOCKLDFLAGS@ $(CHECKLDFLAG) -lcrypt
+ XLIBS = @XLIBS@
+ XLOCKLIBS = $(MODULELIB) @XLOCKLIBS@
+ 

pkgs/top-level/all-packages.nix

@@ -5777,6 +5777,10 @@ rec {
     inherit fetchurl stdenv x11 mesa;
   };
 
+  xlockmore = import ../misc/screensavers/xlockmore {
+    inherit fetchurl stdenv pam x11 freetype;
+  };
+
   saneBackends = import ../misc/sane-backends {
     inherit fetchurl stdenv libusb;
 	gt68xxFirmware =