* In NixOS chroot builds, there is no root account. So rcs' configure

should not rely on its existence in deciding whether to use
  getpwuid().  Not using getpwuid() causes rcs to fail with "ci:
  setuid not supported".

svn path=/nixpkgs/trunk/; revision=19957

pkgs/applications/version-management/rcs/default.nix

@@ -2,8 +2,18 @@
 
 stdenv.mkDerivation {
   name = "rcs-5.7";
+  
   src = fetchurl {
     url = ftp://ftp.cs.purdue.edu/pub/RCS/rcs-5.7.tar;
     md5 = "f7b3f106bf87ff6344df38490f6a02c5";
   };
+
+  patches = [ ./no-root.patch ];
+
+  meta = {
+    homepage = http://www.cs.purdue.edu/homes/trinkle/RCS/;
+    description = "Revision Control System, a version management system";
+    maintainers = [ stdenv.lib.maintainers.eelco ];
+    platforms = [ stdenv.lib.platforms.all ];
+  };
 }

pkgs/applications/version-management/rcs/no-root.patch

@@ -0,0 +1,23 @@
+In NixOS chroot builds, there is no root account.  So configure should
+not rely on its existence in deciding whether to use getpwuid().
+
+diff -rc -x '*~' rcs-5.7-orig/src/conf.sh rcs-5.7/src/conf.sh
+*** rcs-5.7-orig/src/conf.sh	1995-06-16 08:19:24.000000000 +0200
+--- rcs-5.7/src/conf.sh	2010-02-12 15:22:37.000000000 +0100
+***************
+*** 821,827 ****
+  	a= z=
+  	cat >a.c <<EOF
+  #include "$A_H"
+! int main() { exitmain(!getpwuid(0)); }
+  EOF
+  	$PREPARE_CC || exit
+  	if ($CL a.c $L && $aout) >&2
+--- 821,827 ----
+  	a= z=
+  	cat >a.c <<EOF
+  #include "$A_H"
+! int main() { exitmain(!getpwuid(getuid())); }
+  EOF
+  	$PREPARE_CC || exit
+  	if ($CL a.c $L && $aout) >&2