This patch fixes a failing unit test by feeding buildNormalizedPath to the
tzdata properly.  Three other tests are disabled, one assumes /root and the
two others use networking.  Not bad out of almost 700 tests!

by Pjotr Prins <pjotr.guix@thebird.nl>

--- a/std/datetime.d.orig      2016-11-24 01:13:52.584495545 +0100
+++ b/std/datetime.d   2016-11-24 01:17:09.655306728 +0100
@@ -28081,22 +28081,24 @@
         import std.range : retro;
         import std.format : format;

-        name = strip(name);
-
         enforce(tzDatabaseDir.exists(), new DateTimeException(format("Directory %s does not exist.", tzDatabaseDir)));
         enforce(tzDatabaseDir.isDir, new DateTimeException(format("%s is not a directory.", tzDatabaseDir)));

         version(Android)
         {
+            name = strip(name);
             auto tzfileOffset = name in tzdataIndex(tzDatabaseDir);
             enforce(tzfileOffset, new DateTimeException(format("The time zone %s is not listed.", name)));
             string tzFilename = separate_index ? "zoneinfo.dat" : "tzdata";
             immutable file = buildNormalizedPath(tzDatabaseDir, tzFilename);
         }
         else
-            immutable file = buildNormalizedPath(tzDatabaseDir, name);
+        {
+            auto filename = "./" ~ strip(name); // make sure the prefix is not stripped
+            immutable file = buildNormalizedPath(tzDatabaseDir, filename);
+        }

-        enforce(file.exists(), new DateTimeException(format("File %s does not exist.", file)));
+        enforce(file.exists(), new DateTimeException(format("File %s does not exist in %s.", file, tzDatabaseDir)));
         enforce(file.isFile, new DateTimeException(format("%s is not a file.", file)));

         auto tzFile = File(file);
diff --git a/std/path.d b/std/path.d
index 254d8f0..b0fc04d 100644
--- a/std/path.d
+++ b/std/path.d
@@ -3080,8 +3080,11 @@ unittest
         }
         else
         {
+            pragma(msg, "test disabled on GNU Guix");
+/*
             assert(expandTilde("~root") == "/root", expandTilde("~root"));
             assert(expandTilde("~root/") == "/root/", expandTilde("~root/"));
+*/
         }
         assert(expandTilde("~Idontexist/hey") == "~Idontexist/hey");
     }
diff --git a/std/socket.d b/std/socket.d
index b85d1c9..7fbf346 100644
--- a/std/socket.d
+++ b/std/socket.d
@@ -859,6 +862,8 @@ class InternetHost

 unittest
 {
+    pragma(msg, "test disabled on GNU Guix");
+    /*
     InternetHost ih = new InternetHost;

     ih.getHostByAddr(0x7F_00_00_01);
@@ -889,6 +894,7 @@ unittest
         //      writefln("aliases[%d] = %s", i, s);
         // }
     });
+    */
 }
34f34bb8dc87f7d1739880bca1&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2018-03-20 17:17:58 +0100'>2018-03-20</span></td><td><a href='/guix/commit/gnu/services/version-control.scm?id=4a78fd4617908546be15d2c101f5cab512c71f8e'>Correct name and Email for ng0.</a><span class='msg-avail'>...</span></td><td>ng0</td></tr>
<tr><td><span title='2018-02-28 04:40:56 +0300'>2018-02-28</span></td><td><a href='/guix/commit/gnu/services/version-control.scm?id=e1cf4fd2d2fc0aab0f91c8ac961a8134cbefe200'>services: cgit: Add more configuration fields.</a><span class='msg-avail'>...</span></td><td>Oleg Pykhalov</td></tr>
<tr><td><span title='2018-01-21 00:24:03 +0100'>2018-01-21</span></td><td><a href='/guix/commit/gnu/services/version-control.scm?id=d466b1fc8221a6224fe7ded53a828f9c29ed9457'>services: Missing services are automatically instantiated.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2017-12-18 12:03:14 +0100'>2017-12-18</span></td><td><a href='/guix/commit/gnu/services/version-control.scm?id=8b223ceac4ff0781e95d69362875f87cff03f4d6'>services: nginx: Replace 'http-port' and 'https-port' with 'listen'.</a><span class='msg-avail'>...</span></td><td>Clément Lassieur</td></tr>
<tr><td><span title='2017-11-28 23:34:25 +0100'>2017-11-28</span></td><td><a href='/guix/commit/gnu/services/version-control.scm?id=a222b734b38f93b014b21e4d538002a5fec71b8a'>services: cgit, git-daemon: Add description and default value.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2017-11-28 23:34:25 +0100'>2017-11-28</span></td><td><a href='/guix/commit/gnu/services/version-control.scm?id=410349347a7f38b7052d7574a629dd2660d018e0'>services: Add Git HTTP(S) service support.</a><span class='msg-avail'>...</span></td><td>Andy Wingo</td></tr>
<tr><td><span title='2017-10-03 17:07:54 +0200'>2017-10-03</span></td><td><a href='/guix/commit/gnu/services/version-control.scm?id=032a2760eef6dc64fa36f2fb3a211b755d5124bb'>gnu: services: Add cgit.</a><span class='msg-avail'>...</span></td><td>Oleg Pykhalov</td></tr>
<tr><td><span title='2016-11-21 20:37:43 +0800'>2016-11-21</span></td><td><a href='/guix/commit/gnu/services/version-control.scm?id=e01e2c6c525f1c0ef0ab62b832435a4ece0348ec'>gnu: services: Add git-service.</a><span class='msg-avail'>...</span></td><td>ng0</td></tr>