Remove/patch unreproducible config data.

diff --git a/configure b/configure
index eb9f346..ebab94d 100755
--- a/configure
+++ b/configure
@@ -23163,7 +23163,7 @@ H4_VERSION="`cut -d' ' -f3 $srcdir/README.txt | head -1`"
 
 
 ## Configuration date
- CONFIG_DATE="`date`"
+CONFIG_DATE=`date -u -d "@$SOURCE_DATE_EPOCH"`
 
 ## User doing the configuration
  CONFIG_USER="`whoami`@`hostname`"
diff --git a/libhdf4.settings.in b/libhdf4.settings.in
index 1d9bbb9..4180d72 100644
--- a/libhdf4.settings.in
+++ b/libhdf4.settings.in
@@ -5,10 +5,10 @@ General Information:
 -------------------
 		   HDF4 Version: @H4_VERSION@
 		  Configured on: @CONFIG_DATE@
-		  Configured by: @CONFIG_USER@
+		  Configured by: guix
 		 Configure mode: @CONFIG_MODE@
-		    Host system: @host_cpu@-@host_vendor@-@host_os@
-              Uname information: @UNAME_INFO@
+		    Host system: guix
+              Uname information: guix
 		      Libraries: @STATIC_SHARED@
 	     Installation point: @prefix@
 
-- 
2.10.0
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<tr><td><span title='2018-08-28 00:19:58 -0700'>2018-08-28</span></td><td><a href='/guix/commit/gnu/tests?id=b0f951e4f04766892933e3b60d1b24ab3a8589c2'>tests: tor: Add more test cases.</a><span class='msg-avail'>...</span></td><td>Chris Marusich</td></tr>
<tr><td><span title='2018-08-28 00:14:24 -0700'>2018-08-28</span></td><td><a href='/guix/commit/gnu/tests?id=5dfd80e1c5c9803a281804801592d191cf9148ae'>services: tor: Add a system test.</a><span class='msg-avail'>...</span></td><td>Chris Marusich</td></tr>
<tr><td><span title='2018-08-16 02:46:27 +0530'>2018-08-16</span></td><td><a href='/guix/commit/gnu/tests?id=de30205ba0f63eb987097a9f47b6e4fd38cd9044'>gnu: services: Add pcscd service.</a><span class='msg-avail'>...</span></td><td>Arun Isaac</td></tr>
<tr><td><span title='2018-07-13 00:08:55 +0200'>2018-07-13</span></td><td><a href='/guix/commit/gnu/tests?id=147c5aa5d4e3bd21ee4c4cae70dff8da0bcf94b7'>services: mcron: Add 'schedule' action.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2018-07-09 10:39:06 +0200'>2018-07-09</span></td><td><a href='/guix/commit/gnu/tests?id=a33652ee336ae9a5d2ab5fd54bf2397caec42a0e'>services: Add prometheus-node-exporter-service-type.</a><span class='msg-avail'>...</span></td><td>Gábor Boskovits</td></tr>
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<tr><td><span title='2018-06-13 09:11:45 +0200'>2018-06-13</span></td><td><a href='/guix/commit/gnu/tests?id=c24b15472baaa7ec67d48cbf296bbe5ab727b78f'>tests: Honor the return value of 'start-service'.</a><span class='msg-avail'>...</span></td><td>Clément Lassieur</td></tr>
<tr><td><span title='2018-06-01 15:21:28 +0200'>2018-06-01</span></td><td><a href='/guix/commit/gnu/tests?id=ff913cf514b2a1d6d8400b24c675125387049b41'>tests: ssh: Use 'with-extensions'.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2018-06-01 13:50:26 +0200'>2018-06-01</span></td><td><a href='/guix/commit/gnu/tests?id=93b83eb31e35aedaafcc40cfbb9a8743e0f6352d'>services: Add hpcguix-web.</a><span class='msg-avail'>...</span></td><td>Rouby Pierre-Antoine</td></tr>
<tr><td><span title='2018-06-01 13:50:26 +0200'>2018-06-01</span></td><td><a href='/guix/commit/gnu/tests?id=7a4e2eaab34f7fad6951f312203ac0d9dfa3d44a'>marionette: Add 'wait-for-tcp-port'.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>