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='2019-05-18 12:10:15 +0200'>2019-05-18</span></td><td><a href='/guix/commit/tests/gremlin.scm?id=6b97415996583b15a97dad8254f610275353e913'>gremlin: Adjust tests for foreign distros.</a><span class='msg-avail'>...</span></td><td>Ting-Wei Lan</td></tr>
<tr><td><span title='2018-08-25 16:44:07 +0200'>2018-08-25</span></td><td><a href='/guix/commit/tests/gremlin.scm?id=839167ff9d74fc490b32f6a197591964f73b65e5'>Merge branch 'staging' into core-updates</a></td><td>Marius Bakke</td></tr>
<tr><td><span title='2018-08-21 23:27:08 +0200'>2018-08-21</span></td><td><a href='/guix/commit/tests/gremlin.scm?id=f7dfda2c73a0c4f09b105cafb29c45cf594e4ba9'>gremlin: 'elf-dynamic-info-needed' test is no longer skipped.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2018-05-07 11:21:36 +0200'>2018-05-07</span></td><td><a href='/guix/commit/tests/gremlin.scm?id=b178fc236908ad2da86734ea8e01abd3ff8981da'>gremlin: Add 'strip-runpath'.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2016-04-03 14:19:09 +0200'>2016-04-03</span></td><td><a href='/guix/commit/tests/gremlin.scm?id=a9edb211e733b8b34e67ec3b4450567e9376986f'>build: Add a Guile custom test driver using SRFI-64.</a><span class='msg-avail'>...</span></td><td>Mathieu Lirzin</td></tr>