Do not record the configuration and build time so that builds can be
reproduced bit-for-bit.

--- perl-5.22.0/Configure	1970-01-01 01:00:00.000000000 +0100
+++ perl-5.22.0/Configure	2015-12-13 00:14:43.148165080 +0100
@@ -3834,6 +3817,7 @@ esac
 
 : who configured the system
 cf_time=`LC_ALL=C; LANGUAGE=C; export LC_ALL; export LANGUAGE; $date 2>&1`
+cf_time='Thu Jan  1 00:00:01 UTC 1970'
 case "$cf_by" in
 "")
 	cf_by=`(logname) 2>/dev/null`

--- perl-5.22.0/perl.c	2015-12-13 00:25:30.269156627 +0100
+++ perl-5.22.0/perl.c	2015-12-13 00:25:38.265218175 +0100
@@ -1795,7 +1795,7 @@ S_Internals_V(pTHX_ CV *cv)
     PUSHs(Perl_newSVpvn_flags(aTHX_ non_bincompat_options,
 			      sizeof(non_bincompat_options) - 1, SVs_TEMP));
 
-#ifdef __DATE__
+#if 0
 #  ifdef __TIME__
     PUSHs(Perl_newSVpvn_flags(aTHX_
 			      STR_WITH_LEN("Compiled at " __DATE__ " " __TIME__),

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<div class='path'>path: <a href='/guix/log/?id=9de76735dba9f4c44a51e755e2db472cdb528d49'>root</a>/<a href='/guix/log/gnu?id=9de76735dba9f4c44a51e755e2db472cdb528d49'>gnu</a>/<a href='/guix/log/gnu/packages?id=9de76735dba9f4c44a51e755e2db472cdb528d49'>packages</a>/<a href='/guix/log/gnu/packages/ebook.scm?id=9de76735dba9f4c44a51e755e2db472cdb528d49'>ebook.scm</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/gnu/packages/ebook.scm?id=9de76735dba9f4c44a51e755e2db472cdb528d49&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2020-10-01 00:13:42 +0200'>2020-10-01</span></td><td><a href='/guix/commit/gnu/packages/ebook.scm?id=902436a20957ac58e97fa11ff294f8163e2da00c'>gnu: cozy: Update to 0.7.2.</a><span class='msg-avail'>...</span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2020-09-26 23:13:23 +0200'>2020-09-26</span></td><td><a href='/guix/commit/gnu/packages/ebook.scm?id=6854b44602698c5d7e408a109872ce8eb0ea648e'>gnu: cozy: Update to 0.7.1.</a><span class='msg-avail'>...</span></td><td>Vinicius Monego</td></tr>
<tr><td><span title='2020-09-18 15:21:19 +0200'>2020-09-18</span></td><td><a href='/guix/commit/gnu/packages/ebook.scm?id=d9dec1473d676dd22285e84552d4a8e0a879f0d4'>gnu: calibre: Clean up 'wrap phase.</a><span class='msg-avail'>...</span></td><td>Prafulla Giri</td></tr>
<tr><td><span title='2020-09-18 09:12:02 +0200'>2020-09-18</span></td><td><a href='/guix/commit/gnu/packages/ebook.scm?id=13ba3dc8a3fed66dbdc317f0d97357bbb47e1175'>gnu: Add cozy.</a><span class='msg-avail'>...</span></td><td>Vinicius Monego</td></tr>
<tr><td><span title='2020-09-08 21:54:44 +0200'>2020-09-08</span></td><td><a href='/guix/commit/gnu/packages/ebook.scm?id=fd3eac4dd774597d493e6d8aae7b1c2653070bc7'>gnu: calibre: Wrap QTWEBENGINEPROCESS_PATH.</a><span class='msg-avail'>...</span></td><td>Brendan Tildesley</td></tr>
<tr><td><span title='2020-08-23 21:00:23 -0400'>2020-08-23</span></td><td><a href='/guix/commit/gnu/packages/ebook.scm?id=29f61501f309a719be91a47fd43872437435cd1a'>gnu: ebook.scm: Remove duplicate module import.</a><span class='msg-avail'>...</span></td><td>Brendan Tildesley</td></tr>
<tr><td><span title='2020-06-08 19:18:05 +0200'>2020-06-08</span></td><td><a href='/guix/commit/gnu/packages/ebook.scm?id=d79ec4fd343bc2a72652aa3a4b4ae14bd8df88ac'>gnu: calibre: Update to 4.18.0.</a><span class='msg-avail'>...</span></td><td>Marius Bakke</td></tr>
<tr><td><span title='2020-05-10 22:24:38 +0200'>2020-05-10</span></td><td><a href='/guix/commit/gnu/packages/ebook.scm?id=6266a48db13f2169e3167564e143b8d4b13c0008'>gnu: fbreader: Fix build failure.</a><span class='msg-avail'>...</span></td><td>Marius Bakke</td></tr>
<tr><td><span title='2020-04-08 13:00:50 +0200'>2020-04-08</span></td><td><a href='/guix/commit/gnu/packages/ebook.scm?id=27783023993f9272ce422868d14529159c4a5218'>Merge branch 'master' into core-updates</a><span class='msg-avail'>...</span></td><td>Marius Bakke</td></tr>
<tr><td><span title='2020-04-03 15:28:42 +0200'>2020-04-03</span></td><td><a href='/guix/commit/gnu/packages/ebook.scm?id=3e4ce1cc3eb7b35405c4d2c4f837e53ec9952c99'>gnu: calibre: Fix build with python-msgpack &gt;= 1.0.</a><span class='msg-avail'>...</span></td><td>Marius Bakke</td></tr>
<tr><td><span title='2020-03-04 23:16:17 +0100'>2020-03-04</span></td><td><a href='/guix/commit/gnu/packages/ebook.scm?id=ebb7cf9e21060105d9950dd5142c0eb918083666'>Merge branch 'master' into core-updates</a></td><td>Marius Bakke</td></tr>
<tr><td><span title='2020-02-21 18:33:35 +0100'>2020-02-21</span></td><td><a href='/guix/commit/gnu/packages/ebook.scm?id=2ea6d49913838a7ffe992078a520a3c6bfcfd05c'>gnu: calibre: Use HTTPS home page.</a><span class='msg-avail'>...</span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2020-01-22 22:12:34 +0100'>2020-01-22</span></td><td><a href='/guix/commit/gnu/packages/ebook.scm?id=4bd428a7ce382f623784a3ff8186aadc3cebca91'>gnu: Replace uses of 'libjpeg' with 'libjpeg-turbo'.</a><span class='msg-avail'>...</span></td><td>Marius Bakke</td></tr>
<tr><td><span title='2019-12-23 19:45:57 +0100'>2019-12-23</span></td><td><a href='/guix/commit/gnu/packages/ebook.scm?id=8cd2341028c3f3742f2539efa0f354d8ad419558'>gnu: xchm: Update to 1.31.</a><span class='msg-avail'>...</span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2019-07-31 14:28:56 +0200'>2019-07-31</span></td><td><a href='/guix/commit/gnu/packages/ebook.scm?id=6a2e54236e1b2c428c8fd478ee0f3bd8130703fa'>Merge branch 'master' into core-updates</a></td><td>Marius Bakke</td></tr>
<tr><td><span title='2019-07-25 09:23:17 +0200'>2019-07-25</span></td><td><a href='/guix/commit/gnu/packages/ebook.scm?id=7c0411879b3a393e4a2b082571fc23d4134b182f'>gnu: Add xchm.</a><span class='msg-avail'>...</span></td><td>Jovany Leandro G.C</td></tr>
<tr><td><span title='2019-07-19 12:41:02 +0200'>2019-07-19</span></td><td><a href='/guix/commit/gnu/packages/ebook.scm?id=04842543e8231d99aad4c8ec232f41272886fbd1'>gnu: fbreader: Build with GCC 5.</a><span class='msg-avail'>...</span></td><td>Rutger Helling</td></tr>