Remove/patch metadata timestamps for reproducibility.

diff -ur fpcbuild-3.0.0.old/fpcsrc/packages/fpmkunit/src/fpmkunit.pp fpcbuild-3.0.0/fpcsrc/packages/fpmkunit/src/fpmkunit.pp
--- fpcbuild-3.0.0.old/fpcsrc/packages/fpmkunit/src/fpmkunit.pp	2015-11-04 16:17:00.000000000 -0500
+++ fpcbuild-3.0.0/fpcsrc/packages/fpmkunit/src/fpmkunit.pp	2017-01-26 16:25:29.327339282 -0500
@@ -3779,7 +3779,7 @@
       Values[KeyName]:=Name;
       Values[KeyVersion]:=Version;
       // TODO Generate checksum based on PPUs
-      InstalledChecksum:=DateTimeToFileDate(Now);
+      InstalledChecksum:=0;
       Values[KeyChecksum]:=IntToStr(InstalledChecksum);
       Values[KeyCPU]:=CPUToString(ACPU);
       Values[KeyOS]:=OSToString(AOS);
diff -ur fpcbuild-3.0.0.old/fpcsrc/utils/fpcmkcfg/fpcmkcfg.pp fpcbuild-3.0.0/fpcsrc/utils/fpcmkcfg/fpcmkcfg.pp
--- fpcbuild-3.0.0.old/fpcsrc/utils/fpcmkcfg/fpcmkcfg.pp	2013-06-01 18:27:16.000000000 -0400
+++ fpcbuild-3.0.0/fpcsrc/utils/fpcmkcfg/fpcmkcfg.pp	2017-01-26 16:24:22.949044903 -0500
@@ -234,8 +234,8 @@
   TemplateParser.Values['FPCTARGETOS'] := BuildOSTarget;
   TemplateParser.Values['FPCBIN'] := 'fpc';
   TemplateParser.Values['PWD'] := GetCurrentDir;
-  TemplateParser.Values['BUILDDATE'] := DateToStr(Date);
-  TemplateParser.Values['BUILDTIME'] := TimeToStr(Time);
+  TemplateParser.Values['BUILDDATE'] := '';
+  TemplateParser.Values['BUILDTIME'] := '';
 
   TemplateParser.Values['LOCALREPOSITORY'] := GetDefaultLocalRepository;
   TemplateParser.Values['LOCALBASEPATH'] := GetDefaultLocalBasepath;
ss='right' method='get' action='/guix/log/gnu/packages/attr.scm'>
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<option value='grep'>log msg</option>
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<div class='path'>path: <a href='/guix/log/?id=ee25e3fcab9d2e24c2826b771b52d797c152193b'>root</a>/<a href='/guix/log/gnu?id=ee25e3fcab9d2e24c2826b771b52d797c152193b'>gnu</a>/<a href='/guix/log/gnu/packages?id=ee25e3fcab9d2e24c2826b771b52d797c152193b'>packages</a>/<a href='/guix/log/gnu/packages/attr.scm?id=ee25e3fcab9d2e24c2826b771b52d797c152193b'>attr.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/attr.scm?id=ee25e3fcab9d2e24c2826b771b52d797c152193b&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2019-03-01 16:31:52 +0100'>2019-03-01</span></td><td><a href='/guix/commit/gnu/packages/attr.scm?id=1130929acfff30b3f179e6bb949b1b7d78b85b69'>gnu: attr: Update to 2.4.48.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/attr.scm (attr): Update to 2.4.48.
[source](uri): Adjust for renamed tarball.
[arguments]: Remove obsolete phases.
[license]: Remove GPL2+ (see upstream commit 0fb61a4d20).
</span></span></td><td>Marius Bakke</td></tr>
<tr><td><span title='2018-03-16 05:02:40 -0400'>2018-03-16</span></td><td><a href='/guix/commit/gnu/packages/attr.scm?id=812cee6a07cb4b4ba4724768f9e745e2b25fe931'>gnu: attr: Use invoke instead of system*.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/attr.scm (attr)[arguments]: Use invoke.  Return a boolean from
all phase procedures.  Add a comment explaining why one call to system* is
retained.
</span></span></td><td>Mark H Weaver</td></tr>
<tr><td><span title='2018-02-16 11:11:40 +0100'>2018-02-16</span></td><td><a href='/guix/commit/gnu/packages/attr.scm?id=340978d7b054dcde6c3334267b40a8293eb0ce85'>gnu: Use HTTPS for supported nongnu.org home pages.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/acl.scm (acl)[home-page]: Use HTTPS.
* gnu/packages/admin.scm (dmidecode)[home-page]: Likewise.
* gnu/packages/attr.scm (attr)[home-page]: Likewise.
* gnu/packages/audio.scm (lash)[home-page]: Likewise.
* gnu/packages/avr.scm (avr-libc)[home-page]: Likewise.
* gnu/packages/backup.scm (rdiff-backup, libchop)[home-page]: Likewise.
* gnu/packages/compression.scm (fastjar, lzip, lziprecover, atool)
(lunzip, clzip, lzlib, plzip)[home-page]: Likewise.
* gnu/packages/emacs.scm (geiser, bbdb, m17n-lib, m17n-lib)[home-page]:
Likewise.
* gnu/packages/flashing-tools.scm (avrdude)[home-page]: Likewise.
* gnu/packages/fontutils.scm (libotf)[home-page]: Likewise.
* gnu/packages/game-development.scm (gzochi)[home-page]: Likewise.
* gnu/packages/games.scm (enigma)[home-page]: Likewise.
* gnu/packages/gsasl.scm (libntlm)[home-page]: Likewise.
* gnu/packages/gtk.scm (guile-cairo)[home-page]: Likewise.
* gnu/packages/guile.scm (guile-reader, guile-lib, guile-json)
(guile-redis, g-wrap)[home-page]: Likewise.
* gnu/packages/libunwind.scm (libunwind)[home-page]: Likewise.
* gnu/packages/lout.scm (lout)[home-page]: Likewise.
* gnu/packages/mpd.scm (sonata)[home-page]: Likewise.
* gnu/packages/networking.scm (quagga)[home-page]: Likewise.
* gnu/packages/ratpoison.scm (ratpoison)[home-page]: Likewise.
* gnu/packages/skribilo.scm (skribilo)[home-page]: Likewise.
* gnu/packages/telephony.scm (exosip)[home-page]: Likewise.
* gnu/packages/texinfo.scm (texi2html)[home-page]: Likewise.
* gnu/packages/xdisorg.scm (xbindkeys)[home-page]: Likewise.
</span></span></td><td>Tobias Geerinckx-Rice</td></tr>