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;
952a8fc'>commit</a><a href='/guix/diff/gnu/packages/patches/libtirpc-CVE-2021-46828.patch?id=ca7e310f7ac32354b2e693e9a0f783320952a8fc'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/gnu/packages/patches/libtirpc-CVE-2021-46828.patch'>
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<tr><td><span title='2022-08-07 17:35:58 +0300'>2022-08-07</span></td><td><a href='/guix/commit/gnu/packages/patches/libtirpc-CVE-2021-46828.patch?id=92769ab2828b53ce41200e8beb8789a12863ee53'>gnu: libtirpc: Fix CVE-2021-46828.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/onc-rpc.scm (libtirpc)[replacement]: New field.
(libtirpc/fixed): New variable.
(libtirpc-hurd)[source]: Add patch.
* gnu/packages/patches/libtirpc-CVE-2021-46828.patch: New file.
* gnu/local.mk (dist_patch_DATA): Register it.
</span></span></td><td>Efraim Flashner</td></tr>