Minimally patch libtheora's ancient config.guess to support mips64.

--- libtheora/config.guess.orig	2009-02-23 22:50:50.000000000 -0500
+++ libtheora/config.guess	2013-10-31 23:49:48.155999944 -0400
@@ -798,25 +798,24 @@
     m68*:Linux:*:*)
 	echo ${UNAME_MACHINE}-unknown-linux-gnu
 	exit 0 ;;
-    mips:Linux:*:*)
+    mips:Linux:*:* | mips64:Linux:*:*)
 	eval $set_cc_for_build
 	sed 's/^	//' << EOF >$dummy.c
 	#undef CPU
-	#undef mips
-	#undef mipsel
+	#undef ${UNAME_MACHINE}
+	#undef ${UNAME_MACHINE}el
 	#if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL)
-	CPU=mipsel
+	CPU=${UNAME_MACHINE}el
 	#else
 	#if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB)
-	CPU=mips
+	CPU=${UNAME_MACHINE}
 	#else
 	CPU=
 	#endif
 	#endif
 EOF
-	eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep ^CPU=`
-	rm -f $dummy.c && rmdir $tmpdir
-	test x"${CPU}" != x && echo "${CPU}-pc-linux-gnu" && exit 0
+	eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep '^CPU'`
+	test x"${CPU}" != x && { echo "${CPU}-unknown-linux-gnu"; exit 0; }
 	;;
     ppc:Linux:*:*)
 	echo powerpc-unknown-linux-gnu
7d4bbf'>refs</a><a class='active' href='/guix/log/tests/store-database.scm'>log</a><a href='/guix/tree/tests/store-database.scm?id=c7210b9613372dffa7b1926832b1ec1ff97d4bbf'>tree</a><a href='/guix/commit/tests/store-database.scm?id=c7210b9613372dffa7b1926832b1ec1ff97d4bbf'>commit</a><a href='/guix/diff/tests/store-database.scm?id=c7210b9613372dffa7b1926832b1ec1ff97d4bbf'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/tests/store-database.scm'>
<input type='hidden' name='id' value='c7210b9613372dffa7b1926832b1ec1ff97d4bbf'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/guix/log/?id=c7210b9613372dffa7b1926832b1ec1ff97d4bbf'>root</a>/<a href='/guix/log/tests?id=c7210b9613372dffa7b1926832b1ec1ff97d4bbf'>tests</a>/<a href='/guix/log/tests/store-database.scm?id=c7210b9613372dffa7b1926832b1ec1ff97d4bbf'>store-database.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/tests/store-database.scm?id=c7210b9613372dffa7b1926832b1ec1ff97d4bbf&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2018-07-20 15:01:33 +0200'>2018-07-20</span></td><td><a href='/guix/commit/tests/store-database.scm?id=e4752118691e41ae8307649d1abfd4739b3e4bfa'>database: Reset timestamps to one second after the Epoch.</a><span class='msg-avail'>...<span class='msg-tooltip'>Previously, store items registered in the database by this code (for
instance, store items retrieved by 'guix offload' and passed to
'restore-file-set') would have an mtime of 0 instead of 1.

This would cause problems for things like .go files: Guile would
consider them to be older than the corresponding .scm file, and
consequently it would ignore them and possibly use another (incorrect)
.go file.

Reported by Ricardo Wurmus.

* guix/store/database.scm (reset-timestamps): Pass 1, not 0, to
'utime'.
* tests/store-database.scm ("register-path"): Check the mtime of FILE
and REF.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2018-06-14 11:17:00 +0200'>2018-06-14</span></td><td><a href='/guix/commit/tests/store-database.scm?id=df2f6400b1fbc282ef4d6dd7124ea1c17adc23c2'>store: Remove 'register-path'.</a><span class='msg-avail'>...<span class='msg-tooltip'>* guix/store.scm (register-path): Remove.
* guix/nar.scm: Use (guix store database).
* guix/scripts/system.scm: Likewise.
* tests/store-database.scm: Remove #:hide (register-path).
* tests/store.scm ("register-path"): Remove.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2018-06-14 11:17:00 +0200'>2018-06-14</span></td><td><a href='/guix/commit/tests/store-database.scm?id=ef1297e8c74a0358d2538a5dd43d50cde7bf14a3'>database: 'sqlite-register' takes a database, not a file name.</a><span class='msg-avail'>...<span class='msg-tooltip'>* guix/store/database.scm (sqlite-register): Remove #:db-file and add
'db' parameter.  Remove #:schema and 'parameterize'.
(register-path): Wrap 'sqlite-register' call in 'with-database' and in
'parameterize'.
* tests/store-database.scm ("new database")
("register-path with unregistered references"): Adjust accordingly.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2018-06-14 11:16:58 +0200'>2018-06-14</span></td><td><a href='/guix/commit/tests/store-database.scm?id=f8f9f7cabca3f0ea1f8b8cb4fecfc45889bdfb94'>database: Fail registration when encountering unregistered references.</a><span class='msg-avail'>...<span class='msg-tooltip'>* guix/store/database.scm (add-reference-sql): Remove nested SELECT.
(add-references): Expect REFERENCES to be a list of ids.
(sqlite-register): Call 'path-id' for each of REFERENCES and pass it to
'add-references'.
* tests/store-database.scm ("register-path with unregistered references"):
New test.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2018-06-14 11:16:58 +0200'>2018-06-14</span></td><td><a href='/guix/commit/tests/store-database.scm?id=3931c76154d4f418d5ea9acc5e47bf911d371c24'>database: 'with-database' can now initialize new databases.</a><span class='msg-avail'>...<span class='msg-tooltip'>* nix/libstore/schema.sql: Rename to...
* guix/store/schema.sql: ... this.
* Makefile.am (nobase_dist_guilemodule_DATA): Add it.
* nix/local.mk (%D%/libstore/schema.sql.hh): Adjust accordingly.
* guix/store/database.scm (sql-schema): New variable.
(sqlite-exec, initialize-database, call-with-database): New procedures.
(with-database): Rewrite in terms of 'call-with-database'.
* tests/store-database.scm ("new database"): New test.
* guix/self.scm (compiled-guix)[*core-modules*]: Add 'schema.sql' to
 #:extra-files.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2018-06-01 15:35:32 +0200'>2018-06-01</span></td><td><a href='/guix/commit/tests/store-database.scm?id=7f9d184d9b688d13ce76eefabaddcfa76bdde2b5'>Add (gnu store database).</a><span class='msg-avail'>...<span class='msg-tooltip'>* guix/config.scm.in (%store-database-directory): New variable.
* guix/store/database.scm: New file.
* tests/store-database.scm: New file.
* Makefile.am (STORE_MODULES): New variable.
(MODULES, MODULES_NOT_COMPILED): Adjust accordingly.
(SCM_TESTS) [HAVE_GUILE_SQLITE3]: Add tests/store-database.scm.

Co-authored-by: Ludovic Courtès &lt;ludo@gnu.org&gt;
</span></span></td><td>Caleb Ristvedt</td></tr>