The firmware is cross-compiled, but the build system ends up using
'objcopy' instead of 'xtensa-elf-objcopy' by default.  Force it to
use the right one.

--- source/target_firmware/configure	2014-10-28 20:57:26.834436561 +0100
+++ source/target_firmware/configure	2014-10-28 20:57:29.666436530 +0100
@@ -11,6 +11,7 @@ mkdir -p build
 cat > "$TOOLCHAIN_FILE" <<EOF
 INCLUDE(CMakeForceCompiler)
 
+SET(CMAKE_OBJCOPY xtensa-elf-objcopy)
 SET(CMAKE_SYSTEM_PROCESSOR xtensa)
 SET(CMAKE_FIND_ROOT_PATH ${TOOLCHAIN}/$TARGET)
 SET(CMAKE_STRIP :)
uix/'>guix</a></td><td class='form'><form method='get'>
<input type='hidden' name='id' value='4ba9f3e0f1484524f91ca1f7ec3a4ce7cb8873ff'/><select name='h' onchange='this.form.submit();'>
<option value='koszko' selected='selected'>koszko</option>
<option value='koszko-scripts'>koszko-scripts</option>
</select> <input type='submit' value='switch'/></form></td></tr>
<tr><td class='sub'>Wojtek's customized Guix</td><td class='sub right'></td></tr></table>
<table class='tabs'><tr><td>
<a href='/guix/about/'>about</a><a href='/guix/'>summary</a><a href='/guix/refs/?id=4ba9f3e0f1484524f91ca1f7ec3a4ce7cb8873ff'>refs</a><a class='active' href='/guix/log/gnu/system/privilege.scm'>log</a><a href='/guix/tree/gnu/system/privilege.scm?id=4ba9f3e0f1484524f91ca1f7ec3a4ce7cb8873ff'>tree</a><a href='/guix/commit/gnu/system/privilege.scm?id=4ba9f3e0f1484524f91ca1f7ec3a4ce7cb8873ff'>commit</a><a href='/guix/diff/gnu/system/privilege.scm?id=4ba9f3e0f1484524f91ca1f7ec3a4ce7cb8873ff'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/gnu/system/privilege.scm'>
<input type='hidden' name='id' value='4ba9f3e0f1484524f91ca1f7ec3a4ce7cb8873ff'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
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</select>
<input class='txt' type='search' size='10' name='q' value=''/>
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</form>
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<div class='path'>path: <a href='/guix/log/?id=4ba9f3e0f1484524f91ca1f7ec3a4ce7cb8873ff'>root</a>/<a href='/guix/log/gnu?id=4ba9f3e0f1484524f91ca1f7ec3a4ce7cb8873ff'>gnu</a>/<a href='/guix/log/gnu/system?id=4ba9f3e0f1484524f91ca1f7ec3a4ce7cb8873ff'>system</a>/<a href='/guix/log/gnu/system/privilege.scm?id=4ba9f3e0f1484524f91ca1f7ec3a4ce7cb8873ff'>privilege.scm</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'><tr><td><span title='2021-06-07 11:31:17 +0100'>2021-06-07</span></td><td><a href='/guix/commit/etc/substitutes?id=26499816a973b3aab9aaf8e13b909d0bde4e2dd5'>etc: Add "bordeaux.guix.gnu.org.pub" public key file.</a><span class='msg-avail'>...<span class='msg-tooltip'>* etc/substitutes/bordeaux.guix.gnu.org.pub: New file.
* Makefile.am (dist_pkgdata_DATA): Add it.
* guix/self.scm (miscellaneous-files): Add
"share/guix/bordeaux.guix.gnu.org.pub".
</span></span></td><td>Christopher Baines</td></tr>
<tr><td><span title='2020-07-10 00:11:00 +0200'>2020-07-10</span></td><td><a href='/guix/commit/etc/substitutes?id=d283bb960f927dd5f7bb8b96bc697221e4e8ad39'>maint: Remove traces of "berlin.guixsd.org".</a><span class='msg-avail'>...<span class='msg-tooltip'>The guixsd.org domain is no longer advertised since before in 1.0.0
release in May 2019.

* etc/substitutes/berlin.guixsd.org.pub: Rename to...
* etc/substitutes/berlin.guix.gnu.org.pub: ... this.
* etc/substitutes/ci.guix.gnu.org.pub,
etc/substitutes/ci.guix.info.pub: Adjust accordingly.
* gnu/services/base.scm (%default-authorized-guix-keys): Likewise.
* guix/build/download-nar.scm (urls-for-item): Likewise.
* guix/self.scm (miscellaneous-files): Likewise.
* Makefile.am (dist_pkgdata_DATA): Likewise.
</span></span></td><td>Ludovic Courtès</td></tr>
w file.
* gnu/local.mk (GNU_SYSTEM_MODULES): Add it.
</span></span></td><td>Tobias Geerinckx-Rice</td></tr>