This patch comes from Gentoo:
 portage/media-gfx/prusaslicer/files/prusaslicer-2.5.0_rc1-fix-tests.patch

--- a/tests/fff_print/test_data.cpp
+++ b/tests/fff_print/test_data.cpp
@@ -4,10 +4,9 @@
 #include "libslic3r/GCodeReader.hpp"
 #include "libslic3r/Config.hpp"
 #include "libslic3r/Print.hpp"
-#include "libslic3r/Format/OBJ.hpp"
-#include "libslic3r/Format/STL.hpp"

 #include <cstdlib>
+#include <fstream>
 #include <string>

 #include <boost/nowide/cstdio.hpp>
main'><a href='/'>index</a> : <a href='/guix/'>guix</a></td><td class='form'><form method='get'>
<input type='hidden' name='id' value='041a12c46b77094c3a89276cf55d9cf1f68fb9a3'/><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=041a12c46b77094c3a89276cf55d9cf1f68fb9a3'>refs</a><a class='active' href='/guix/log/THANKS'>log</a><a href='/guix/tree/THANKS?id=041a12c46b77094c3a89276cf55d9cf1f68fb9a3'>tree</a><a href='/guix/commit/THANKS?id=041a12c46b77094c3a89276cf55d9cf1f68fb9a3'>commit</a><a href='/guix/diff/THANKS?id=041a12c46b77094c3a89276cf55d9cf1f68fb9a3'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/THANKS'>
<input type='hidden' name='id' value='041a12c46b77094c3a89276cf55d9cf1f68fb9a3'/><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=041a12c46b77094c3a89276cf55d9cf1f68fb9a3'>root</a>/<a href='/guix/log/THANKS?id=041a12c46b77094c3a89276cf55d9cf1f68fb9a3'>THANKS</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/THANKS?id=041a12c46b77094c3a89276cf55d9cf1f68fb9a3&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
root</a>/<a href='/guix/log/gnu?id=6a2546f92d07df04e5d700924edd027ed1e2ef11'>gnu</a>/<a href='/guix/log/gnu/packages?id=6a2546f92d07df04e5d700924edd027ed1e2ef11'>packages</a>/<a href='/guix/log/gnu/packages/patches?id=6a2546f92d07df04e5d700924edd027ed1e2ef11'>patches</a>/<a href='/guix/log/gnu/packages/patches/icecat-avoid-bundled-libraries.patch?id=6a2546f92d07df04e5d700924edd027ed1e2ef11'>icecat-avoid-bundled-libraries.patch</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/patches/icecat-avoid-bundled-libraries.patch?id=6a2546f92d07df04e5d700924edd027ed1e2ef11&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>