Pretend that stat's mtime is broken, so that the fontconfig cache does not
depend upon modification time to determine if a cache is stale.

diff --git a/src/fcstat.c b/src/fcstat.c
index 5a2bd7c..d603a96 100644
--- a/src/fcstat.c
+++ b/src/fcstat.c
@@ -431,6 +431,7 @@ FcIsFsMmapSafe (int fd)
 FcBool
 FcIsFsMtimeBroken (const FcChar8 *dir)
 {
+    return FcTrue;
     int fd = FcOpen ((const char *) dir, O_RDONLY);
 
     if (fd != -1)
n='2'><a href='/'><img src='https://git.koszko.org/cgit-static/cgit.png' alt='cgit logo'/></a></td>
<td class='main'><a href='/'>index</a> : <a href='/guix/'>guix</a></td><td class='form'><form method='get'>
<input type='hidden' name='id' value='9fb8a480d5aec9186908e92ad18b31455f4aab6b'/><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=9fb8a480d5aec9186908e92ad18b31455f4aab6b'>refs</a><a class='active' href='/guix/log/gnu/packages/patches/ocaml-multiple-definitions.patch'>log</a><a href='/guix/tree/gnu/packages/patches/ocaml-multiple-definitions.patch?id=9fb8a480d5aec9186908e92ad18b31455f4aab6b'>tree</a><a href='/guix/commit/gnu/packages/patches/ocaml-multiple-definitions.patch?id=9fb8a480d5aec9186908e92ad18b31455f4aab6b'>commit</a><a href='/guix/diff/gnu/packages/patches/ocaml-multiple-definitions.patch?id=9fb8a480d5aec9186908e92ad18b31455f4aab6b'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/gnu/packages/patches/ocaml-multiple-definitions.patch'>
<input type='hidden' name='id' value='9fb8a480d5aec9186908e92ad18b31455f4aab6b'/><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=9fb8a480d5aec9186908e92ad18b31455f4aab6b'>root</a>/<a href='/guix/log/gnu?id=9fb8a480d5aec9186908e92ad18b31455f4aab6b'>gnu</a>/<a href='/guix/log/gnu/packages?id=9fb8a480d5aec9186908e92ad18b31455f4aab6b'>packages</a>/<a href='/guix/log/gnu/packages/patches?id=9fb8a480d5aec9186908e92ad18b31455f4aab6b'>patches</a>/<a href='/guix/log/gnu/packages/patches/ocaml-multiple-definitions.patch?id=9fb8a480d5aec9186908e92ad18b31455f4aab6b'>ocaml-multiple-definitions.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/ocaml-multiple-definitions.patch?id=9fb8a480d5aec9186908e92ad18b31455f4aab6b&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2021-08-05 15:46:46 +0200'>2021-08-05</span></td><td><a href='/guix/commit/gnu/packages/patches/ocaml-multiple-definitions.patch?id=1d580f47a9f3b9a0ff9cbb490ff9db7388d74952'>gnu: ocaml@4.07: Fix link failure.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>