From ffee263b35f21dc303d613cb7112c0f9e82f8254 Mon Sep 17 00:00:00 2001
From: Matt Jolly <kangie@gentoo.org>
Date: Wed, 10 Sep 2025 09:22:19 +1000
Subject: [PATCH] build with actually released fontconfig

https://chromium.googlesource.com/chromium/src/+/9af749d9dfb0f4a5aaa0463bcad126973e3d5363

rolls Chromium's fontconfig to include

https://chromium.googlesource.com/external/fontconfig.git/+/59da606145558a0041eb90d9c80a26a6f0c1d348%5E%21/

which _is_ available upstream, but is not in _any_ fontconfig release;
this change updates the fontconfig cache magic number from `9` to `10`.

As a result, any Chromium build using an unbundled fontconfig (like, say,
every Linux distro...) will fail if building test targets, despite fontconfig
being one of the few libraries supported by
`build/linux/unbundle/replace_gn_files.py`.

Further changes to work around regressions in fontations also configure bundled
fontconfig to suffix `-reindex1` to the cache path which, as per the above, also
breaks builds using system fontconfig.

https://github.com/chromium/chromium/commit/bbf7b467a342847e94eadf02777ab70073807fa7

This patch reverts enough of these changes to allow Chromium to build with
unbundled (and actually released) fontconfig versions again.

See-also: https://issues.chromium.org/issues/442698344
Signed-off-by: Matt Jolly <kangie@gentoo.org>
--- a/third_party/test_fonts/fontconfig/BUILD.gn
+++ b/third_party/test_fonts/fontconfig/BUILD.gn
@@ -49,7 +49,7 @@ if (is_linux || is_chromeos) {
       args = []
       inputs = [ "$root_out_dir/etc/fonts/fonts.conf" ]
       outputs = [
-        "$root_out_dir/fontconfig_caches/fb5c91b2895aa445d23aebf7f9e2189c-le64.cache-reindex1-10",
+        "$root_out_dir/fontconfig_caches/fb5c91b2895aa445d23aebf7f9e2189c-le64.cache-9",
         "$root_out_dir/fontconfig_caches/CACHEDIR.TAG",
       ]
     }
--- a/third_party/test_fonts/fontconfig/generate_fontconfig_caches.cc
+++ b/third_party/test_fonts/fontconfig/generate_fontconfig_caches.cc
@@ -56,7 +56,7 @@ int main() {
   FcFini();
 
   // Check existence of intended fontconfig cache file.
-  auto cache = fontconfig_caches + "/" + kCacheKey + "-le64.cache-reindex1-10";
+  auto cache = fontconfig_caches + "/" + kCacheKey + "-le64.cache-9";
   bool cache_exists = access(cache.c_str(), F_OK) == 0;
   return !cache_exists;
 }
-- 
2.50.1