Fix FreeType component build on Fedora

third_party/freetype/BUILD.gn

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import("//build/config/chromecast_build.gni")
 
 config("freetype_config") {
   include_dirs = [
     "include",
     "src/include",
@@ skipping 38 matching lines @@
     "src/src/gzip/ftgzip.c",
     "src/src/pshinter/pshinter.c",
     "src/src/psnames/psnames.c",
     "src/src/raster/raster.c",
     "src/src/sfnt/sfnt.c",
     "src/src/smooth/smooth.c",
     "src/src/truetype/truetype.c",
   ]
 
   if (is_linux || is_chromecast) {
-    # Needed for content_shell on Linux and Chromecast, since fontconfig requires FT_Get_BDF_Property.
+    # Needed for content_shell on Linux and Chromecast, since fontconfig
+    # requires FT_Get_BDF_Property.
     sources += [ "src/src/base/ftbdf.c" ]
   }
 
+  if (is_linux || is_chromecast) {
+    # Needed on Fedora whose libfreetype builds ftsynth.c containing
+    # FT_GlyphSlot_Embolden, which we need to replace in content_shell if
+    # we are linking against our own FreeType.
+    sources += [ "src/src/base/ftsynth.c" ]
+  }
+
   defines = [
     "FT2_BUILD_LIBRARY",
     "DARWIN_NO_CARBON",
 
     # Long directory name to avoid accidentally using wrong headers.
     "FT_CONFIG_MODULES_H=<freetype-custom-config/ftmodule.h>",
     "FT_CONFIG_OPTIONS_H=<freetype-custom-config/ftoption.h>",
   ]
 
   public_configs = [ ":freetype_config" ]
   configs -= [ "//build/config/compiler:chromium_code" ]
   configs += [
     "//build/config/compiler:no_chromium_code",
     ":freetype-warnings",
     ":freetype-visibility",
   ]
 
   deps = [
     "//third_party/libpng",
     "//third_party/zlib",
   ]
 }