--- build/linux/unbundle/icu.gn.orig	2024-11-16 12:20:41 UTC
+++ build/linux/unbundle/icu.gn
@@ -17,6 +17,15 @@ config("icu_config") {
     "USING_SYSTEM_ICU=1",
     "ICU_UTIL_DATA_IMPL=ICU_UTIL_DATA_STATIC",
 
+    # As of icu 73 C++ nullptr, char16_t, override, final and noexcept are used
+    # instead of defines. These definitions can be removed when the bundled icu
+    # gets updated to 73. For more details, see:
+    # https://unicode-org.atlassian.net/browse/ICU-21833 and
+    # https://github.com/unicode-org/icu/commit/28643799377ecf654564f6f31854b02788cebe33
+    "U_FINAL=final",
+    "U_NOEXCEPT=noexcept",
+    "U_OVERRIDE=override",
+
     # U_EXPORT (defined in unicode/platform.h) is used to set public visibility
     # on classes through the U_COMMON_API and U_I18N_API macros (among others).
     # When linking against the system ICU library, we want its symbols to have
@@ -35,6 +44,18 @@ config("icu_config") {
     # please see: https://crbug.com/822820
     "U_IMPORT=U_EXPORT",
   ]
+
+  _icu_version = exec_script(pkg_config_script,
+                              common_pkg_config_args + pkg_config_args + [
+                                    "icu-i18n",
+                                    "--version-as-components",
+                                  ],
+                              "value")
+
+  # Unbreak with icu 76 where private symbols are picked up
+  if (_icu_version[0] >= 76) {
+    defines += [ "U_HIDE_DRAFT_API" ]
+  }
 }
 
 pkg_config("system_icui18n") {
@@ -46,6 +67,14 @@ pkg_config("system_icuuc") {
 }
 
 source_set("icui18n") {
+  deps = [ ":icui18n_shim" ]
+  public_configs = [
+    ":icu_config",
+    ":system_icui18n",
+  ]
+}
+
+source_set("icui18n_hidden_visibility") {
   deps = [ ":icui18n_shim" ]
   public_configs = [
     ":icu_config",