1 files changed, 75 insertions, 0 deletions
diff --git a/config/external/icu/defs.mozbuild b/config/external/icu/defs.mozbuild
new file mode 100644
index 0000000000..d6d75358ef
--- /dev/null
+++ b/config/external/icu/defs.mozbuild
@@ -0,0 +1,75 @@
+# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
+# vim: set filetype=python:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+# Also see <http://www.icu-project.org/repos/icu/tags/latest/icu4c/readme.html#RecBuild> for the
+# recommended build options when compiling ICU.
+# Don't use icu namespace automatically in client code.
+DEFINES["U_USING_ICU_NAMESPACE"] = 0
+# Don't include obsolete header files.
+DEFINES["U_NO_DEFAULT_INCLUDE_UTF_HEADERS"] = 1
+DEFINES["U_HIDE_OBSOLETE_UTF_OLD_H"] = 1
+
+# Remove chunks of the library that we don't need (yet).
+DEFINES["UCONFIG_NO_LEGACY_CONVERSION"] = True
+DEFINES["UCONFIG_NO_TRANSLITERATION"] = True
+DEFINES["UCONFIG_NO_REGULAR_EXPRESSIONS"] = True
+DEFINES["UCONFIG_NO_BREAK_ITERATION"] = True
+
+# We don't need to pass data to and from legacy char* APIs.
+DEFINES["U_CHARSET_IS_UTF8"] = True
+
+# Add 'explicit' keyword to UnicodeString constructors.
+DEFINES["UNISTR_FROM_CHAR_EXPLICIT"] = "explicit"
+DEFINES["UNISTR_FROM_STRING_EXPLICIT"] = "explicit"
+
+# Disable dynamic loading of ICU data as a loadable library.
+DEFINES["U_ENABLE_DYLOAD"] = 0
+
+if not CONFIG["HAVE_LANGINFO_CODESET"]:
+    DEFINES["U_HAVE_NL_LANGINFO_CODESET"] = 0
+
+if CONFIG["MOZ_DEBUG"]:
+    DEFINES["U_DEBUG"] = 1
+
+# ICU requires RTTI
+if CONFIG["CC_TYPE"] in ("clang", "gcc"):
+    CXXFLAGS += ["-frtti"]
+elif CONFIG["OS_TARGET"] == "WINNT":
+    # Remove the -GR- flag so we don't get a bunch of warning spam.
+    COMPILE_FLAGS["OS_CXXFLAGS"] = [
+        f for f in COMPILE_FLAGS["OS_CXXFLAGS"] if f != "-GR-"
+    ] + ["-GR"]
+
+DisableStlWrapping()
+AllowCompilerWarnings()
+
+# We allow compiler warnings, but we can at least cut down on spammy
+# warnings that get triggered for every file.
+if CONFIG["CC_TYPE"] in ("clang", "clang-cl"):
+    CFLAGS += [
+        "-Wno-c++20-compat",
+        "-Wno-comma",
+        "-Wno-implicit-const-int-float-conversion",
+        "-Wno-macro-redefined",
+        "-Wno-microsoft-include",
+        "-Wno-tautological-unsigned-enum-zero-compare",
+        "-Wno-unreachable-code-loop-increment",
+        "-Wno-unreachable-code-return",
+    ]
+    CXXFLAGS += [
+        "-Wno-c++20-compat",
+        "-Wno-comma",
+        "-Wno-implicit-const-int-float-conversion",
+        "-Wno-macro-redefined",
+        "-Wno-microsoft-include",
+        "-Wno-tautological-unsigned-enum-zero-compare",
+        "-Wno-unreachable-code-loop-increment",
+        "-Wno-unreachable-code-return",
+    ]
+
+for k, v in DEFINES.items():
+    if k != "UCONFIG_NO_LEGACY_CONVERSION":
+        HOST_DEFINES[k] = v