1 files changed, 74 insertions, 0 deletions
diff --git a/config/external/icu/defs.mozbuild b/config/external/icu/defs.mozbuild
new file mode 100644
index 0000000000..bcb9f3b301
--- /dev/null
+++ b/config/external/icu/defs.mozbuild
@@ -0,0 +1,74 @@
+# -*- 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
+
+# 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