[build] Remove last vestiges of ICU for anything other than Foundation

Author: finagolfin

CMakeLists.txt

@@ -304,23 +304,6 @@ set(SWIFT_ANDROID_NDK_CLANG_VERSION "12.0.8" CACHE STRING
 set(SWIFT_ANDROID_DEPLOY_DEVICE_PATH "" CACHE STRING
   "Path on an Android device where build products will be pushed. These are used when running the test suite against the device")
 
-#
-# User-configurable ICU specific options for Android, FreeBSD, Linux, Haiku, and WASI.
-#
-
-foreach(sdk ANDROID;FREEBSD;LINUX;WINDOWS;HAIKU;WASI)
-  foreach(arch aarch64;armv6;armv7;i686;powerpc64;powerpc64le;s390x;wasm32;x86_64)
-    set(SWIFT_${sdk}_${arch}_ICU_UC "" CACHE STRING
-        "Path to a directory containing the icuuc library for ${sdk}")
-    set(SWIFT_${sdk}_${arch}_ICU_UC_INCLUDE "" CACHE STRING
-        "Path to a directory containing headers for icuuc for ${sdk}")
-    set(SWIFT_${sdk}_${arch}_ICU_I18N "" CACHE STRING
-        "Path to a directory containing the icui18n library for ${sdk}")
-    set(SWIFT_${sdk}_${arch}_ICU_I18N_INCLUDE "" CACHE STRING
-        "Path to a directory containing headers icui18n for ${sdk}")
-  endforeach()
-endforeach()
-
 #
 # User-configurable Darwin-specific options.
 #

docs/WindowsBuild.md

@@ -92,7 +92,7 @@ structure should resemble:
       ┕ usr/...
 ```
 
-Note that only ICU is required for building the toolchain, and SQLite is only
+Note that ICU is only required for building Foundation, and SQLite is only
 needed for building llbuild and onwards.  The ICU project provides binaries,
 alternatively, see the ICU project for details on building ICU from source.
 
@@ -134,10 +134,6 @@ cmake -B "S:\b\1" ^
   -D LLVM_EXTERNAL_CMARK_SOURCE_DIR=S:\cmark ^
   -D LLVM_EXTERNAL_SWIFT_SOURCE_DIR=S:\swift ^
   -D SWIFT_PATH_TO_LIBDISPATCH_SOURCE=S:\swift-corelibs-libdispatch ^
-  -D SWIFT_WINDOWS_x86_64_ICU_I18N_INCLUDE=S:\Library\icu-67\usr\include ^
-  -D SWIFT_WINDOWS_x86_64_ICU_I18N=S:\Library\icu-67\usr\lib\icuin67.lib ^
-  -D SWIFT_WINDOWS_x86_64_ICU_UC_INCLUDE=S:\Library\icu-67\usr\include ^
-  -D SWIFT_WINDOWS_x86_64_ICU_UC=S:\Library\icu-67\usr\lib\icuuc67.lib ^
   -G Ninja ^
   -S S:\llvm-project\llvm
 

docs/WindowsCrossCompile.md

@@ -30,19 +30,14 @@ the `build-script` invocation to achieve this. You will need to expand out the
 path where `llvm-ar` and `llvm-ranlib` are built. These are needed to correctly
 build the static libraries. Note that cross-compiling will require the use of
 `lld`. Ensure that `lld-link.exe` is available to clang via your path.
-Additionally, the ICU headers and libraries need to be provided for the build.
 
 #### macOS
 
 ```bash
 --extra-cmake-options=-DSWIFT_BUILD_RUNTIME_WITH_HOST_COMPILER=FALSE,\
 -DCMAKE_AR=<path to llvm-ar>,\
 -DCMAKE_RANLIB=<path to llvm-ranlib>,\
--DSWIFT_SDKS='OSX;WINDOWS',\
--DSWIFT_WINDOWS_x86_64_ICU_I18N_INCLUDE=<path to ICU i18n includes>,\
--DSWIFT_WINDOWS_x86_64_ICU_UC_INCLUDE=<path to ICU UC includes>,\
--DSWIFT_WINDOWS_x86_64_ICU_I18N=<path to ICU i18n lib>,\
--DSWIFT_WINDOWS_x86_64_ICU_UC=<path to ICU UC lib>
+-DSWIFT_SDKS='OSX;WINDOWS'
 ```
 
 #### Linux

stdlib/cmake/modules/AddSwiftStdlib.cmake

@@ -1144,17 +1144,9 @@ function(add_swift_target_library_single target name)
     target_link_libraries("${target}" INTERFACE ${SWIFTLIB_SINGLE_LINK_LIBRARIES})
   endif()
 
-  # Don't add the icucore target.
-  set(SWIFTLIB_SINGLE_LINK_LIBRARIES_WITHOUT_ICU)
-  foreach(item ${SWIFTLIB_SINGLE_LINK_LIBRARIES})
-    if(NOT "${item}" STREQUAL "icucore")
-      list(APPEND SWIFTLIB_SINGLE_LINK_LIBRARIES_WITHOUT_ICU "${item}")
-    endif()
-  endforeach()
-
   if(target_static)
     _list_add_string_suffix(
-        "${SWIFTLIB_SINGLE_LINK_LIBRARIES_WITHOUT_ICU}"
+        "${SWIFTLIB_SINGLE_LINK_LIBRARIES}"
         "-static"
         target_static_depends)
     # FIXME: should this be target_link_libraries?

test/stdlib/Character.swift

@@ -84,16 +84,12 @@ var testCharacters = [
   "\u{0061}\u{0300}\u{0300}\u{0300}\u{0300}", // UTF-8: 9 bytes
 ]
 
-// Only run it on ObjC platforms. Supported Linux versions do not have a
-// recent enough ICU
-#if _runtime(_ObjC)
 testCharacters += [
   "\u{0061}\u{0300}\u{0300}\u{0300}\u{0300}\u{0300}", // UTF-8: 11 bytes
   "\u{0061}\u{0300}\u{0300}\u{0300}\u{0300}\u{0300}\u{0300}", // UTF-8: 13 bytes
   "\u{0061}\u{0300}\u{0300}\u{0300}\u{0300}\u{0300}\u{0300}\u{0300}", // UTF-8: 15 bytes
   "\u{0061}\u{0300}\u{0300}\u{0300}\u{0300}\u{0300}\u{0300}\u{0300}\u{0300}", // UTF-8: 17 bytes
 ]
-#endif
 
 testCharacters += [
   // U+00A9 COPYRIGHT SIGN
@@ -105,8 +101,6 @@ testCharacters += [
   "\u{00a9}\u{0300}\u{0300}\u{0300}\u{0300}", // UTF-8: 10 bytes
 ]
 
-// Only run it on recent enough versions of ICU
-#if _runtime(_ObjC)
 if #available(iOS 11.0, macOS 10.13, tvOS 11.0, watchOS 4.0, *) {
   testCharacters += [
     "\u{00a9}\u{0300}\u{0300}\u{0300}\u{0300}\u{0300}", // UTF-8: 12 bytes
@@ -117,7 +111,6 @@ if #available(iOS 11.0, macOS 10.13, tvOS 11.0, watchOS 4.0, *) {
     "👩‍👩‍👦‍👦", // UTF-8: 25 bytes
   ]
 }
-#endif
 
 func randomGraphemeCluster(_ minSize: Int, _ maxSize: Int) -> String {
   let n = Int.random(in: (minSize + 1) ..< maxSize)
@@ -224,9 +217,6 @@ CharacterTests.test("CR-LF") {
 }
 
 CharacterTests.test("Unicode 9 grapheme breaking") {
-  // Only run it on ObjC platforms. Supported Linux versions do not have a
-  // recent enough ICU for Unicode 9 support.
-#if _runtime(_ObjC)
   // Check for Unicode 9 or later
   guard #available(iOS 10.0, macOS 10.12, *) else { return }
 
@@ -241,7 +231,6 @@ CharacterTests.test("Unicode 9 grapheme breaking") {
   let skinTone = "👋👋🏻👋🏼👋🏽👋🏾👋🏿"
   expectEqual(6, skinTone.count)
   expectEqual(skinTone.reversed().count, skinTone.count)
-#endif
 }
 
 /// Test that a given `String` can be transformed into a `Character` and back

test/stdlib/CharacterProperties.swift

@@ -143,12 +143,7 @@ CharacterPropertiesTests.test("Casing") {
 
   expectEqual("SS", Character("ß").uppercased())
 
-// Some versions of ICU on Linux (62.1) have a bug producing the wrong value
-// when lowercasing "ẞ". Darwin platforms never shipped this version, so
-// conditionally test based on platform.
-#if canImport(Darwin)
   expectEqual("ß", Character("ẞ").lowercased())
-#endif
 
   expectEqual("и", Character("И").lowercased())
   expectEqual("И", Character("и").uppercased())

utils/build-presets.ini

@@ -921,7 +921,6 @@ test-optimized
 lit-args=-v --time-tests
 
 build-ninja
-libicu
 libcxx
 
 android
@@ -942,7 +941,6 @@ host-test
 install-prefix=/usr
 install-llvm
 install-swift
-install-libicu
 install-libcxx
 
 skip-test-linux

utils/build-script-impl

@@ -2059,19 +2059,6 @@ for host in "${ALL_HOSTS[@]}"; do
                     -DSWIFT_PATH_TO_LIBDISPATCH_STATIC_BUILD:PATH="$(build_directory ${host} libdispatch_static)"
                 )
 
-                if [[ ! "${SKIP_BUILD_LIBICU}" ]] ; then
-                    LIBICU_BUILD_DIR="$(build_directory ${host} libicu)"
-                    ICU_TMPINSTALL=${LIBICU_BUILD_DIR}/tmp_install
-                    cmake_options=(
-                        "${cmake_options[@]}"
-                        -DSWIFT_PATH_TO_LIBICU_SOURCE:PATH="${LIBICU_SOURCE_DIR}"
-                        -DSWIFT_PATH_TO_LIBICU_BUILD:PATH="${LIBICU_BUILD_DIR}"
-                        -DSWIFT_${SWIFT_HOST_VARIANT_SDK}_${SWIFT_HOST_VARIANT_ARCH}_ICU_UC_INCLUDE:STRING="${ICU_TMPINSTALL}/include"
-                        -DSWIFT_${SWIFT_HOST_VARIANT_SDK}_${SWIFT_HOST_VARIANT_ARCH}_ICU_I18N_INCLUDE:STRING="${ICU_TMPINSTALL}/include"
-                        -DSWIFT_${SWIFT_HOST_VARIANT_SDK}_${SWIFT_HOST_VARIANT_ARCH}_ICU_STATICLIB:BOOL=TRUE
-                    )
-                fi
-
                 if [[ "${SWIFT_SDKS}" ]] ; then
                     cmake_options=(
                         "${cmake_options[@]}"

utils/build-windows-toolchain.bat

@@ -201,10 +201,6 @@ cmake ^
   -D PYTHON_HOME=%PYTHON_HOME% ^
   -D PYTHON_EXECUTABLE=%PYTHON_HOME%\python.exe ^
   -D SWIFT_PATH_TO_LIBDISPATCH_SOURCE="%SourceRoot%\swift-corelibs-libdispatch" ^
-  -D SWIFT_WINDOWS_x86_64_ICU_UC_INCLUDE="%BuildRoot%\Library\icu-67.1\include\unicode" ^
-  -D SWIFT_WINDOWS_x86_64_ICU_UC="%BuildRoot%\Library\icu-67.1\lib64\icuuc.lib" ^
-  -D SWIFT_WINDOWS_x86_64_ICU_I18N_INCLUDE="%BuildRoot%\Library\icu-67.1\include" ^
-  -D SWIFT_WINDOWS_x86_64_ICU_I18N="%BuildRoot%\Library\icu-67.1\lib64\icuin.lib" ^
 
   -G Ninja ^
   -S llvm-project\llvm || (exit /b)
@@ -231,10 +227,6 @@ cmake ^
   -D LLVM_DIR=%BuildRoot%\1\lib\cmake\llvm ^
   -D SWIFT_NATIVE_SWIFT_TOOLS_PATH=%BuildRoot%\1\bin ^
   -D SWIFT_PATH_TO_LIBDISPATCH_SOURCE=%SourceRoot%\swift-corelibs-libdispatch ^
-  -D SWIFT_WINDOWS_x86_64_ICU_UC_INCLUDE="%BuildRoot%\Library\icu-67.1\include\unicode" ^
-  -D SWIFT_WINDOWS_x86_64_ICU_UC="%BuildRoot%\Library\icu-67.1\lib64\icuuc.lib" ^
-  -D SWIFT_WINDOWS_x86_64_ICU_I18N_INCLUDE="%BuildRoot%\Library\icu-67.1\include" ^
-  -D SWIFT_WINDOWS_x86_64_ICU_I18N="%BuildRoot%\Library\icu-67.1\lib64\icuin.lib" ^
 
   -D SWIFT_ENABLE_EXPERIMENTAL_CONCURRENCY=YES ^
   -D SWIFT_ENABLE_EXPERIMENTAL_DISTRIBUTED=YES ^

utils/build-windows.bat

@@ -257,10 +257,6 @@ cmake^
     -DLLVM_DIR:PATH=%build_root%\llvm\lib\cmake\llvm^
     -DLLVM_TEMPORARILY_ALLOW_OLD_TOOLCHAIN=ON^
     -DSWIFT_INCLUDE_DOCS:BOOL=NO^
-    -DSWIFT_WINDOWS_x86_64_ICU_UC_INCLUDE:PATH=%source_root%\icu-%icu_version%\include\unicode^
-    -DSWIFT_WINDOWS_x86_64_ICU_UC:PATH=%source_root%\icu-%icu_version%\lib64\icuuc.lib^
-    -DSWIFT_WINDOWS_x86_64_ICU_I18N_INCLUDE:PATH=%source_root%\icu-%icu_version%\include^
-    -DSWIFT_WINDOWS_x86_64_ICU_I18N:PATH=%source_root%\icu-%icu_version%\lib64\icuin.lib^
     -DSWIFT_BUILD_DYNAMIC_STDLIB:BOOL=YES^
     -DSWIFT_BUILD_DYNAMIC_SDK_OVERLAY:BOOL=YES^
     -DSWIFT_BUILD_STATIC_STDLIB:BOOL=NO^

utils/swift_build_support/swift_build_support/products/libdispatch.py

@@ -12,7 +12,6 @@
 
 from . import cmark
 from . import libcxx
-from . import libicu
 from . import llvm
 from . import product
 from . import swift
@@ -52,5 +51,4 @@ def get_dependencies(cls):
         return [cmark.CMark,
                 llvm.LLVM,
                 libcxx.LibCXX,
-                libicu.LibICU,
                 swift.Swift]

utils/swift_build_support/swift_build_support/products/swift.py

@@ -13,7 +13,6 @@
 from . import cmark
 from . import earlyswiftdriver
 from . import libcxx
-from . import libicu
 from . import llvm
 from . import product
 from ..cmake import CMakeOptions
@@ -176,5 +175,4 @@ def get_dependencies(cls):
         return [cmark.CMark,
                 earlyswiftdriver.EarlySwiftDriver,
                 llvm.LLVM,
-                libcxx.LibCXX,
-                libicu.LibICU]
+                libcxx.LibCXX]