Meta: Add an overlay port for ICU

This will allow us to upgrade to ICU 76 independent of upstream vcpkg.

Meta/CMake/vcpkg/overlay-ports/icu/darwin-rpath.patch

@@ -0,0 +1,14 @@
+diff --git a/source/config/mh-darwin b/source/config/mh-darwin
+index 7b15709..e2cdbdb 100644
+--- a/source/config/mh-darwin
++++ b/source/config/mh-darwin
+@@ -31,7 +31,8 @@ SHLIB.cc=	$(CXX) -dynamiclib -dynamic $(CXXFLAGS) $(LDFLAGS) $(LD_SOOPTIONS)
+ 
+ ## Compiler switches to embed a library name and version information
+ ifeq ($(ENABLE_RPATH),YES)
+-LD_SONAME = -Wl,-compatibility_version -Wl,$(SO_TARGET_VERSION_MAJOR) -Wl,-current_version -Wl,$(SO_TARGET_VERSION) -install_name $(libdir)/$(notdir $(MIDDLE_SO_TARGET))
++ID_PREFIX = @rpath
++LD_SONAME = -Wl,-compatibility_version -Wl,$(SO_TARGET_VERSION_MAJOR) -Wl,-current_version -Wl,$(SO_TARGET_VERSION) -install_name $(ID_PREFIX)/$(notdir $(MIDDLE_SO_TARGET))
+ else
+ LD_SONAME = -Wl,-compatibility_version -Wl,$(SO_TARGET_VERSION_MAJOR) -Wl,-current_version -Wl,$(SO_TARGET_VERSION) -install_name $(notdir $(MIDDLE_SO_TARGET)) $(PKGDATA_TRAILING_SPACE)
+ endif

Meta/CMake/vcpkg/overlay-ports/icu/disable-escapestr-tool.patch

@@ -0,0 +1,17 @@
+diff --git a/source/tools/Makefile.in b/source/tools/Makefile.in
+index e0896f1..5ead980 100644
+--- a/source/tools/Makefile.in
++++ b/source/tools/Makefile.in
+@@ -19,9 +19,9 @@ SUBDIRS = toolutil ctestfw makeconv genrb genbrk \
+ gencnval gensprep icuinfo genccode gencmn icupkg pkgdata \
+ gentest gennorm2 gencfu gendict icuexportdata
+ 
+-ifneq (@platform_make_fragment_name@,mh-cygwin-msvc)
+-SUBDIRS += escapesrc
+-endif
++#ifneq (@platform_make_fragment_name@,mh-cygwin-msvc)
++#SUBDIRS += escapesrc
++#endif
+ 
+ ## List of phony targets
+ .PHONY : all all-local all-recursive install install-local	\

Meta/CMake/vcpkg/overlay-ports/icu/disable-static-prefix.patch

@@ -0,0 +1,20 @@
+diff --git a/source/icudefs.mk.in b/source/icudefs.mk.in
+index 24bd97a..33169de 100644
+--- a/source/icudefs.mk.in
++++ b/source/icudefs.mk.in
+@@ -213,13 +213,13 @@ LIBICU = $(LIBPREFIX)$(ICUPREFIX)
+ 
+ ## If we can't use the shared libraries, use the static libraries
+ ifneq ($(ENABLE_SHARED),YES)
+-STATIC_PREFIX_WHEN_USED = s
++STATIC_PREFIX_WHEN_USED =
+ else
+ STATIC_PREFIX_WHEN_USED = 
+ endif
+ 
+ # Static library prefix and file extension
+-STATIC_PREFIX = s
++STATIC_PREFIX =
+ LIBSICU = $(LIBPREFIX)$(STATIC_PREFIX)$(ICUPREFIX)
+ A = a
+ SOBJ = $(SO)

Meta/CMake/vcpkg/overlay-ports/icu/fix-extra.patch

@@ -0,0 +1,13 @@
+diff --urN a/source/extra/Makefile.in b/source/extra/Makefile.in
+--- a/source/extra/Makefile.in
++++ b/source/extra/Makefile.in 
+@@ -23,7 +23,7 @@
+ ## Files to remove for 'make clean'
+ CLEANFILES = *~
+ 
+-SUBDIRS = scrptrun uconv
++SUBDIRS = uconv
+ 
+ ## List of phony targets
+ .PHONY : all all-local all-recursive install install-local		\
+

Meta/CMake/vcpkg/overlay-ports/icu/fix-win-build.patch

@@ -0,0 +1,35 @@
+diff --git a/source/configure.ac b/source/configure.ac
+index 425fdc7..97210f8 100644
+--- a/source/configure.ac
++++ b/source/configure.ac
+@@ -114,6 +114,15 @@ AC_ARG_ENABLE([icu-config],
+         esac], [enable_icu_config=true])
+ AC_SUBST(INSTALL_ICU_CONFIG, [$enable_icu_config])
+ 
++AC_ARG_ENABLE([icu-build-win],
++    AS_HELP_STRING([--enable-icu-build-win], [install icu-build-win]),
++        [case "${enableval}" in
++            yes) enable_icu_build_win=true ;;
++            no) enable_icu_build_win=false ;;
++            *) AC_MSG_ERROR([bad value '${enableval}' for --enable-icu-build-win]) ;;
++        esac], [enable_icu_build_win=true])
++AC_SUBST(INSTALL_ICU_BUILD_WIN, [$enable_icu_build_win])
++
+ # Check whether to build debug libraries
+ AC_MSG_CHECKING([whether to build debug libraries])
+ enabled=no
+@@ -263,12 +272,14 @@ ICU_CHECK_MH_FRAG
+ # Checks for libraries and other host specific stuff
+ # On HP/UX, don't link to -lm from a shared lib because it isn't
+ #  PIC (at least on 10.2)
++if test "$enable_icu_build_win" = no; then
+ case "${host}" in
+ 	*-*-hpux*) 	AC_CHECK_LIB(m, floor, LIB_M="-lm") ;;
+ 
+ 	*) 		AC_CHECK_LIB(m, floor)
+ 			LIB_M="" ;;
+ esac
++fi
+ AC_SUBST(LIB_M)
+ 
+ # Check whether to build shared libraries

Meta/CMake/vcpkg/overlay-ports/icu/fix_parallel_build_on_windows.patch

@@ -0,0 +1,25 @@
+diff --urN a/source/data/Makefile.in b/source/data/Makefile.in
+--- a/source/data/Makefile.in
++++ b/source/data/Makefile.in
+@@ -236,11 +236,12 @@
+ ## Include the main build rules for data files
+ include $(top_builddir)/$(subdir)/rules.mk
+ 
++PKGDATA_LIST = $(TMP_DIR)/icudata.lst
+ 
+ ifeq ($(ENABLE_SO_VERSION_DATA),1)
+ ifeq ($(PKGDATA_MODE),dll)
+ SO_VERSION_DATA = $(OUTTMPDIR)/icudata.res
+-$(SO_VERSION_DATA) : $(MISCSRCDIR)/icudata.rc | $(TMP_DIR)/dirs.timestamp
++$(SO_VERSION_DATA) : $(MISCSRCDIR)/icudata.rc $(PKGDATA_LIST)
+ ifeq ($(MSYS_RC_MODE),1)
+ 	rc.exe -i$(srcdir)/../common -i$(top_builddir)/common -fo$@ $(CPPFLAGS) $<
+ else
+@@ -249,7 +250,6 @@
+ endif
+ endif
+ 
+-PKGDATA_LIST = $(TMP_DIR)/icudata.lst
+ 
+ 
+ #####################################################

Meta/CMake/vcpkg/overlay-ports/icu/mingw-dll-install.patch

@@ -0,0 +1,26 @@
+diff --git a/source/config/mh-mingw b/source/config/mh-mingw
+index 30f6e5be81..b6364551ea 100644
+--- a/source/config/mh-mingw
++++ b/source/config/mh-mingw
+@@ -13,7 +13,7 @@
+ # On Windows we generally have the DLLs in the bin directory rather than the lib directory.
+ # This setting moves the ICU DLLs into the bin folder for MinGW/MSYS2 when "make install" is run.
+ # If you prefer to have the DLLs in the lib folder, then set this to NO instead.
+-MINGW_MOVEDLLSTOBINDIR = YES
++MINGW_MOVEDLLSTOBINDIR = NO
+ 
+ # We install sbin tools into the same bin directory because
+ # pkgdata needs some of the tools in sbin, and we can't always depend on
+diff --git a/source/config/mh-mingw64 b/source/config/mh-mingw64
+index fb64c56260..a43cc4dd71 100644
+--- a/source/config/mh-mingw64
++++ b/source/config/mh-mingw64
+@@ -10,7 +10,7 @@
+ # On Windows we generally have the DLLs in the bin directory rather than the lib directory.
+ # This setting moves the ICU DLLs into the bin folder for MinGW/MSYS2 when "make install" is run.
+ # If you prefer to have the DLLs in the lib folder, then set this to NO instead.
+-MINGW_MOVEDLLSTOBINDIR = YES
++MINGW_MOVEDLLSTOBINDIR = NO
+ 
+ # This file is similar to mh-mingw
+ # Any changes made here may also need to be made in mh-mingw

Meta/CMake/vcpkg/overlay-ports/icu/mingw-strict-ansi.diff

@@ -0,0 +1,12 @@
+diff --git a/source/common/putil.cpp b/source/common/putil.cpp
+index ab25f3b..94782f8 100644
+--- a/source/common/putil.cpp
++++ b/source/common/putil.cpp
+@@ -48,7 +48,6 @@
+ 
+ #if U_PLATFORM == U_PF_MINGW && defined __STRICT_ANSI__
+ /* tzset isn't defined in strict ANSI on MinGW. */
+-#undef __STRICT_ANSI__
+ #endif
+ 
+ /*

Meta/CMake/vcpkg/overlay-ports/icu/portfile.cmake

@@ -0,0 +1,163 @@
+if(NOT VCPKG_TARGET_IS_WINDOWS)
+    message(WARNING "${PORT} currently requires the following programs from the system package manager:
+    autoconf automake autoconf-archive
+On Debian and Ubuntu derivatives:
+    sudo apt-get install autoconf automake autoconf-archive
+On recent Red Hat and Fedora derivatives:
+    sudo dnf install autoconf automake autoconf-archive
+On Arch Linux and derivatives:
+    sudo pacman -S autoconf automake autoconf-archive
+On Alpine:
+    apk add autoconf automake autoconf-archive
+On macOS:
+    brew install autoconf automake autoconf-archive\n")
+endif()
+
+string(REGEX MATCH "^[0-9]*" ICU_VERSION_MAJOR "${VERSION}")
+string(REPLACE "." "_" VERSION2 "${VERSION}")
+string(REPLACE "." "-" VERSION3 "${VERSION}")
+
+vcpkg_download_distfile(
+    ARCHIVE
+    URLS "https://github.com/unicode-org/icu/releases/download/release-${VERSION3}/icu4c-${VERSION2}-src.tgz"
+    FILENAME "icu4c-${VERSION2}-src.tgz"
+    SHA512 e6c7876c0f3d756f3a6969cad9a8909e535eeaac352f3a721338b9cbd56864bf7414469d29ec843462997815d2ca9d0dab06d38c37cdd4d8feb28ad04d8781b0
+)
+
+vcpkg_extract_source_archive(SOURCE_PATH
+    ARCHIVE "${ARCHIVE}"
+    PATCHES
+        disable-escapestr-tool.patch
+        remove-MD-from-configure.patch
+        fix_parallel_build_on_windows.patch
+        fix-extra.patch
+        mingw-dll-install.patch
+        disable-static-prefix.patch # https://gitlab.kitware.com/cmake/cmake/-/issues/16617; also mingw.
+        fix-win-build.patch
+        vcpkg-cross-data.patch
+        darwin-rpath.patch
+        mingw-strict-ansi.diff # backport of https://github.com/unicode-org/icu/pull/3003
+)
+
+vcpkg_find_acquire_program(PYTHON3)
+set(ENV{PYTHON} "${PYTHON3}")
+
+vcpkg_list(SET CONFIGURE_OPTIONS)
+vcpkg_list(SET BUILD_OPTIONS)
+
+if(VCPKG_TARGET_IS_EMSCRIPTEN)
+    vcpkg_list(APPEND CONFIGURE_OPTIONS --disable-extras)
+    vcpkg_list(APPEND BUILD_OPTIONS "PKGDATA_OPTS=--without-assembly -O ../data/icupkg.inc")
+elseif(VCPKG_TARGET_IS_UWP)
+    vcpkg_list(APPEND CONFIGURE_OPTIONS --disable-extras ac_cv_func_tzset=no ac_cv_func__tzset=no)
+    string(APPEND VCPKG_C_FLAGS " -DU_PLATFORM_HAS_WINUWP_API=1")
+    string(APPEND VCPKG_CXX_FLAGS " -DU_PLATFORM_HAS_WINUWP_API=1")
+    vcpkg_list(APPEND BUILD_OPTIONS "PKGDATA_OPTS=--windows-uwp-build -O ../data/icupkg.inc")
+elseif(VCPKG_TARGET_IS_OSX AND VCPKG_LIBRARY_LINKAGE STREQUAL "dynamic")
+    vcpkg_list(APPEND CONFIGURE_OPTIONS --enable-rpath)
+    if(DEFINED CMAKE_INSTALL_NAME_DIR)
+        vcpkg_list(APPEND BUILD_OPTIONS "ID_PREFIX=${CMAKE_INSTALL_NAME_DIR}")
+    endif()
+endif()
+
+if(VCPKG_TARGET_IS_WINDOWS)
+    list(APPEND CONFIGURE_OPTIONS --enable-icu-build-win)
+endif()
+
+if("tools" IN_LIST FEATURES)
+  list(APPEND CONFIGURE_OPTIONS --enable-tools)
+else()
+  list(APPEND CONFIGURE_OPTIONS --disable-tools)
+endif()
+if(CMAKE_HOST_WIN32 AND VCPKG_TARGET_IS_MINGW AND NOT HOST_TRIPLET MATCHES "mingw")
+    # Assuming no cross compiling because the host (windows) pkgdata tool doesn't
+    # use the '/' path separator when creating compiler commands for mingw bash.
+elseif(VCPKG_CROSSCOMPILING)
+    set(TOOL_PATH "${CURRENT_HOST_INSTALLED_DIR}/tools/${PORT}")
+    # convert to unix path
+    string(REGEX REPLACE "^([a-zA-Z]):/" "/\\1/" _VCPKG_TOOL_PATH "${TOOL_PATH}")
+    list(APPEND CONFIGURE_OPTIONS "--with-cross-build=${_VCPKG_TOOL_PATH}")
+endif()
+
+vcpkg_configure_make(
+    SOURCE_PATH "${SOURCE_PATH}"
+    PROJECT_SUBPATH source
+    AUTOCONFIG
+    DETERMINE_BUILD_TRIPLET
+    ADDITIONAL_MSYS_PACKAGES autoconf-archive
+    OPTIONS
+        ${CONFIGURE_OPTIONS}
+        --disable-samples
+        --disable-tests
+        --disable-layoutex
+    OPTIONS_RELEASE
+        --disable-debug
+        --enable-release
+    OPTIONS_DEBUG
+        --enable-debug
+        --disable-release
+)
+vcpkg_install_make(OPTIONS ${BUILD_OPTIONS})
+
+file(REMOVE_RECURSE
+    "${CURRENT_PACKAGES_DIR}/share"
+    "${CURRENT_PACKAGES_DIR}/debug/share"
+    "${CURRENT_PACKAGES_DIR}/lib/icu"
+    "${CURRENT_PACKAGES_DIR}/debug/lib/icu"
+    "${CURRENT_PACKAGES_DIR}/debug/lib/icud")
+
+file(GLOB TEST_LIBS
+    "${CURRENT_PACKAGES_DIR}/lib/*test*"
+    "${CURRENT_PACKAGES_DIR}/debug/lib/*test*")
+if(TEST_LIBS)
+    file(REMOVE ${TEST_LIBS})
+endif()
+
+if(VCPKG_LIBRARY_LINKAGE STREQUAL "static")
+    # force U_STATIC_IMPLEMENTATION macro
+    foreach(HEADER utypes.h utf_old.h platform.h)
+        vcpkg_replace_string("${CURRENT_PACKAGES_DIR}/include/unicode/${HEADER}" "defined(U_STATIC_IMPLEMENTATION)" "1")
+    endforeach()
+endif()
+
+# Install executables from /tools/icu/sbin to /tools/icu/bin on unix (/bin because icu require this for cross compiling)
+if(VCPKG_TARGET_IS_LINUX OR VCPKG_TARGET_IS_OSX AND "tools" IN_LIST FEATURES)
+    vcpkg_copy_tools(
+        TOOL_NAMES icupkg gennorm2 gencmn genccode gensprep
+        SEARCH_DIR "${CURRENT_PACKAGES_DIR}/tools/icu/sbin"
+        DESTINATION "${CURRENT_PACKAGES_DIR}/tools/${PORT}/bin"
+    )
+endif()
+
+file(REMOVE_RECURSE
+    "${CURRENT_PACKAGES_DIR}/tools/icu/sbin"
+    "${CURRENT_PACKAGES_DIR}/tools/icu/debug")
+
+# To cross compile, we need some files at specific positions. So lets copy them
+file(GLOB CROSS_COMPILE_DEFS "${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}-rel/config/icucross.*")
+file(INSTALL ${CROSS_COMPILE_DEFS} DESTINATION "${CURRENT_PACKAGES_DIR}/tools/${PORT}/config")
+
+file(GLOB RELEASE_DLLS "${CURRENT_PACKAGES_DIR}/lib/*icu*${ICU_VERSION_MAJOR}.dll")
+file(COPY ${RELEASE_DLLS} DESTINATION "${CURRENT_PACKAGES_DIR}/tools/${PORT}/bin")
+
+# copy dlls
+file(GLOB RELEASE_DLLS "${CURRENT_PACKAGES_DIR}/lib/*icu*${ICU_VERSION_MAJOR}.dll")
+file(COPY ${RELEASE_DLLS} DESTINATION "${CURRENT_PACKAGES_DIR}/bin")
+if(NOT VCPKG_BUILD_TYPE)
+    file(GLOB DEBUG_DLLS "${CURRENT_PACKAGES_DIR}/debug/lib/*icu*${ICU_VERSION_MAJOR}.dll")
+    file(COPY ${DEBUG_DLLS} DESTINATION "${CURRENT_PACKAGES_DIR}/debug/bin")
+endif()
+
+# remove any remaining dlls in /lib
+file(GLOB DUMMY_DLLS "${CURRENT_PACKAGES_DIR}/lib/*.dll" "${CURRENT_PACKAGES_DIR}/debug/lib/*.dll")
+if(DUMMY_DLLS)
+    file(REMOVE ${DUMMY_DLLS})
+endif()
+
+vcpkg_copy_pdbs()
+vcpkg_fixup_pkgconfig()
+
+vcpkg_replace_string("${CURRENT_PACKAGES_DIR}/tools/icu/bin/icu-config" "${CURRENT_INSTALLED_DIR}" "`dirname $0`/../../../" IGNORE_UNCHANGED)
+
+file(INSTALL "${CMAKE_CURRENT_LIST_DIR}/vcpkg-cmake-wrapper.cmake" DESTINATION "${CURRENT_PACKAGES_DIR}/share/${PORT}")
+vcpkg_install_copyright(FILE_LIST "${SOURCE_PATH}/LICENSE")

Meta/CMake/vcpkg/overlay-ports/icu/remove-MD-from-configure.patch

@@ -0,0 +1,18 @@
+diff -urN a/source/runConfigureICU b/source/runConfigureICU
+--- a/source/runConfigureICU	2018-03-26 21:38:44.000000000 +0800
++++ b/source/runConfigureICU	2018-08-26 09:04:53.197454400 +0800
+@@ -322,10 +322,10 @@
+         THE_COMP="Microsoft Visual C++"
+         CC=cl; export CC
+         CXX=cl; export CXX
+-        RELEASE_CFLAGS='-Gy -MD'
+-        RELEASE_CXXFLAGS='-Gy -MD'
+-        DEBUG_CFLAGS='-FS -Zi -MDd'
+-        DEBUG_CXXFLAGS='-FS -Zi -MDd'
++        RELEASE_CFLAGS='-Gy'
++        RELEASE_CXXFLAGS='-Gy'
++        DEBUG_CFLAGS='-FS -Zi'
++        DEBUG_CXXFLAGS='-FS -Zi'
+         DEBUG_LDFLAGS='-DEBUG'
+         ;;
+     *BSD)

Meta/CMake/vcpkg/overlay-ports/icu/vcpkg-cmake-wrapper.cmake

@@ -0,0 +1,8 @@
+cmake_policy(PUSH)
+cmake_policy(SET CMP0057 NEW)
+if(NOT "COMPONENTS" IN_LIST ARGS)
+    _find_package(${ARGS} COMPONENTS data)
+else()
+    _find_package(${ARGS})
+endif()
+cmake_policy(POP)

Meta/CMake/vcpkg/overlay-ports/icu/vcpkg-cross-data.patch

@@ -0,0 +1,13 @@
+diff --git a/source/configure.ac b/source/configure.ac
+index 1bd5871..c508f48 100644
+--- a/source/configure.ac
++++ b/source/configure.ac
+@@ -1151,7 +1151,7 @@ AC_ARG_ENABLE(fuzzer,
+ 	fuzzer=false)
+ ICU_CONDITIONAL(FUZZER, test "$fuzzer" = true)
+ 
+-ICU_CONDITIONAL(DATA, test "$tools" = true || test "$cross_compiling" = "yes")
++ICU_CONDITIONAL(DATA, test "$tools" = true || test "$cross_compiling" = "yes" || test -n "$cross_buildroot")
+ 
+ AC_ARG_WITH(data-packaging,
+ 	[  --with-data-packaging     specify how to package ICU data. Possible values:

Meta/CMake/vcpkg/overlay-ports/icu/vcpkg.json

@@ -0,0 +1,23 @@
+{
+  "name": "icu",
+  "version": "74.2",
+  "port-version": 4,
+  "description": "Mature and widely used Unicode and localization library.",
+  "homepage": "https://icu.unicode.org/home",
+  "license": "ICU",
+  "dependencies": [
+    {
+      "name": "icu",
+      "host": true,
+      "features": [
+        "tools"
+      ]
+    }
+  ],
+  "features": {
+    "tools": {
+      "description": "Build tools",
+      "supports": "!uwp"
+    }
+  }
+}