]> git.saurik.com Git - apple/icu.git/blobdiff - makefile
ICU-64260.0.1.tar.gz
[apple/icu.git] / makefile
index 9a4612156605cd07c5920644c7d7c845acd1e86c..de80321defb9763c547d995c5b46960f554dcd90 100644 (file)
--- a/makefile
+++ b/makefile
@@ -1,10 +1,92 @@
 ##
-# Makefile for ICU
+# Wrapper makefile for ICU
+# Copyright (C) 2003-2018 Apple Inc. All rights reserved.
 #
 # See http://www.gnu.org/manual/make/html_chapter/make_toc.html#SEC_Contents
 # for documentation on makefiles. Most of this was culled from the ncurses makefile.
 #
-##
+#################################
+# Apple ICU repository tag and submission numbers
+#
+# The repository tag number consists of a main version and an optional branch version, as
+# follows:
+# ICU-MMmAA[.B]
+#
+# MM comes from the open-source ICU major version, and can range from 1 to 214 (the max is
+#    due to B&I limits on submission versions). As of March 2016 this is 57; it increases
+#    by 1 for each ICU major release (usually 2 / year). This corresponds to
+#    U_ICU_VERSION_MAJOR_NUM.
+# m  is a single digit specifying the open-source ICU minor version. This is 0 before final
+#    release (e.g. for pre-release milestones), becomes 1 for release candidate and final
+#    release, and may increase to 2 or a little more for occasional dot releases with
+#    maintenance fixes. This corresponds to U_ICU_VERSION_MINOR_NUM.
+#
+#    Note that the ICU release may also utilize U_ICU_VERSION_PATCHLEVEL_NUM; however
+#    that is ignored for the Apple ICU tag and submission numbers, and any related code
+#    or data changes will bne distinguished by updating the Apple delta version AA below.
+#
+# AA is a 2-digit value specifying the version of the additional Apple deltas after
+#    integrating a major release. This is always 2 digits (zero padded) and ranges from
+#    00 (the first release after integrating a new ICU version) to 99.
+# B  is an optional branch version, i.e. a branch from the mainline version specified by
+#    the MMmAA part. It can range from 1 to 99 and is NOT zero-padded.
+#
+#    For Windows builds, the first 3 values of the 4-part FILEVERSION and PRODUCTVERSION
+#    are formed from U_ICU_VERSION_MAJOR_NUM, U_ICU_VERSION_MINOR_NUM, and
+#    U_ICU_VERSION_PATCHLEVEL_NUM; the 4th value is ICU_BUILD, formed from AA and B as
+#    ICU_BUILD = 100*AA + B.
+#
+# The B&I submission version always has 3 parts separated by '.':
+# MMmAA.(0 | B).T
+#
+# The first part MMmAA is the same as the repository tag number.
+# If the repository tag has no branch version, the second part is 0, otherwise it is
+# the same as the branch version (1..99).
+# The third part is a single digit designating the submission train; since the installsrc
+# target now submits different sources to different trains, we have to distinguish them.
+# The values currently defined for T are
+# 1  OSX trains
+# 2  embedded trains (iOS, tvos, watchos, bridgeos) including simulator versions thereof
+# 8  AAS for Windows
+# 9  linux for Siri servers
+# (additional train numbers for Apple platforms can be assigned from 3 up, additional
+# train numbers for non-Apple platforms can be assigned from 7 down).
+#
+#################################
+# Notes on building for AAS using Windows (10) + Visual Studio (2015) + Cygwin:
+#
+# Either this should be run indirectly from the VS command prompt via the
+# BuildICUForAAS script or project, using the instructions there (which build
+# both 32-bit and 64-bit), or it should be run from within Cygwin using the
+# following instructions or equivalent (different steps for 32-bit or 64-bit
+# targets, details may also differ if you have the 32-bit cygwin install vs the
+# 64-bit one, i.e. cygwin vs cygwin64):
+#
+# 1. From VS command prompt, run vcvarsall.bat to set various environment variables.
+#    For a 32-bit build:
+#    > "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat" x86
+#    For a 64-bit build:
+#    > "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat" amd64
+#
+# 2. Launch Cygwin, e.g. for the 64-bit cygwin install:
+#    > C:\cygwin64\cygwin.bat
+#
+# 3. Within cygwin, cd to the top level of the ICU sources directory, e.g.
+#    $ cd ICU
+#
+# 4. Adjust the PATH to put the appropriate VC tools directory first:
+#    For a 32-bit build:
+#    $ export PATH="/cygdrive/c/Program Files (x86)/Microsoft Visual Studio 14.0/VC/bin/":$PATH
+#    For a 64-bit build:
+#    $ export PATH="/cygdrive/c/Program Files (x86)/Microsoft Visual Studio 14.0/VC/bin/amd64/":$PATH
+#
+# 5. Run the ICU makefile
+#    For a 32-bit build:
+#    make [install] WINDOWS=YES [ARCH64=NO] [DSTROOT=...]
+#    For a 64-bit build:
+#    make [install] WINDOWS=YES ARCH64=YES [DSTROOT=...]
+#
+#################################
 
 #################################
 #################################
 # when used. This is in contrast to using '=' which denotes a
 # recursively expanded variable.
 
-SHELL := /bin/sh
-
-# Sane defaults, which are typically overridden on the command line.
-MINIMAL=NO
-WINDOWS=NO
-SRCROOT=$(shell pwd)
-OBJROOT=$(SRCROOT)/build
-DSTROOT=$(OBJROOT)
-SYMROOT=$(OBJROOT)
-APPLE_INTERNAL_DIR=/AppleInternal
-TZDATA=$(lastword $(wildcard /usr/local/share/tz/tzdata*.tar.gz))
+# Sane defaults, which are typically overridden on the command line
+#or by the environment
+ifeq ($(OS),Windows_NT)
+       WINDOWS=YES
+       LINUX=NO
+else
+       WINDOWS=NO
+       LINUX?=$(shell [[ "`uname -s`" == "Linux" ]] && echo YES || echo NO)
+endif
+ARCH64?=YES
 RC_ARCHS=
-DISABLE_DRAFT=NO
+ifndef RC_ProjectSourceVersion
+ifdef RC_PROJECTSOURCEVERSION
+       RC_ProjectSourceVersion=$(RC_PROJECTSOURCEVERSION)
+endif
+endif
+$(info # RC_XBS=$(RC_XBS))
+$(info # RC_ARCHS=$(RC_ARCHS))
+$(info # RC_ProjectName=$(RC_ProjectName))
+$(info # RC_ProjectSourceVersion=$(RC_ProjectSourceVersion))
 
-ifeq "$(DISABLE_DRAFT)" "YES"
-       DRAFT_FLAG=--disable-draft
-else
-       DRAFT_FLAG=
+# Disallow $(WINDOWS) and $(LINUX) both YES
+ifeq "$(WINDOWS)" "YES"
+       ifeq "$(LINUX)" "YES"
+               $(error WINDOWS and LINUX cannot both be YES)
+       endif
 endif
 
-ifeq "$(MINIMAL)" "YES"
-       THUMB_FLAG = -mthumb
+# chicken and egg problem: we can't use cygpath until PATH & SHELL are set,
+# but we have to convert VS140VCTOOLS_PATH in order to set PATH. So instead we
+# convert using subst.
+ifeq "$(WINDOWS)" "YES"
+       ifneq "$(VS140VCTOOLS_PATH)" ""
+               VS140VCTOOLS_CYGPATH:= /cygdrive/$(subst :/,/,$(subst \,/,$(VS140VCTOOLS_PATH)))
+               PATH:=$(VS140VCTOOLS_CYGPATH):/usr/local/bin/:/usr/bin/:$(PATH)
+       endif
+endif
+$(info # PATH=$(PATH))
+
+# For some reason, cygwin bash (at least when run non-login) needs to use
+# bash for pwd, echo etc. (but uname does not work, see below)
+ifeq "$(WINDOWS)" "YES"
+       SHELL := /bin/bash
 else
-       THUMB_FLAG =
+       SHELL := /bin/sh
 endif
 
-ifndef RC_ProjectSourceVersion
-ifdef RC_PROJECTSOURCEVERSION
-       RC_ProjectSourceVersion=$(RC_PROJECTSOURCEVERSION)
+# if building for windows from batch script, convert Win-style paths
+# for SRCROOT etc. to cygwin-style paths. Don't define them if not
+# already defined.
+ifeq "$(WINDOWS)" "YES"
+       ifneq "$(VS140VCTOOLS_PATH)" ""
+               ifdef SRCROOT
+                       SRCROOT:=$(shell /bin/cygpath -ua $(subst \,/,$(SRCROOT)))
+               endif
+               ifdef OBJROOT
+                       OBJROOT:=$(shell /bin/cygpath -ua $(subst \,/,$(OBJROOT)))
+               endif
+               ifdef DSTROOT
+                       DSTROOT:=$(shell /bin/cygpath -ua $(subst \,/,$(DSTROOT)))
+               endif
+               ifdef SYMROOT
+                       SYMROOT:=$(shell /bin/cygpath -ua $(subst \,/,$(SYMROOT)))
+               endif
+       endif
+endif
+
+ifndef SRCROOT
+       SRCROOT:=$(shell pwd)
+endif
+ifndef OBJROOT
+       OBJROOT:=$(SRCROOT)/build
 endif
+ifndef DSTROOT
+       DSTROOT:=$(OBJROOT)
+endif
+ifndef SYMROOT
+       SYMROOT:=$(OBJROOT)
+endif
+$(info # SRCROOT=$(SRCROOT))
+$(info # OBJROOT=$(OBJROOT))
+$(info # DSTROOT=$(DSTROOT))
+
+# Disallow $(SRCROOT) == $(OBJROOT)
+ifeq ($(OBJROOT), $(SRCROOT))
+$(error SRCROOT same as OBJROOT)
 endif
 
+ifeq "$(WINDOWS)" "YES"
+       ifeq "$(ARCH64)" "YES"
+               OBJROOT_CURRENT=$(OBJROOT)/obj64
+               SYMROOT_CURRENT=$(SYMROOT)/obj64
+       else
+               OBJROOT_CURRENT=$(OBJROOT)/obj32
+               SYMROOT_CURRENT=$(SYMROOT)/obj32
+       endif
+else ifeq "$(LINUX)" "YES"
+       ifeq "$(ARCH64)" "YES"
+               OBJROOT_CURRENT=$(OBJROOT)/obj64
+               SYMROOT_CURRENT=$(SYMROOT)/obj64
+       else
+               OBJROOT_CURRENT=$(OBJROOT)/obj32
+               SYMROOT_CURRENT=$(SYMROOT)/obj32
+       endif
+else
+       OBJROOT_CURRENT=$(OBJROOT)
+       SYMROOT_CURRENT=$(SYMROOT)
+endif
+
+ifndef SDKROOT
+       SDKPATH:=/
+else ifeq "$(SDKROOT)" ""
+       SDKPATH:=/
+else
+       SDKPATH:=$(shell xcodebuild -version -sdk $(SDKROOT) Path)
+       ifeq "$(SDKPATH)" ""
+               SDKPATH:=/
+       endif
+endif
+$(info # SDKROOT=$(SDKROOT))
+$(info # SDKPATH=$(SDKPATH))
+
+# An Apple submission version (passed in RC_ProjectSourceVersion for official builds) is
+# X[.Y[.Z]]
+# where X is in range 0-214747, Y and Z are in range 0-99 (with no leading zeros).
+# This corresponds to MMmAA.(0 | B).T where
+# MM is U_ICU_VERSION_MAJOR_NUM
+# m  is U_ICU_VERSION_MINOR_NUM
+# AA is the Apple delta version
+# B  is the Apple branch version (1 or 2 digits)
+# T  is the Apple train code for submissions.
+# Note The value for the SourceVersion property in version.plists will be calculated as
+# (X*10000 + Y*100 + Z).
+# We want ICU_BUILD = 100*AA + B.
+#
 ifneq "$(RC_ProjectSourceVersion)" ""
        ifeq "$(WINDOWS)" "YES"
-               ICU_BUILD := $(shell echo $(RC_ProjectSourceVersion) | sed -r -e 's/[0-9]+.([0-9]+)(.[0-9]+)?/\1/')
+               ICU_BUILD_AA  := $(shell echo $(RC_ProjectSourceVersion) | /usr/bin/sed -r -e 's/([0-9]+)([0-9]{2})(\.([0-9])([0-9])?(\.([0-9]{1,2}))?)?/\2/')
+               ICU_BUILD_B1 := $(shell echo $(RC_ProjectSourceVersion) | /usr/bin/sed -r -e 's/([0-9]+)([0-9]{2})(\.([0-9])([0-9])?(\.([0-9]{1,2}))?)?/\4/')
+               ICU_BUILD_B2 := $(shell echo $(RC_ProjectSourceVersion) | /usr/bin/sed -r -e 's/([0-9]+)([0-9]{2})(\.([0-9])([0-9])?(\.([0-9]{1,2}))?)?/\5/')
+               ICU_TRAIN_CODE := $(shell echo $(RC_ProjectSourceVersion) | /usr/bin/sed -r -e 's/([0-9]+)([0-9]{2})(\.([0-9])([0-9])?(\.([0-9]{1,2}))?)?/\7/')
        else
-               ICU_BUILD := $(shell echo $(RC_ProjectSourceVersion) | sed -E -e 's/[0-9]+.([0-9]+)(.[0-9]+)?/\1/')
+               ICU_BUILD_AA  := $(shell echo $(RC_ProjectSourceVersion) | sed -E -e 's/([0-9]+)([0-9]{2})(\.([0-9])([0-9])?(\.([0-9]{1,2}))?)?/\2/')
+               ICU_BUILD_B1 := $(shell echo $(RC_ProjectSourceVersion) | sed -E -e 's/([0-9]+)([0-9]{2})(\.([0-9])([0-9])?(\.([0-9]{1,2}))?)?/\4/')
+               ICU_BUILD_B2 := $(shell echo $(RC_ProjectSourceVersion) | sed -E -e 's/([0-9]+)([0-9]{2})(\.([0-9])([0-9])?(\.([0-9]{1,2}))?)?/\5/')
+               ICU_TRAIN_CODE := $(shell echo $(RC_ProjectSourceVersion) | sed -E -e 's/([0-9]+)([0-9]{2})(\.([0-9])([0-9])?(\.([0-9]{1,2}))?)?/\7/')
+       endif
+       ifeq "$(ICU_BUILD_AA)" ""
+               ICU_BUILD := 0
+       else
+               ICU_BUILD := $(subst a,$(ICU_BUILD_AA),abc)
+               ifeq "$(ICU_BUILD_B1)" ""
+                       ICU_BUILD := $(subst b,0,$(ICU_BUILD))
+                       ICU_BUILD := $(subst c,0,$(ICU_BUILD))
+               else
+                       ifeq "$(ICU_BUILD_B2)" ""
+                               ICU_BUILD := $(subst b,0,$(ICU_BUILD))
+                               ICU_BUILD := $(subst c,$(ICU_BUILD_B1),$(ICU_BUILD))
+                       else
+                               ICU_BUILD := $(subst b,$(ICU_BUILD_B1),$(ICU_BUILD))
+                               ICU_BUILD := $(subst c,$(ICU_BUILD_B2),$(ICU_BUILD))
+                       endif
+               endif
+       endif
+       ifeq "$(ICU_TRAIN_CODE)" ""
+               ICU_TRAIN_CODE := 0
        endif
 else
        ICU_BUILD := 0
+       ICU_TRAIN_CODE := 0
+endif
+$(info # ICU_BUILD=$(ICU_BUILD))
+$(info # ICU_TRAIN_CODE=$(ICU_TRAIN_CODE))
+ifeq "$(ICU_BUILD)" "0"
+       DEFINE_BUILD_LEVEL =
+else
+       DEFINE_BUILD_LEVEL =-DU_ICU_VERSION_BUILDLEVEL_NUM=$(ICU_BUILD)
 endif
 
-# Disallow $(SRCROOT) == $(OBJROOT)
-ifeq ($(OBJROOT), $(SRCROOT))
-$(error SRCROOT same as OBJROOT)
+# Determine build type. In some cases (e.g. running installsrc for submitproject)
+# the only accurate information we may have about build type is from ICU_TRAIN_CODE,
+# so give priority to that if nonzero.
+# The values currently defined for ICU_TRAIN_CODE and corresponding ICU_BUILD_TYPE are
+# 1  OSX trains
+# 2  embedded trains (iOS, tvos, watchos) including simulator versions thereof.
+#    may have BUILD_TYPE=DEVICE,SIMULATOR,TOOL
+# 8  AAS for Windows
+# 9  linux for Siri servers
+#
+ifeq "$(WINDOWS)" "YES"
+       ICU_FOR_APPLE_PLATFORMS:=NO
+else ifeq "$(ICU_TRAIN_CODE)" "8"
+       override WINDOWS=YES
+       ICU_FOR_APPLE_PLATFORMS:=NO
+else ifeq "$(LINUX)" "YES"
+       ICU_FOR_APPLE_PLATFORMS:=NO
+else ifeq "$(ICU_TRAIN_CODE)" "9"
+       override LINUX=YES
+       ICU_FOR_APPLE_PLATFORMS:=NO
+else
+       ICU_FOR_APPLE_PLATFORMS:=YES
+endif
+
+# For Apple builds, get more details from the SDK if available
+# In TargetConditionals.h:
+# TARGET_OS_IPHONE -is 1 iff generating code for firmware, devices, or simulator (all embedded trains)
+# in that case:
+#      exactly one of the following is 1: TARGET_OS_SIMULATOR, TARGET_OS_EMBEDDED (i.e. device)
+#      exactly one of the following is 1: TARGET_OS_IOS, TARGET_OS_TV, TARGET_OS_WATCH, TARGET_OS_BRIDGE
+#
+ifeq "$(ICU_FOR_APPLE_PLATFORMS)" "YES"
+       HOSTCC := $(shell xcrun --sdk macosx --find cc)
+       HOSTCXX := $(shell xcrun --sdk macosx --find c++)
+       HOSTSDKPATH := $(shell xcrun --sdk macosx.internal --show-sdk-path)
+       HOSTISYSROOT = -isysroot $(HOSTSDKPATH)
+       ifeq "$(SDKPATH)" "/"
+               ISYSROOT:= -isysroot $(HOSTSDKPATH)
+               CC := $(HOSTCC)
+               CXX := $(HOSTCXX)
+               NM := $(shell xcrun --sdk macosx --find nm)
+               STRIPCMD := $(shell xcrun --sdk macosx --find strip)
+               ifeq "$(ICU_TRAIN_CODE)" "2"
+                   export ICU_FOR_EMBEDDED_TRAINS:=YES
+               else
+                   export ICU_FOR_EMBEDDED_TRAINS:=NO
+               endif
+       else
+               ISYSROOT:= -isysroot $(SDKPATH)
+               CC := $(shell xcrun --sdk $(SDKPATH) --find cc)
+               CXX := $(shell xcrun --sdk $(SDKPATH) --find c++)
+               NM := $(shell xcrun --sdk $(SDKPATH) --find nm)
+               STRIPCMD := $(shell xcrun --sdk $(SDKPATH) --find strip)
+               EMBEDDEDTRAIN:=$(shell $(CXX) -E -dM -x c $(ISYSROOT) -include TargetConditionals.h /dev/null | fgrep define' 'TARGET_OS_IPHONE | cut -d' ' -f3)
+               ifeq "$(EMBEDDEDTRAIN)" "1"
+                       export ICU_FOR_EMBEDDED_TRAINS:=YES
+               else
+                   export ICU_FOR_EMBEDDED_TRAINS:=NO
+               endif
+       endif
+       SIMULATOROS:=$(shell $(CXX) -E -dM -x c $(ISYSROOT) -include TargetConditionals.h /dev/null | fgrep define' 'TARGET_OS_SIMULATOR | cut -d' ' -f3)
+       TVOS:=$(shell $(CXX) -E -dM -x c $(ISYSROOT) -include TargetConditionals.h /dev/null | fgrep define' 'TARGET_OS_TV | cut -d' ' -f3)
+       WATCHOS:=$(shell $(CXX) -E -dM -x c $(ISYSROOT) -include TargetConditionals.h /dev/null | fgrep define' 'TARGET_OS_WATCH | cut -d' ' -f3)
+       BRIDGEOS:=$(shell $(CXX) -E -dM -x c $(ISYSROOT) -include TargetConditionals.h /dev/null | fgrep define' 'TARGET_OS_BRIDGE | cut -d' ' -f3)
+       ifeq "$(ICU_FOR_EMBEDDED_TRAINS)" "YES"
+               ifeq "$(SIMULATOROS)" "1"
+                       BUILD_TYPE=SIMULATOR
+               else
+                       BUILD_TYPE=DEVICE
+               endif
+       else ifeq "$(RC_ProjectName)" "tzTools"
+               BUILD_TYPE=TOOL
+       else
+               BUILD_TYPE=
+       endif
+else
+       ifeq "$(LINUX)" "YES"
+               ISYSROOT:=
+               ifeq "$(shell (which clang >& /dev/null && which clang++ >& /dev/null && echo YES) || echo NO)" "YES"
+                       CC := clang
+                       CXX := clang++
+               else
+                       CC := gcc
+                       CXX := g++
+               endif
+       endif
+       export ICU_FOR_EMBEDDED_TRAINS:=NO
+       TVOS:=0
+       WATCHOS:=0
+       BRIDGEOS:=0
+       BUILD_TYPE=
+endif
+
+CROSS_BUILD:=$(ICU_FOR_EMBEDDED_TRAINS)
+CROSSHOST_OBJROOT=$(OBJROOT)/crossbuildhost
+
+$(info # ICU_FOR_APPLE_PLATFORMS=$(ICU_FOR_APPLE_PLATFORMS))
+$(info # HOSTCC=$(HOSTCC))
+$(info # HOSTCXX=$(HOSTCXX))
+$(info # HOSTISYSROOT=$(HOSTISYSROOT))
+$(info # CC=$(CC))
+$(info # CXX=$(CXX))
+$(info # ISYSROOT=$(ISYSROOT))
+$(info # ICU_FOR_EMBEDDED_TRAINS=$(ICU_FOR_EMBEDDED_TRAINS))
+$(info # CROSS_BUILD=$(CROSS_BUILD))
+$(info # BUILD_TYPE=$(BUILD_TYPE))
+
+# Disallow cross builds on Windows/Linux for now
+# (since those builds are not out-of-source as required for cross-builds)
+ifeq "$(CROSS_BUILD)" "YES"
+ifeq "$(WINDOWS)" "YES"
+$(error Cross-builds currently not allowed on Windows)
+endif
+ifeq "$(LINUX)" "YES"
+$(error Cross-builds currently not allowed on Linux)
+endif
+endif
+
+MAC_OS_X_VERSION_MIN_REQUIRED=101400
+OSX_HOST_VERSION_MIN_STRING=10.14
+
+ifndef IPHONEOS_DEPLOYMENT_TARGET
+       IOS_VERSION_TARGET_STRING=13.0
+else ifeq "$(IPHONEOS_DEPLOYMENT_TARGET)" ""
+       IOS_VERSION_TARGET_STRING=13.0
+else
+       IOS_VERSION_TARGET_STRING=$(IPHONEOS_DEPLOYMENT_TARGET)
+endif
+
+ifndef MACOSX_DEPLOYMENT_TARGET
+       OSX_VERSION_TARGET_STRING=10.15
+else ifeq "$(MACOSX_DEPLOYMENT_TARGET)" ""
+       OSX_VERSION_TARGET_STRING=10.15
+else
+       OSX_VERSION_TARGET_STRING=$(MACOSX_DEPLOYMENT_TARGET)
+endif
+
+ifndef WATCHOS_DEPLOYMENT_TARGET
+       WATCHOS_VERSION_TARGET_STRING=6.0
+else ifeq "$(WATCHOS_DEPLOYMENT_TARGET)" ""
+       WATCHOS_VERSION_TARGET_STRING=6.0
+else
+       WATCHOS_VERSION_TARGET_STRING=$(WATCHOS_DEPLOYMENT_TARGET)
+endif
+
+ifndef TVOS_DEPLOYMENT_TARGET
+       TVOS_VERSION_TARGET_STRING=13.0
+else ifeq "$(TVOS_DEPLOYMENT_TARGET)" ""
+       TVOS_VERSION_TARGET_STRING=13.0
+else
+       TVOS_VERSION_TARGET_STRING=$(TVOS_DEPLOYMENT_TARGET)
+endif
+
+ifndef BRIDGEOS_DEPLOYMENT_TARGET
+       BRIDGEOS_VERSION_TARGET_STRING=3.0
+else ifeq "$(BRIDGEOS_DEPLOYMENT_TARGET)" ""
+       BRIDGEOS_VERSION_TARGET_STRING=3.0
+else
+       BRIDGEOS_VERSION_TARGET_STRING=$(BRIDGEOS_DEPLOYMENT_TARGET)
+endif
+
+$(info # IOS_VERSION_TARGET_STRING=$(IOS_VERSION_TARGET_STRING))
+$(info # OSX_VERSION_TARGET_STRING=$(OSX_VERSION_TARGET_STRING))
+$(info # WATCHOS_VERSION_TARGET_STRING=$(WATCHOS_VERSION_TARGET_STRING))
+$(info # TVOS_VERSION_TARGET_STRING=$(TVOS_VERSION_TARGET_STRING))
+$(info # BRIDGEOS_VERSION_TARGET_STRING=$(BRIDGEOS_VERSION_TARGET_STRING))
+
+ifeq "$(BUILD_TYPE)" "DEVICE"
+       ifeq "$(WATCHOS)" "1"
+               ICU_TARGET_VERSION := -mwatchos-version-min=$(WATCHOS_VERSION_TARGET_STRING)
+       else ifeq "$(TVOS)" "1"
+               ICU_TARGET_VERSION := -mtvos-version-min=$(TVOS_VERSION_TARGET_STRING)
+       else ifeq "$(BRIDGEOS)" "1"
+               ICU_TARGET_VERSION := -mbridgeos-version-min=$(BRIDGEOS_VERSION_TARGET_STRING)
+       else
+               ICU_TARGET_VERSION := -miphoneos-version-min=$(IOS_VERSION_TARGET_STRING)
+       endif
+else ifeq "$(BUILD_TYPE)" "SIMULATOR"
+       ifeq "$(WATCHOS)" "1"
+               ICU_TARGET_VERSION := -mwatchos-simulator-version-min=$(WATCHOS_VERSION_TARGET_STRING)
+       else ifeq "$(TVOS)" "1"
+               ICU_TARGET_VERSION := -mtvos-simulator-version-min=$(TVOS_VERSION_TARGET_STRING)
+       else
+               ICU_TARGET_VERSION := -mios-simulator-version-min=$(IOS_VERSION_TARGET_STRING)
+       endif
+else
+       ICU_TARGET_VERSION :=
+endif
+$(info # ICU_TARGET_VERSION=$(ICU_TARGET_VERSION))
+
+
+DISABLE_DRAFT:=$(ICU_FOR_EMBEDDED_TRAINS)
+ifeq "$(DISABLE_DRAFT)" "YES"
+       DRAFT_FLAG=--disable-draft
+else
+       DRAFT_FLAG=
+endif
+
+# For some reason, under cygwin, bash uname is not found, and
+# sh uname does not produce a result with -p or -m. So we just
+# hardcode here.
+ifeq "$(WINDOWS)" "YES"
+       UNAME_PROCESSOR:=i386
+else
+       UNAME_PROCESSOR:=$(shell uname -p)
+endif
+
+ifneq "$(RC_ARCHS)" ""
+       INSTALLHDRS_ARCH=-arch $(shell echo $(RC_ARCHS) | cut -d' ' -f1)
+else
+       INSTALLHDRS_ARCH=
+endif
+$(info # INSTALLHDRS_ARCH=$(INSTALLHDRS_ARCH))
+$(info # buildhost=$(UNAME_PROCESSOR))
+
+
+# FORCEENDIAN below is to override silly configure behavior in which if
+# __APPLE_CC__ is defined and archs are in { ppc, ppc64, i386, x86_64 }
+# then it assumes a universal build (ac_cv_c_bigendian=universal) with
+# data file initially built big-endian.
+#
+# darwin releases
+# darwin 17.0.0 2017-Sep: macOS 10.13, iOS 11
+# darwin 17.5.0 2018-Mar: macOS 10.13.4
+# darwin 17.6.0 2018-Jun: macOS 10.13.5
+# darwin 17.7.0 2018-Jul: macOS 10.13.6, iOS 11.4.1
+# darwin 18.0.0 2018-Sep: macOS 10.14, iOS 12
+# darwin 18.2.0 2018-Oct: macOS 10.14.1, iOS 12.1
+# darwin 19.0.0 2019-fall: macOS 10.15, iOS 13
+#
+ifeq "$(CROSS_BUILD)" "YES"
+       RC_ARCHS_FIRST=$(shell echo $(RC_ARCHS) | cut -d' ' -f1)
+       TARGET_SPEC=$(RC_ARCHS_FIRST)-apple-darwin19.0.0
+       ENV_CONFIGURE_ARCHS=-arch $(RC_ARCHS_FIRST)
+       ICUPKGTOOLIBS="$(CROSSHOST_OBJROOT)/lib:$(CROSSHOST_OBJROOT)/stubdata"
+       ICUPKGTOOL=$(CROSSHOST_OBJROOT)/bin/icupkg
+       ifeq "$(filter-out i386 x86_64,$(RC_ARCHS))" ""
+               FORCEENDIAN= ac_cv_c_bigendian=no
+       else
+               FORCEENDIAN=
+       endif
+else ifeq "$(LINUX)" "YES"
+       TARGET_SPEC=$(UNAME_PROCESSOR)-unknown-linux-gnu
+       ENV_CONFIGURE_ARCHS=
+       ICUPKGTOOLIBS="$(OBJROOT_CURRENT)/lib:$(OBJROOT_CURRENT)/stubdata"
+       ICUPKGTOOL=$(OBJROOT_CURRENT)/bin/icupkg
+       FORCEENDIAN=
+else
+       TARGET_SPEC=$(UNAME_PROCESSOR)-apple-darwin19.0.0
+       ENV_CONFIGURE_ARCHS=
+       ICUPKGTOOLIBS="$(OBJROOT_CURRENT)/lib:$(OBJROOT_CURRENT)/stubdata"
+       ICUPKGTOOL=$(OBJROOT_CURRENT)/bin/icupkg
+       FORCEENDIAN=
+endif
+$(info # TARGET_SPEC=$(TARGET_SPEC))
+$(info # ENV_CONFIGURE_ARCHS=$(ENV_CONFIGURE_ARCHS))
+
+ICU_TARGET_VERSION_FOR_TZ_EXTRA :=
+ifeq "$(BUILD_TYPE)" "SIMULATOR"
+       ICU_TARGET_VERSION_FOR_TZ_EXTRA := -mmacosx-version-min=$(OSX_HOST_VERSION_MIN_STRING)
+endif
+
+ifeq "$(BUILD_TYPE)" "DEVICE"
+       THUMB_FLAG = -mthumb
+else
+       THUMB_FLAG =
+endif
+
+# even for a crossbuild host build, we want to use the target's latest tzdata as pointed to by latest_tzdata.tar.gz;
+# first try RC_EMBEDDEDPROJECT_DIR (<rdar://problem/28141177>), else SDKPATH.
+ifdef RC_EMBEDDEDPROJECT_DIR
+       ifeq "$(shell test -L $(RC_EMBEDDEDPROJECT_DIR)/TimeZoneData/usr/local/share/tz/latest_tzdata.tar.gz && echo YES )" "YES"
+               export TZDATA:=$(RC_EMBEDDEDPROJECT_DIR)/TimeZoneData/usr/local/share/tz/$(shell readlink $(RC_EMBEDDEDPROJECT_DIR)/TimeZoneData/usr/local/share/tz/latest_tzdata.tar.gz)
+       endif
+       ifeq "$(shell test -d $(RC_EMBEDDEDPROJECT_DIR)/TimeZoneData/usr/local/share/tz/icudata && echo YES )" "YES"
+               export TZAUXFILESDIR:=$(RC_EMBEDDEDPROJECT_DIR)/TimeZoneData/usr/local/share/tz/icudata
+       endif
+endif
+ifndef TZDATA
+       ifeq "$(shell test -L $(SDKPATH)/usr/local/share/tz/latest_tzdata.tar.gz && echo YES )" "YES"
+               export TZDATA:=$(SDKPATH)/usr/local/share/tz/$(shell readlink $(SDKPATH)/usr/local/share/tz/latest_tzdata.tar.gz)
+       endif
+       ifeq "$(shell test -d $(SDKPATH)/usr/local/share/tz/icudata && echo YES )" "YES"
+               export TZAUXFILESDIR:=$(SDKPATH)/usr/local/share/tz/icudata
+       endif
 endif
+$(info # RC_EMBEDDEDPROJECT_DIR=$(RC_EMBEDDEDPROJECT_DIR))
+$(info # TZDATA=$(TZDATA))
+$(info # TZAUXFILESDIR=$(TZAUXFILESDIR))
+ifndef TZAUXFILESDIR
+       TZAUXFILESDIR:=.
+endif
+
+APPLE_INTERNAL_DIR=/AppleInternal
+DSYMTOOL := /usr/bin/dsymutil
+DSYMSUFFIX := .dSYM
 
 #################################
 # Headers
 #################################
 
 # For installhdrs. Not every compiled module has an associated header. Normally,
-# ICU installs headers as a sub-targe of the install target. But since we only want
+# ICU installs headers as a sub-target of the install target. But since we only want
 # certain libraries to install (and since we link all of our own .o modules), we need
 # invoke the headers targets ourselves. This may be problematic because there isn't a
 # good way to dist-clean afterwards...we need to do explicit dist-cleans, especially if
 # install the extra libraries.
 
 EXTRA_HDRS =
-# EXTRA_HDRS = ./extra/ustdio/ ./layout/ 
-ifeq "$(MINIMAL)" "YES"
+# EXTRA_HDRS = ./extra/ustdio/ ./layout/
+ifeq "$(ICU_FOR_EMBEDDED_TRAINS)" "YES"
     HDR_MAKE_SUBDIR = ./common/ ./i18n/ $(EXTRA_HDRS)
 else ifeq "$(WINDOWS)" "YES"
     HDR_MAKE_SUBDIR = ./common/ ./i18n/ $(EXTRA_HDRS)
@@ -85,19 +596,20 @@ else
     HDR_MAKE_SUBDIR = ./common/ ./i18n/ ./io/ $(EXTRA_HDRS)
 endif
 ifeq "$(WINDOWS)" "YES"
-       HDR_PREFIX=$(APPLE_INTERNAL_DIR)
        PRIVATE_HDR_PREFIX=$(APPLE_INTERNAL_DIR)
-else
+else ifeq "$(ICU_FOR_EMBEDDED_TRAINS)" "YES"
        HDR_PREFIX=/usr
        PRIVATE_HDR_PREFIX=/usr/local
+else
+       PRIVATE_HDR_PREFIX=/usr/local
 endif
 
 #################################
 # Install
 #################################
 
-# For install. We currently don't install EXTRA_LIBS. We also don't install the data 
-# directly into the ICU library. It is now installed at /usr/share/icu/*.dat. Thus we 
+# For install. We currently don't install EXTRA_LIBS. We also don't install the data
+# directly into the ICU library. It is now installed at /usr/share/icu/*.dat. Thus we
 # don't use DATA_OBJ anymore. This could change if we decide to move the data back into
 # the icucore monolithic library.
 
@@ -106,14 +618,10 @@ COMMON_OBJ = ./common/*.o
 I18N_OBJ = ./i18n/*.o
 IO_OBJ = ./io/*.o
 STUB_DATA_OBJ = ./stubdata/*.o
-#COMMON_SRC = $(OBJROOT)/common/*.c
-#I18N_SRC = $(OBJROOT)/i18n/*.c
-#IO_SRC = $(OBJROOT)/io/*.c
-#STUB_DATA_SRC = $(OBJROOT)/stubdata/*.c
 EXTRA_LIBS =
 #EXTRA_LIBS =./extra/ ./layout/ ./tools/ctestfw/ ./tools/toolutil/
 #DATA_OBJ = ./data/out/build/*.o
-ifeq "$(MINIMAL)" "YES"
+ifeq "$(ICU_FOR_EMBEDDED_TRAINS)" "YES"
     DYLIB_OBJS=$(COMMON_OBJ) $(I18N_OBJ) $(STUB_DATA_OBJ)
 else ifeq "$(WINDOWS)" "YES"
     DYLIB_OBJS=$(COMMON_OBJ) ./common/common.res $(I18N_OBJ) $(STUB_DATA_OBJ)
@@ -121,64 +629,108 @@ else
     DYLIB_OBJS=$(COMMON_OBJ) $(I18N_OBJ) $(IO_OBJ) $(STUB_DATA_OBJ)
 endif
 
+#################################
+# Sources
+#################################
+
+# For installsrc (B&I)
+# Note that installsrc is run on the system from which ICU is submitted, which
+# may be a different environment than the one for a which a build is targeted.
+
+INSTALLSRC_VARFILES=./ICU_embedded.order \
+       ./minimalapis.txt ./minimalapisTest.c ./minimalpatchconfig.txt ./windowspatchconfig.txt ./patchconfig.txt ./crosshostpatchconfig.txt \
+       BuildICUForAAS_script.bat EXPORT.APPLE
+
 #################################
 # Cleaning
 #################################
 
 #We need to clean after installing.
 
-EXTRA_CLEAN = 
+EXTRA_CLEAN =
 
 # Some directories aren't cleaned recursively. Clean them manually...
 MANUAL_CLEAN_TOOLS = ./tools/dumpce
 MANUAL_CLEAN_EXTRA = ./extra/scrptrun ./samples/layout ./extra/ustdio ./extra
-MANUAL_CLEAN_TEST = ./test/collperf ./test/iotest ./test/letest ./test/thaitest ./test/threadtest ./test/testmap ./test 
+MANUAL_CLEAN_TEST = ./test/collperf ./test/iotest ./test/letest ./test/thaitest ./test/threadtest ./test/testmap ./test
 MANUAL_CLEAN_SAMPLE = ./samples/layout ./samples
 
-CLEAN_SUBDIR = ./stubdata ./common ./i18n ./io ./layout ./layoutex ./data ./tools ./$(MANUAL_CLEAN_TOOLS) $(MANUAL_CLEAN_EXTRA) $(MANUAL_CLEAN_TEST) $(MANUAL_CLEAN_SAMPLE) 
+CLEAN_SUBDIR = ./stubdata ./common ./i18n ./io ./layout ./layoutex ./data ./tools ./$(MANUAL_CLEAN_TOOLS) $(MANUAL_CLEAN_EXTRA) $(MANUAL_CLEAN_TEST) $(MANUAL_CLEAN_SAMPLE)
 
 #################################
 # Config flags
 #################################
 
-ifeq "$(MINIMAL)" "YES"
-       CONFIG_FLAGS = --disable-renaming --disable-extras --disable-icuio --disable-layout \
-               --disable-samples --with-data-packaging=archive --prefix=$(PRIVATE_HDR_PREFIX) \
-               $(DRAFT_FLAG) --srcdir=$(SRCROOT)/icuSources
-else ifeq "$(WINDOWS)" "YES"
-       CONFIG_FLAGS = --disable-extras --disable-icuio --disable-layout \
-               --disable-samples --with-data-packaging=library --prefix=$(PRIVATE_HDR_PREFIX) \
+ifeq "$(WINDOWS)" "YES"
+       ifeq "$(ARCH64)" "YES"
+               CONFIG_FLAGS = --disable-renaming --disable-extras --disable-layout --disable-samples --disable-icuio \
+                       --with-data-packaging=library --prefix=$(PRIVATE_HDR_PREFIX) --with-library-bits=64 \
+                       $(DRAFT_FLAG)
+       else
+               CONFIG_FLAGS = --disable-renaming --disable-extras --disable-layout --disable-samples --disable-icuio \
+                       --with-data-packaging=library --prefix=$(PRIVATE_HDR_PREFIX) --with-library-bits=32 \
+                       $(DRAFT_FLAG)
+       endif
+else ifeq "$(LINUX)" "YES"
+       ifeq "$(ARCH64)" "YES"
+               CONFIG_FLAGS = --disable-renaming --disable-extras --disable-layout --disable-samples \
+                       --with-data-packaging=archive --prefix=$(PRIVATE_HDR_PREFIX) --with-library-bits=64 \
+                       $(DRAFT_FLAG)
+       else
+               CONFIG_FLAGS = --disable-renaming --disable-extras --disable-layout --disable-samples \
+                       --with-data-packaging=archive --prefix=$(PRIVATE_HDR_PREFIX) --with-library-bits=32 \
+                       $(DRAFT_FLAG)
+       endif
+else ifeq "$(ICU_FOR_EMBEDDED_TRAINS)" "YES"
+       CONFIG_FLAGS = --disable-renaming --disable-extras --disable-layout --disable-samples \
+               --with-data-packaging=archive --prefix=$(PRIVATE_HDR_PREFIX) \
                $(DRAFT_FLAG)
 else
-       CONFIG_FLAGS = --disable-renaming --disable-extras --disable-layout \
-               --disable-samples --with-data-packaging=archive --prefix=$(PRIVATE_HDR_PREFIX) \
-               $(DRAFT_FLAG) --srcdir=$(SRCROOT)/icuSources
+       CONFIG_FLAGS = --disable-renaming --disable-extras --disable-layout --disable-samples \
+               --with-data-packaging=archive --prefix=$(PRIVATE_HDR_PREFIX) \
+               $(DRAFT_FLAG)
 endif
 
 #################################
 # Install paths
 #################################
 
-# This may or may not be an appropriate name for the icu dylib. This naming scheme is 
-# an attempt to follow the icu convention in naming the dylib and then having symbolic 
-# links of easier to remember library names point it it. *UPDATE* the version and 
+# This may or may not be an appropriate name for the icu dylib. This naming scheme is
+# an attempt to follow the icu convention in naming the dylib and then having symbolic
+# links of easier to remember library names point it it. *UPDATE* the version and
 # sub-version variables as needed. The Core version should be 'A' until the core
 # version changes it's API...that is a new version isn't backwards compatible.
 # The ICU version/subversion should reflect the actual ICU version.
 
 LIB_NAME = icucore
-ICU_VERS = 36
-ICU_SUBVERS = 0
+ICU_VERS = 64
+ICU_SUBVERS = 2
 CORE_VERS = A
 
 ifeq "$(WINDOWS)" "YES"
        DYLIB_SUFF = dll
-       libdir = /AppleInternal/bin/
-       winlibdir = /AppleInternal/lib/
+       ifeq "$(ARCH64)" "YES"
+               winprogdir = /Program\ Files/Common\ Files/Apple/Apple\ Application\ Support/
+               winintlibdir = /AppleInternal/lib64/
+       else
+               winprogdir = /Program\ Files\ \(x86\)/Common\ Files/Apple/Apple\ Application\ Support/
+               winintlibdir = /AppleInternal/lib32/
+       endif
+       libdir =
+else ifeq "$(LINUX)" "YES"
+       DYLIB_SUFF = so
+       ifeq "$(ARCH64)" "YES"
+               libdir = /usr/local/lib/
+       else
+               libdir = /usr/local/lib32/
+       endif
+       winprogdir =
+       winintlibdir =
 else
        DYLIB_SUFF = dylib
        libdir = /usr/lib/
-       winlibdir =
+       winprogdir =
+       winintlibdir =
 endif
 
 DYLIB = lib$(LIB_NAME).$(DYLIB_SUFF)
@@ -188,6 +740,10 @@ ifeq "$(WINDOWS)" "YES"
        INSTALLED_DYLIB = $(LIB_NAME).$(DYLIB_SUFF)
        INSTALLED_DYLIB_DEBUG = $(LIB_NAME)_debug.$(DYLIB_SUFF)
        INSTALLED_DYLIB_PROFILE = $(LIB_NAME)_profile.$(DYLIB_SUFF)
+else ifeq "$(LINUX)" "YES"
+       INSTALLED_DYLIB = lib$(LIB_NAME).$(DYLIB_SUFF)
+       INSTALLED_DYLIB_DEBUG = lib$(LIB_NAME)_debug.$(DYLIB_SUFF)
+       INSTALLED_DYLIB_PROFILE = lib$(LIB_NAME)_profile.$(DYLIB_SUFF)
 else
        INSTALLED_DYLIB = lib$(LIB_NAME).$(CORE_VERS).$(DYLIB_SUFF)
        INSTALLED_DYLIB_DEBUG = lib$(LIB_NAME).$(CORE_VERS)_debug.$(DYLIB_SUFF)
@@ -205,12 +761,115 @@ DYLIB_profile = DYLIB_PROFILE
 # Data files
 #################################
 
-datadir=/usr/share/icu/
 OPEN_SOURCE_VERSIONS_DIR=/usr/local/OpenSourceVersions/
 OPEN_SOURCE_LICENSES_DIR=/usr/local/OpenSourceLicenses/
-ICU_DATA_DIR= data/out
+
 B_DATA_FILE=icudt$(ICU_VERS)b.dat
 L_DATA_FILE=icudt$(ICU_VERS)l.dat
+DATA_BUILD_SUBDIR= data/out
+ifeq "$(LINUX)" "YES"
+DATA_INSTALL_DIR=/usr/local/share/icu/
+else
+DATA_INSTALL_DIR=/usr/share/icu/
+endif
+
+# DATA_LOOKUP_DIR is what the target ICU_DATA_DIR gets set to in CFLAGS, CXXFLAGS;
+# DATA_LOOKUP_DIR_BUILDHOST is what any crossbuild host ICU_DATA_DIR gets set to.
+# Formerly we had DATA_LOOKUP_DIR=/var/db/icu/ for embedded non-simulator builds
+# and DATA_LOOKUP_DIR=/usr/share/icu/ for everything else. Now all systems look
+# in the same place for the main data file:
+DATA_LOOKUP_DIR=$(DATA_INSTALL_DIR)
+DATA_LOOKUP_DIR_BUILDHOST=$(DATA_INSTALL_DIR)
+
+# Timezone data file(s)
+# ICU will look for /var/db/timezone/icutz/icutz44l.dat
+# If directory or file is not present, the timesone data in
+# current data file e.g. /usr/share/icu/icudt56l.dat will be used.
+# Currently we are not conditionalizing the definition of
+# TZDATA_LOOKUP_DIR as in
+#      ifeq "$(BUILD_TYPE)" "DEVICE"
+#              TZDATA_LOOKUP_DIR = /var/db/timezone/icutz
+#      else
+#      ...
+# since the code stats the path for TZDATA_LOOKUP_DIR and does
+# not try to use it if it does not exist. We could define it
+# as TZDATA_LOOKUP_DIR = /usr/share/icutz when not needed...
+# TZDATA_LOOKUP_DIR is passed to compiler as U_TIMEZONE_FILES_DIR
+# TZDATA_PACKAGE is passed to compiler as U_TIMEZONE_PACKAGE
+TZDATA_LOOKUP_DIR = /var/db/timezone/icutz
+TZDATA_PACKAGE = icutz44l
+TZDATA_FORMAT_STRING = "44l"
+TZDATA_FORMAT_FILE = icutzformat.txt
+
+
+# Name of runtime environment variable to get the prefix path for DATA_LOOKUP_DIR
+# Currently we are only using this for LINUX, should also use for iOS simulator
+ifeq "$(LINUX)" "YES"
+       DATA_DIR_PREFIX_ENV_VAR=APPLE_FRAMEWORKS_ROOT
+else
+       DATA_DIR_PREFIX_ENV_VAR=
+endif
+
+#################################
+# Tools
+#################################
+
+localtooldir=/usr/local/bin/
+locallibdir=/usr/local/lib/
+
+INFOTOOL = icuinfo
+INFOTOOL_OBJS = ./tools/icuinfo/icuinfo.o ./tools/toolutil/udbgutil.o ./tools/toolutil/uoptions.o
+
+ICUZDUMPTOOL = icuzdump
+ifeq "$(ICU_FOR_EMBEDDED_TRAINS)" "YES"
+    ICUZDUMPTOOL_OBJS = ./tools/tzcode/icuzdump.o $(IO_OBJ)
+else
+    ICUZDUMPTOOL_OBJS = ./tools/tzcode/icuzdump.o
+endif
+
+TOOLSLIB_NAME = icutu
+TOOLS_DYLIB = libicutu.$(DYLIB_SUFF)
+TOOLS_DYLIB_OBJS = ./tools/toolutil/*.o
+
+# The following modified version enables the tz toools to be used on systems with ICU 55 or later.
+# It is used with the toolchain tools below.
+TOOLSLIB_NAME_FORTOOLS = icutux
+TOOLS_DYLIB_FORTOOLS = libicutux.$(DYLIB_SUFF)
+TOOLS_DYLIB_OBJS_FORTOOLS = ./tools/toolutil/collationinfo.o ./tools/toolutil/filestrm.o \
+./tools/toolutil/package.o ./tools/toolutil/pkg_icu.o ./tools/toolutil/pkgitems.o \
+./tools/toolutil/swapimpl.o ./tools/toolutil/toolutil.o ./tools/toolutil/ucbuf.o \
+./tools/toolutil/unewdata.o ./tools/toolutil/uoptions.o ./tools/toolutil/uparse.o \
+$(COMMON_OBJ) $(STUB_DATA_OBJ)
+
+ZICTOOL = icuzic
+ZICTOOL_OBJS = ./tools/tzcode/zic.o ./tools/tzcode/localtime.o ./tools/tzcode/asctime.o ./tools/tzcode/scheck.o ./tools/tzcode/ialloc.o
+
+RESTOOL = icugenrb
+RESTOOL_OBJS = ./tools/genrb/errmsg.o ./tools/genrb/genrb.o ./tools/genrb/parse.o ./tools/genrb/read.o ./tools/genrb/reslist.o ./tools/genrb/ustr.o \
+                               ./tools/genrb/rbutil.o ./tools/genrb/wrtjava.o ./tools/genrb/rle.o ./tools/genrb/wrtxml.o ./tools/genrb/prscmnts.o ./tools/genrb/filterrb.o
+
+# note there is also a symbol ICUPKGTOOL which refers to the one used
+# internally which is linked against the separate uc and i18n libs.
+PKGTOOL = icupkg
+PKGTOOL_OBJS = ./tools/icupkg/icupkg.o
+
+TZ2ICUTOOL = tz2icu
+TZ2ICUTOOL_OBJS = ./tools/tzcode/tz2icu.o
+
+GENBRKTOOL = icugenbrk
+GENBRKTOOL_OBJS = ./tools/genbrk/genbrk.o
+
+#################################
+# Ancillary files
+# e.g. supplementalData.xml, per <rdar://problem/13426014>
+# These are like internal headers in that they are only installed for
+# (other) projects to build against, not needed at runtime.
+# Install during installhdrs? That does not seem to work for CLDRFILESDIR
+#################################
+
+CLDRFILESDIR=/usr/local/share/cldr
+
+EMOJI_DATA_DIR=/usr/local/share/emojiData
 
 #################################
 # Environment variables
@@ -222,60 +881,202 @@ L_DATA_FILE=icudt$(ICU_VERS)l.dat
 # into CFLAGS (and CXXFLAGS). This controls a lot of the external variables so we don't
 # need to directly modify the ICU files (like for CFLAGS, etc).
 
-LIBOVERRIDES=LIBICUDT="-L$(OBJROOT) -l$(LIB_NAME)" \
-       LIBICUUC="-L$(OBJROOT) -l$(LIB_NAME)" \
-       LIBICUI18N="-L$(OBJROOT) -l$(LIB_NAME)"
+LIBOVERRIDES=LIBICUDT="-L$(OBJROOT_CURRENT) -l$(LIB_NAME)" \
+       LIBICUUC="-L$(OBJROOT_CURRENT) -l$(LIB_NAME)" \
+       LIBICUI18N="-L$(OBJROOT_CURRENT) -l$(LIB_NAME)"
+
+CFLAGS_SANITIZER :=
+CXXFLAGS_SANITIZER :=
+LDFLAGS_SANITIZER :=
+ifeq ($(RC_ENABLE_ADDRESS_SANITIZATION),1)
+  $(info Enabling Address Sanitizer)
+  ASAN_FLAGS:=-fsanitize=address
+  CFLAGS_SANITIZER += $(ASAN_FLAGS)
+  CXXFLAGS_SANITIZER += $(ASAN_FLAGS)
+  LDFLAGS_SANITIZER += $(ASAN_FLAGS)
+endif
+
+ifeq ($(RC_ENABLE_UNDEFINED_BEHAVIOR_SANITIZATION),1)
+  $(info Enabling Undefined Behaviour Sanitizer)
+  UBSAN_FLAGS:=-fsanitize=undefined
+  CFLAGS_SANITIZER += $(UBSAN_FLAGS)
+  CXXFLAGS_SANITIZER += $(UBSAN_FLAGS)
+  LDFLAGS_SANITIZER += $(UBSAN_FLAGS)
+endif
+
+ifeq ($(RC_ENABLE_THREAD_SANITIZATION),1)
+  $(info Enabling Thread Sanitizer)
+  TSAN_FLAGS:=-fsanitize=thread
+  CFLAGS_SANITIZER += $(TSAN_FLAGS)
+  CXXFLAGS_SANITIZER += $(TSAN_FLAGS)
+  LDFLAGS_SANITIZER += $(TSAN_FLAGS)
+endif
+LDFLAGS += $(LDFLAGS_SANITIZER)
 
+# For normal Windows builds set the ENV= options here; for debug Windows builds set the ENV_DEBUG=
+# options here and also the update the LINK.EXE lines in the TARGETS section below.
 ifeq "$(WINDOWS)" "YES"
-       ifeq "$(ICU_BUILD)" "0"
-               CPPOPTIONS = 
+       ifeq "$(ARCH64)" "YES"
+               ENV= CFLAGS="/utf-8 /O2 /Ob2 /MD /GF /GS /Zi /nologo /D_CRT_SECURE_CPP_OVERLOAD_STANDARD_NAMES" \
+                       CXXFLAGS="/utf-8 /O2 /Ob2 /MD /GF /GS /Zi /nologo /D_CRT_SECURE_CPP_OVERLOAD_STANDARD_NAMES /EHsc /Zc:wchar_t /DU_SHOW_CPLUSPLUS_API=1" \
+                       LDFLAGS="/NXCOMPAT /DYNAMICBASE /DEBUG /OPT:REF"
        else
-               CPPOPTIONS = CPPFLAGS="-DU_ICU_VERSION_BUILDLEVEL_NUM=$(ICU_BUILD)"
+               ENV= CFLAGS="/utf-8 /O2 /Ob2 /MD /GF /GS /Zi /nologo /D_CRT_SECURE_CPP_OVERLOAD_STANDARD_NAMES" \
+                       CXXFLAGS="/utf-8 /O2 /Ob2 /MD /GF /GS /Zi /nologo /D_CRT_SECURE_CPP_OVERLOAD_STANDARD_NAMES /EHsc /Zc:wchar_t /DU_SHOW_CPLUSPLUS_API=1" \
+                       LDFLAGS="/NXCOMPAT /SAFESEH /DYNAMICBASE /DEBUG /OPT:REF"
        endif
-       ENV= CFLAGS="/O2 /Ob2 /MD /GF" CXXFLAGS="/O2 /Ob2 /MD /GF" LDFLAGS="/DEBUG"
-       ENV_CONFIGURE= $(CPPOPTIONS) CFLAGS="/O2 /Ob2 /MD /GF" CXXFLAGS="/O2 /Ob2 /MD /GF" LDFLAGS="/DEBUG"
-       ENV_DEBUG= CFLAGS="/O2 /Ob2 /MDd /GF /Zi" CXXFLAGS="/O2 /Ob2 /MDd /GF /Zi" LDFLAGS="/DEBUG"
+       ENV_CONFIGURE= CPPFLAGS="-DU_DISABLE_RENAMING=1 $(DEFINE_BUILD_LEVEL)" \
+               CFLAGS="/utf-8 /O2 /Ob2 /MD /GF /GS /nologo /D_CRT_SECURE_CPP_OVERLOAD_STANDARD_NAMES" \
+               CXXFLAGS="/utf-8 /O2 /Ob2 /MD /GF /GS /nologo /D_CRT_SECURE_CPP_OVERLOAD_STANDARD_NAMES /EHsc /Zc:wchar_t /DU_SHOW_CPLUSPLUS_API=1"
+       ENV_DEBUG= CFLAGS="/utf-8 /O2 /Ob2 /MDd /GF /GS /Zi /D_CRT_SECURE_CPP_OVERLOAD_STANDARD_NAMES" \
+               CXXFLAGS="/utf-8 /O2 /Ob2 /MDd /GF /GS /Zi /D_CRT_SECURE_CPP_OVERLOAD_STANDARD_NAMES /EHsc /DU_SHOW_CPLUSPLUS_API=1" \
+               LDFLAGS="/DEBUG /DYNAMICBASE"
        ENV_PROFILE=
-else
-       ifeq "$(ICU_BUILD)" "0"
-               CPPOPTIONS = CPPFLAGS="-DSTD_INSPIRED -DMAC_OS_X_VERSION_MIN_REQUIRED=1040"
+else ifeq "$(LINUX)" "YES"
+       ifeq "$(ARCH64)" "YES"
+               ENV_CONFIGURE= APPLE_INTERNAL_DIR="$(APPLE_INTERNAL_DIR)" \
+                       LANG="en_US.utf8" \
+                       CPPFLAGS="-DU_DISABLE_RENAMING=1 $(DEFINE_BUILD_LEVEL)"  \
+                       CC="$(CC)" \
+                       CXX="$(CXX)" \
+                       CFLAGS="-DU_SHOW_CPLUSPLUS_API=1 -DU_SHOW_INTERNAL_API=1 -DICU_DATA_DIR=\"\\\"$(DATA_LOOKUP_DIR)\\\"\" -DICU_DATA_DIR_PREFIX_ENV_VAR=\"\\\"$(DATA_DIR_PREFIX_ENV_VAR)\\\"\" -m64 -g -Os -fno-exceptions -fvisibility=hidden" \
+                       CXXFLAGS="-std=c++11 -DU_SHOW_CPLUSPLUS_API=1 -DU_SHOW_INTERNAL_API=1 -DICU_DATA_DIR=\"\\\"$(DATA_LOOKUP_DIR)\\\"\" -DICU_DATA_DIR_PREFIX_ENV_VAR=\"\\\"$(DATA_DIR_PREFIX_ENV_VAR)\\\"\" -m64 -g -Os -fno-exceptions -fvisibility=hidden -fvisibility-inlines-hidden" \
+                       TZDATA="$(TZDATA)" \
+                       DYLD_LIBRARY_PATH="$(DSTROOT)/usr/local/lib"
+
+               ENV= APPLE_INTERNAL_DIR="$(APPLE_INTERNAL_DIR)" \
+                       LANG="en_US.utf8" \
+                       CC="$(CC)" \
+                       CXX="$(CXX)" \
+                       CFLAGS="-DU_SHOW_CPLUSPLUS_API=1 -DU_SHOW_INTERNAL_API=1 -DICU_DATA_DIR=\"\\\"$(DATA_LOOKUP_DIR)\\\"\" -DICU_DATA_DIR_PREFIX_ENV_VAR=\"\\\"$(DATA_DIR_PREFIX_ENV_VAR)\\\"\" -m64 -g -Os -fno-exceptions -fvisibility=hidden" \
+                       CXXFLAGS="-std=c++11 -DU_SHOW_CPLUSPLUS_API=1 -DU_SHOW_INTERNAL_API=1 -DICU_DATA_DIR=\"\\\"$(DATA_LOOKUP_DIR)\\\"\" -DICU_DATA_DIR_PREFIX_ENV_VAR=\"\\\"$(DATA_DIR_PREFIX_ENV_VAR)\\\"\" -m64 -g -Os -fno-exceptions -fvisibility=hidden -fvisibility-inlines-hidden" \
+                       TZDATA="$(TZDATA)" \
+                       DYLD_LIBRARY_PATH="$(DSTROOT)/usr/local/lib"
+
+               ENV_DEBUG= APPLE_INTERNAL_DIR="$(APPLE_INTERNAL_DIR)" \
+                       LANG="en_US.utf8" \
+                       CC="$(CC)" \
+                       CXX="$(CXX)" \
+                       CFLAGS="-DU_SHOW_CPLUSPLUS_API=1 -DU_SHOW_INTERNAL_API=1 -DICU_DATA_DIR=\"\\\"$(DATA_LOOKUP_DIR)\\\"\" -DICU_DATA_DIR_PREFIX_ENV_VAR=\"\\\"$(DATA_DIR_PREFIX_ENV_VAR)\\\"\" -m64 -O0 -gfull -fno-exceptions -fvisibility=hidden" \
+                       CXXFLAGS="-std=c++11 -DU_SHOW_CPLUSPLUS_API=1 -DU_SHOW_INTERNAL_API=1 -DICU_DATA_DIR=\"\\\"$(DATA_LOOKUP_DIR)\\\"\" -DICU_DATA_DIR_PREFIX_ENV_VAR=\"\\\"$(DATA_DIR_PREFIX_ENV_VAR)\\\"\" -m64 -O0 -gfull -fno-exceptions -fvisibility=hidden -fvisibility-inlines-hidden" \
+                       TZDATA="$(TZDATA)" \
+                       DYLD_LIBRARY_PATH="$(DSTROOT)/usr/local/lib"
+
+               ENV_PROFILE= APPLE_INTERNAL_DIR="$(APPLE_INTERNAL_DIR)" \
+                       LANG="en_US.utf8" \
+                       CC="$(CC)" \
+                       CXX="$(CXX)" \
+                       CFLAGS="-DU_SHOW_CPLUSPLUS_API=1 -DU_SHOW_INTERNAL_API=1 -DICU_DATA_DIR=\"\\\"$(DATA_LOOKUP_DIR)\\\"\" -DICU_DATA_DIR_PREFIX_ENV_VAR=\"\\\"$(DATA_DIR_PREFIX_ENV_VAR)\\\"\" -m64 -g -Os -pg -fno-exceptions -fvisibility=hidden" \
+                       CXXFLAGS="-std=c++11 -DU_SHOW_CPLUSPLUS_API=1 -DU_SHOW_INTERNAL_API=1 -DICU_DATA_DIR=\"\\\"$(DATA_LOOKUP_DIR)\\\"\" -DICU_DATA_DIR_PREFIX_ENV_VAR=\"\\\"$(DATA_DIR_PREFIX_ENV_VAR)\\\"\" -m64 -g -Os -pg -fno-exceptions -fvisibility=hidden -fvisibility-inlines-hidden" \
+                       TZDATA="$(TZDATA)" \
+                       DYLD_LIBRARY_PATH="$(DSTROOT)/usr/local/lib"
        else
-               CPPOPTIONS = CPPFLAGS="-DU_ICU_VERSION_BUILDLEVEL_NUM=$(ICU_BUILD) -DSTD_INSPIRED -DMAC_OS_X_VERSION_MIN_REQUIRED=1040"
+               ENV_CONFIGURE= APPLE_INTERNAL_DIR="$(APPLE_INTERNAL_DIR)" \
+                       LANG="en_US.utf8" \
+                       CPPFLAGS="-DU_DISABLE_RENAMING=1 $(DEFINE_BUILD_LEVEL)" \
+                       CC="$(CC)" \
+                       CXX="$(CXX)" \
+                       CFLAGS="-DU_SHOW_CPLUSPLUS_API=1 -DU_SHOW_INTERNAL_API=1 -DICU_DATA_DIR=\"\\\"$(DATA_LOOKUP_DIR)\\\"\" -DICU_DATA_DIR_PREFIX_ENV_VAR=\"\\\"$(DATA_DIR_PREFIX_ENV_VAR)\\\"\" -m32 -g -Os -fno-exceptions -fvisibility=hidden" \
+                       CXXFLAGS="-std=c++11 -DU_SHOW_CPLUSPLUS_API=1 -DU_SHOW_INTERNAL_API=1 -DICU_DATA_DIR=\"\\\"$(DATA_LOOKUP_DIR)\\\"\" -DICU_DATA_DIR_PREFIX_ENV_VAR=\"\\\"$(DATA_DIR_PREFIX_ENV_VAR)\\\"\" -m32 -g -Os -fno-exceptions -fvisibility=hidden -fvisibility-inlines-hidden" \
+                       TZDATA="$(TZDATA)" \
+                       DYLD_LIBRARY_PATH="$(DSTROOT)/usr/local/lib"
+
+               ENV= APPLE_INTERNAL_DIR="$(APPLE_INTERNAL_DIR)" \
+                       LANG="en_US.utf8" \
+                       CC="$(CC)" \
+                       CXX="$(CXX)" \
+                       CFLAGS="-DU_SHOW_CPLUSPLUS_API=1 -DU_SHOW_INTERNAL_API=1 -DICU_DATA_DIR=\"\\\"$(DATA_LOOKUP_DIR)\\\"\" -DICU_DATA_DIR_PREFIX_ENV_VAR=\"\\\"$(DATA_DIR_PREFIX_ENV_VAR)\\\"\" -m32 -g -Os -fno-exceptions -fvisibility=hidden" \
+                       CXXFLAGS="-std=c++11 -DU_SHOW_CPLUSPLUS_API=1 -DU_SHOW_INTERNAL_API=1 -DICU_DATA_DIR=\"\\\"$(DATA_LOOKUP_DIR)\\\"\" -DICU_DATA_DIR_PREFIX_ENV_VAR=\"\\\"$(DATA_DIR_PREFIX_ENV_VAR)\\\"\" -m32 -g -Os -fno-exceptions -fvisibility=hidden -fvisibility-inlines-hidden" \
+                       TZDATA="$(TZDATA)" \
+                       DYLD_LIBRARY_PATH="$(DSTROOT)/usr/local/lib"
+
+               ENV_DEBUG= APPLE_INTERNAL_DIR="$(APPLE_INTERNAL_DIR)" \
+                       LANG="en_US.utf8" \
+                       CC="$(CC)" \
+                       CXX="$(CXX)" \
+                       CFLAGS="-DU_SHOW_CPLUSPLUS_API=1 -DU_SHOW_INTERNAL_API=1 -DICU_DATA_DIR=\"\\\"$(DATA_LOOKUP_DIR)\\\"\" -DICU_DATA_DIR_PREFIX_ENV_VAR=\"\\\"$(DATA_DIR_PREFIX_ENV_VAR)\\\"\" -m32 -O0 -gfull -fno-exceptions -fvisibility=hidden" \
+                       CXXFLAGS="-std=c++11 -DU_SHOW_CPLUSPLUS_API=1 -DU_SHOW_INTERNAL_API=1 -DICU_DATA_DIR=\"\\\"$(DATA_LOOKUP_DIR)\\\"\" -DICU_DATA_DIR_PREFIX_ENV_VAR=\"\\\"$(DATA_DIR_PREFIX_ENV_VAR)\\\"\" -m32 -O0 -gfull -fno-exceptions -fvisibility=hidden -fvisibility-inlines-hidden" \
+                       TZDATA="$(TZDATA)" \
+                       DYLD_LIBRARY_PATH="$(DSTROOT)/usr/local/lib"
+
+               ENV_PROFILE= APPLE_INTERNAL_DIR="$(APPLE_INTERNAL_DIR)" \
+                       LANG="en_US.utf8" \
+                       CC="$(CC)" \
+                       CXX="$(CXX)" \
+                       CFLAGS="-DU_SHOW_CPLUSPLUS_API=1 -DU_SHOW_INTERNAL_API=1 -DICU_DATA_DIR=\"\\\"$(DATA_LOOKUP_DIR)\\\"\" -DICU_DATA_DIR_PREFIX_ENV_VAR=\"\\\"$(DATA_DIR_PREFIX_ENV_VAR)\\\"\" -m32 -g -Os -pg -fno-exceptions -fvisibility=hidden" \
+                       CXXFLAGS="-std=c++11 -DU_SHOW_CPLUSPLUS_API=1 -DU_SHOW_INTERNAL_API=1 -DICU_DATA_DIR=\"\\\"$(DATA_LOOKUP_DIR)\\\"\" -DICU_DATA_DIR_PREFIX_ENV_VAR=\"\\\"$(DATA_DIR_PREFIX_ENV_VAR)\\\"\" -m32 -g -Os -pg -fno-exceptions -fvisibility=hidden -fvisibility-inlines-hidden" \
+                       TZDATA="$(TZDATA)" \
+                       DYLD_LIBRARY_PATH="$(DSTROOT)/usr/local/lib"
        endif
-       ENV=    APPLE_INTERNAL_DIR="$(APPLE_INTERNAL_DIR)" \
-               CFLAGS="-DICU_DATA_DIR=\"\\\"/usr/share/icu/\\\"\" $(RC_ARCHS:%=-arch %) -g -Os -fno-exceptions -fvisibility=hidden $(THUMB_FLAG)" \
-               CXXFLAGS="-DICU_DATA_DIR=\"\\\"/usr/share/icu/\\\"\" $(RC_ARCHS:%=-arch %) -g -Os -fno-exceptions -fno-rtti -fvisibility=hidden -fvisibility-inlines-hidden $(THUMB_FLAG)" \
-               RC_ARCHS="$(RC_ARCHS)" \
+else
+       CPPOPTIONS =
+       ENV_CONFIGURE= APPLE_INTERNAL_DIR="$(APPLE_INTERNAL_DIR)" \
+               CPPFLAGS="$(DEFINE_BUILD_LEVEL) -DSTD_INSPIRED -DMAC_OS_X_VERSION_MIN_REQUIRED=$(MAC_OS_X_VERSION_MIN_REQUIRED) $(ISYSROOT) $(ENV_CONFIGURE_ARCHS)" \
+               CC="$(CC)" \
+               CXX="$(CXX)" \
+               CFLAGS="-DU_SHOW_CPLUSPLUS_API=1 -DU_SHOW_INTERNAL_API=1 -DU_TIMEZONE=timezone -DICU_DATA_DIR=\"\\\"$(DATA_LOOKUP_DIR)\\\"\" -DU_TIMEZONE_FILES_DIR=\"\\\"$(TZDATA_LOOKUP_DIR)\\\"\" -DU_TIMEZONE_PACKAGE=\"\\\"$(TZDATA_PACKAGE)\\\"\" $(ENV_CONFIGURE_ARCHS) $(ICU_TARGET_VERSION) -g -Os -Wglobal-constructors -fno-exceptions -fvisibility=hidden $(ISYSROOT) $(THUMB_FLAG) $(CFLAGS_SANITIZER)" \
+               CXXFLAGS="--std=c++11 -DU_SHOW_CPLUSPLUS_API=1 -DU_SHOW_INTERNAL_API=1 -DU_TIMEZONE=timezone -DICU_DATA_DIR=\"\\\"$(DATA_LOOKUP_DIR)\\\"\" -DU_TIMEZONE_FILES_DIR=\"\\\"$(TZDATA_LOOKUP_DIR)\\\"\" -DU_TIMEZONE_PACKAGE=\"\\\"$(TZDATA_PACKAGE)\\\"\" $(ENV_CONFIGURE_ARCHS) $(ICU_TARGET_VERSION) -g -Os -Wglobal-constructors -fno-exceptions -fvisibility=hidden -fvisibility-inlines-hidden $(ISYSROOT) $(THUMB_FLAG) $(CXXFLAGS_SANITIZER)" \
+               RC_ARCHS="$(RC_ARCHS)" $(FORCEENDIAN)\
                TZDATA="$(TZDATA)" \
                DYLD_LIBRARY_PATH="$(DSTROOT)/usr/local/lib"
-               
-       ENV_CONFIGURE=  $(CPPOPTIONS) APPLE_INTERNAL_DIR="$(APPLE_INTERNAL_DIR)" \
-               CFLAGS="-DICU_DATA_DIR=\"\\\"/usr/share/icu/\\\"\" -g -Os -fno-exceptions -fvisibility=hidden $(THUMB_FLAG)" \
-               CXXFLAGS="-DICU_DATA_DIR=\"\\\"/usr/share/icu/\\\"\" -g -Os -fno-exceptions -fno-rtti -fvisibility=hidden -fvisibility-inlines-hidden $(THUMB_FLAG)" \
+
+       ENV= APPLE_INTERNAL_DIR="$(APPLE_INTERNAL_DIR)" \
+               CC="$(CC)" \
+               CXX="$(CXX)" \
+               CFLAGS="-DU_SHOW_CPLUSPLUS_API=1 -DU_SHOW_INTERNAL_API=1 -DU_TIMEZONE=timezone -DICU_DATA_DIR=\"\\\"$(DATA_LOOKUP_DIR)\\\"\" -DU_TIMEZONE_FILES_DIR=\"\\\"$(TZDATA_LOOKUP_DIR)\\\"\" -DU_TIMEZONE_PACKAGE=\"\\\"$(TZDATA_PACKAGE)\\\"\" $(RC_ARCHS:%=-arch %) $(ICU_TARGET_VERSION) -g -Os -Wglobal-constructors -fno-exceptions -fvisibility=hidden $(ISYSROOT) $(THUMB_FLAG) $(CFLAGS_SANITIZER)" \
+               CXXFLAGS="--std=c++11 -DU_SHOW_CPLUSPLUS_API=1 -DU_SHOW_INTERNAL_API=1 -DU_TIMEZONE=timezone -DICU_DATA_DIR=\"\\\"$(DATA_LOOKUP_DIR)\\\"\" -DU_TIMEZONE_FILES_DIR=\"\\\"$(TZDATA_LOOKUP_DIR)\\\"\" -DU_TIMEZONE_PACKAGE=\"\\\"$(TZDATA_PACKAGE)\\\"\" $(RC_ARCHS:%=-arch %) $(ICU_TARGET_VERSION) -g -Os -Wglobal-constructors -fno-exceptions -fvisibility=hidden -fvisibility-inlines-hidden $(ISYSROOT) $(THUMB_FLAG) $(CXXFLAGS_SANITIZER)" \
                RC_ARCHS="$(RC_ARCHS)" \
                TZDATA="$(TZDATA)" \
                DYLD_LIBRARY_PATH="$(DSTROOT)/usr/local/lib"
-       
-       ENV_DEBUG = APPLE_INTERNAL_DIR="$(APPLE_INTERNAL_DIR)" \
-               CFLAGS="-DICU_DATA_DIR=\"\\\"/usr/share/icu/\\\"\" $(RC_ARCHS:%=-arch %) -O0 -gfull -fno-exceptions -fvisibility=hidden $(THUMB_FLAG)" \
-               CXXFLAGS="-DICU_DATA_DIR=\"\\\"/usr/share/icu/\\\"\" $(RC_ARCHS:%=-arch %) -O0 -gfull -fno-exceptions -fno-rtti -fvisibility=hidden -fvisibility-inlines-hidden $(THUMB_FLAG)" \
+
+       ENV_DEBUG= APPLE_INTERNAL_DIR="$(APPLE_INTERNAL_DIR)" \
+               CC="$(CC)" \
+               CXX="$(CXX)" \
+               CFLAGS="-DU_SHOW_CPLUSPLUS_API=1 -DU_SHOW_INTERNAL_API=1 -DU_TIMEZONE=timezone -DICU_DATA_DIR=\"\\\"$(DATA_LOOKUP_DIR)\\\"\" -DU_TIMEZONE_FILES_DIR=\"\\\"$(TZDATA_LOOKUP_DIR)\\\"\" -DU_TIMEZONE_PACKAGE=\"\\\"$(TZDATA_PACKAGE)\\\"\" $(RC_ARCHS:%=-arch %) $(ICU_TARGET_VERSION) -O0 -gfull -Wglobal-constructors -fno-exceptions -fvisibility=hidden $(ISYSROOT) $(THUMB_FLAG) $(CFLAGS_SANITIZER)" \
+               CXXFLAGS="--std=c++11 -DU_SHOW_CPLUSPLUS_API=1 -DU_SHOW_INTERNAL_API=1 -DU_TIMEZONE=timezone -DICU_DATA_DIR=\"\\\"$(DATA_LOOKUP_DIR)\\\"\" -DU_TIMEZONE_FILES_DIR=\"\\\"$(TZDATA_LOOKUP_DIR)\\\"\" -DU_TIMEZONE_PACKAGE=\"\\\"$(TZDATA_PACKAGE)\\\"\" $(RC_ARCHS:%=-arch %) $(ICU_TARGET_VERSION) -O0 -gfull -Wglobal-constructors -fno-exceptions -fvisibility=hidden -fvisibility-inlines-hidden $(ISYSROOT) $(THUMB_FLAG) $(CXXFLAGS_SANITIZER)" \
                RC_ARCHS="$(RC_ARCHS)" \
                TZDATA="$(TZDATA)" \
                DYLD_LIBRARY_PATH="$(DSTROOT)/usr/local/lib"
-       
-       ENV_PROFILE = APPLE_INTERNAL_DIR="$(APPLE_INTERNAL_DIR)" \
-               CFLAGS="-DICU_DATA_DIR=\"\\\"/usr/share/icu/\\\"\" $(RC_ARCHS:%=-arch %) -g -Os -pg -fno-exceptions -fvisibility=hidden $(THUMB_FLAG)" \
-               CXXFLAGS="-DICU_DATA_DIR=\"\\\"/usr/share/icu/\\\"\" $(RC_ARCHS:%=-arch %) -g -Os -pg -fno-exceptions -fno-rtti -fvisibility=hidden -fvisibility-inlines-hidden $(THUMB_FLAG)" \
+
+       ENV_PROFILE= APPLE_INTERNAL_DIR="$(APPLE_INTERNAL_DIR)" \
+               CC="$(CC)" \
+               CXX="$(CXX)" \
+               CFLAGS="-DU_SHOW_CPLUSPLUS_API=1 -DU_SHOW_INTERNAL_API=1 -DU_TIMEZONE=timezone -DICU_DATA_DIR=\"\\\"$(DATA_LOOKUP_DIR)\\\"\" -DU_TIMEZONE_FILES_DIR=\"\\\"$(TZDATA_LOOKUP_DIR)\\\"\" -DU_TIMEZONE_PACKAGE=\"\\\"$(TZDATA_PACKAGE)\\\"\" $(RC_ARCHS:%=-arch %) $(ICU_TARGET_VERSION) -g -Os -pg -Wglobal-constructors -fno-exceptions -fvisibility=hidden $(ISYSROOT) $(THUMB_FLAG) $(CFLAGS_SANITIZER)" \
+               CXXFLAGS="--std=c++11 -DU_SHOW_CPLUSPLUS_API=1 -DU_SHOW_INTERNAL_API=1 -DU_TIMEZONE=timezone -DICU_DATA_DIR=\"\\\"$(DATA_LOOKUP_DIR)\\\"\" -DU_TIMEZONE_FILES_DIR=\"\\\"$(TZDATA_LOOKUP_DIR)\\\"\" -DU_TIMEZONE_PACKAGE=\"\\\"$(TZDATA_PACKAGE)\\\"\" $(RC_ARCHS:%=-arch %) $(ICU_TARGET_VERSION) -g -Os -pg -Wglobal-constructors -fno-exceptions -fvisibility=hidden -fvisibility-inlines-hidden $(ISYSROOT) $(THUMB_FLAG) $(CXXFLAGS_SANITIZER)" \
                RC_ARCHS="$(RC_ARCHS)" \
                TZDATA="$(TZDATA)" \
                DYLD_LIBRARY_PATH="$(DSTROOT)/usr/local/lib"
+
+       ENV_CONFIGURE_BUILDHOST= APPLE_INTERNAL_DIR="$(APPLE_INTERNAL_DIR)" \
+               CPPFLAGS="$(DEFINE_BUILD_LEVEL) -DSTD_INSPIRED -DMAC_OS_X_VERSION_MIN_REQUIRED=$(MAC_OS_X_VERSION_MIN_REQUIRED) $(HOSTISYSROOT)" \
+               CC="$(HOSTCC)" \
+               CXX="$(HOSTCXX)" \
+               CFLAGS="-DU_SHOW_CPLUSPLUS_API=1 -DU_SHOW_INTERNAL_API=1 -DU_TIMEZONE=timezone -DICU_DATA_DIR=\"\\\"$(DATA_LOOKUP_DIR_BUILDHOST)\\\"\" -DMAC_OS_X_VERSION_MIN_REQUIRED=$(MAC_OS_X_VERSION_MIN_REQUIRED) -mmacosx-version-min=$(OSX_HOST_VERSION_MIN_STRING) $(HOSTISYSROOT) -g -Os -Wglobal-constructors -fno-exceptions -fvisibility=hidden $(CFLAGS_SANITIZER)" \
+               CXXFLAGS="--std=c++11 -DU_SHOW_CPLUSPLUS_API=1 -DU_SHOW_INTERNAL_API=1 -DU_TIMEZONE=timezone -DICU_DATA_DIR=\"\\\"$(DATA_LOOKUP_DIR_BUILDHOST)\\\"\" -DMAC_OS_X_VERSION_MIN_REQUIRED=$(MAC_OS_X_VERSION_MIN_REQUIRED) -mmacosx-version-min=$(OSX_HOST_VERSION_MIN_STRING) $(HOSTISYSROOT) -g -Os -Wglobal-constructors -fno-exceptions -fvisibility=hidden -fvisibility-inlines-hidden $(CXXFLAGS_SANITIZER)" \
+               TZDATA="$(TZDATA)" \
+               DYLD_LIBRARY_PATH="$(DSTROOT)/usr/local/lib"
+
+       ENV_BUILDHOST= APPLE_INTERNAL_DIR="$(APPLE_INTERNAL_DIR)" \
+               CC="$(HOSTCC)" \
+               CXX="$(HOSTCXX)" \
+               CFLAGS="-DU_SHOW_CPLUSPLUS_API=1 -DU_SHOW_INTERNAL_API=1 -DU_TIMEZONE=timezone -DICU_DATA_DIR=\"\\\"$(DATA_LOOKUP_DIR_BUILDHOST)\\\"\" -DMAC_OS_X_VERSION_MIN_REQUIRED=$(MAC_OS_X_VERSION_MIN_REQUIRED) -mmacosx-version-min=$(OSX_HOST_VERSION_MIN_STRING) $(HOSTISYSROOT) -g -Os -Wglobal-constructors -fno-exceptions -fvisibility=hidden $(CFLAGS_SANITIZER)" \
+               CXXFLAGS="--std=c++11 -DU_SHOW_CPLUSPLUS_API=1 -DU_SHOW_INTERNAL_API=1 -DU_TIMEZONE=timezone -DICU_DATA_DIR=\"\\\"$(DATA_LOOKUP_DIR_BUILDHOST)\\\"\" -DMAC_OS_X_VERSION_MIN_REQUIRED=$(MAC_OS_X_VERSION_MIN_REQUIRED) -mmacosx-version-min=$(OSX_HOST_VERSION_MIN_STRING) $(HOSTISYSROOT) -g -Os -Wglobal-constructors -fno-exceptions -fvisibility=hidden -fvisibility-inlines-hidden $(CXXFLAGS_SANITIZER)" \
+               TZDATA="$(TZDATA)" \
+               DYLD_LIBRARY_PATH="$(DSTROOT)/usr/local/lib"
+
 endif
-       
+
 ENV_icu = ENV
 ENV_debug = ENV_DEBUG
 ENV_profile = ENV_PROFILE
 
-ORDERFILE=/usr/local/lib/OrderFiles/libicucore.order
+ifeq "$(BUILD_TYPE)" "DEVICE"
+       ORDERFILE=$(SDKPATH)/AppleInternal/OrderFiles/libicucore.order
+else ifeq "$(BUILD_TYPE)" "SIMULATOR"
+       ORDERFILE=$(SRCROOT)/ICU_embedded.order
+else
+       ORDERFILE=/usr/local/lib/OrderFiles/libicucore.order
+endif
 ifeq "$(shell test -f $(ORDERFILE) && echo YES )" "YES"
        SECTORDER_FLAGS=-sectorder __TEXT __text $(ORDERFILE)
 else
@@ -289,204 +1090,511 @@ endif
 #################################
 #################################
 
-.PHONY : icu check installsrc installhdrs clean install debug debug-install
+.PHONY : icu check installsrc installhdrs installhdrsint clean install debug debug-install \
+crossbuildhost icutztoolsforsdk
 .DELETE_ON_ERROR :
 
-icu debug profile : $(OBJROOT)/Makefile
-       (cd $(OBJROOT); \
-               $(MAKE) $($(ENV_$@)); \
+# Rule for adjusting sources for different train types.
+# Assumes current directory is icuSources to be patched.
+# This may be:
+#   $(SRCROOT)/icuSources for installsrc, or
+#   $(OBJROOT_CURRENT) if sources are copied for e.g. a local make.
+#
+# The various patchconfig files should assume the current directory is icuSources.
+#
+# Note that if sources have been installed by installsrc (only run as part of buildit or
+# submitproject for Apple platforms, not for Windows/Linux), then
+#    $(SRCROOT)/installsrcNotRunFlag is not present, and
+#    ADJUST_SOURCES has already have been run.
+# Otherwise, if we are doing a local build (e.g. make check, make install), or if
+# sources were submitted using submitproject for non-Apple platforms (Windows/Linux) then
+#    $(SRCROOT)/installsrcNotRunFlag is present, and
+#    ADJUST_SOURCES has not been run (run it after copying sources to OBJROOT_CURRENT)
+#
+
+ADJUST_SOURCES = \
+               if test "$(ICU_FOR_EMBEDDED_TRAINS)" = "YES"; then \
+                       patch -p1 <$(SRCROOT)/minimalpatchconfig.txt; \
+               elif test "$(WINDOWS)" = "YES"; then \
+                       patch -p1 <$(SRCROOT)/windowspatchconfig.txt; \
+               else \
+                       patch -p1 <$(SRCROOT)/patchconfig.txt; \
+               fi; \
+               if test "$(WINDOWS)" = "YES"; then \
+                       mv data/unidata/base_unidata/*.txt data/unidata/; \
+                       mv data/unidata/norm2/base_norm2/*.txt data/unidata/norm2/; \
+                       mv data/in/base_in/*.nrm data/in/; \
+                       mv data/in/base_in/*.icu data/in/; \
+               elif test "$(LINUX)" = "YES"; then \
+                       mv data/unidata/base_unidata/*.txt data/unidata/; \
+                       mv data/unidata/norm2/base_norm2/*.txt data/unidata/norm2/; \
+                       mv data/in/base_in/*.nrm data/in/; \
+                       mv data/in/base_in/*.icu data/in/; \
+               fi
+
+
+icu debug profile : $(OBJROOT_CURRENT)/Makefile
+       echo "# make for target";
+       (cd $(OBJROOT_CURRENT); \
+               $(MAKE) $($(ENV_$@)) || exit 1; \
                if test "$(WINDOWS)" = "YES"; then \
+                       (cd common; \
+                               rc.exe /folibicuuc.res $(CPPFLAGS) -DU_RELEASE=1 -D_CRT_SECURE_NO_DEPRECATE -I. -I../i18n \
+                                       "-DDEFAULT_ICU_PLUGINS=\"/AppleInternal/lib/icu\" " -DU_LOCAL_SERVICE_HOOK=1 libicuuc.rc; \
+                       ); \
+                       (cd i18n; \
+                               rc.exe /folibicuin.res $(CPPFLAGS) -DU_RELEASE=1 -D_CRT_SECURE_NO_DEPRECATE -I. -I../common libicuin.rc; \
+                       ); \
                        if test "$@" = "debug"; then \
                                (cd common; \
-                                       LINK.EXE /subsystem:console /DLL /nologo /base:"0x4a800000" /DEBUG \
-                                               /IMPLIB:../lib/icuuc_$@.lib /out:../lib/icuuc$(ICU_VERS)_$@.dll *.o \
-                                               common.res ../stubdata/icudt.lib advapi32.lib;); \
+                                       LINK.EXE /subsystem:console /DLL /nologo /base:"0x4a800000" /DYNAMICBASE /DEBUG \
+                                               /IMPLIB:../lib/libicuuc_$@.lib /out:../lib/libicuuc_$@.dll \
+                                               *.o libicuuc.res ../stubdata/icudt.lib advapi32.lib; \
+                               ); \
                                (cd i18n; \
-                                       LINK.EXE /subsystem:console /DLL /nologo /base:"0x4a900000" /DEBUG \
-                                               /IMPLIB:../lib/icuin_$@.lib /out:../lib/icuin$(ICU_VERS)_$@.dll *.o \
-                                               i18n.res ../lib/icuuc_$@.lib ../stubdata/icudt.lib advapi32.lib;); \
+                                       LINK.EXE /subsystem:console /DLL /nologo /base:"0x4a900000" /DYNAMICBASE /DEBUG \
+                                               /IMPLIB:../lib/libicuin_$@.lib /out:../lib/libicuin_$@.dll \
+                                               *.o libicuin.res ../lib/libicuuc_$@.lib ../stubdata/icudt.lib advapi32.lib; \
+                               ); \
+                       else \
+                               (cd common; \
+                                       rm -f ../lib/libicuuc.dll.manifest; \
+                                       if test "$(ARCH64)" = "YES"; then \
+                                               LINK.EXE /DLL /NXCOMPAT /DYNAMICBASE /DEBUG /OPT:REF /MANIFEST \
+                                                       /IMPLIB:../lib/libicuuc.lib /out:../lib/libicuuc.dll \
+                                                       *.o libicuuc.res ../stubdata/icudt.lib advapi32.lib; \
+                                       else \
+                                               LINK.EXE /DLL /NXCOMPAT /SAFESEH /DYNAMICBASE /DEBUG /OPT:REF /MANIFEST \
+                                                       /IMPLIB:../lib/libicuuc.lib /out:../lib/libicuuc.dll \
+                                                       *.o libicuuc.res ../stubdata/icudt.lib advapi32.lib; \
+                                       fi; \
+                                       mt.exe -nologo -manifest ../lib/libicuuc.dll.manifest -outputresource:"../lib/libicuuc.dll;2"; \
+                               ); \
+                               (cd i18n; \
+                                       rm -f ../lib/libicuin.dll.manifest; \
+                                       if test "$(ARCH64)" = "YES"; then \
+                                               LINK.EXE /DLL /NXCOMPAT /DYNAMICBASE /DEBUG /OPT:REF /MANIFEST \
+                                                       /IMPLIB:../lib/libicuin.lib /out:../lib/libicuin.dll \
+                                                       *.o libicuin.res ../lib/libicuuc.lib ../stubdata/icudt.lib advapi32.lib; \
+                                       else \
+                                               LINK.EXE /DLL /NXCOMPAT /SAFESEH /DYNAMICBASE /DEBUG /OPT:REF /MANIFEST \
+                                                       /IMPLIB:../lib/libicuin.lib /out:../lib/libicuin.dll \
+                                                       *.o libicuin.res ../lib/libicuuc.lib ../stubdata/icudt.lib advapi32.lib; \
+                                       fi; \
+                                       mt.exe -nologo -manifest ../lib/libicuin.dll.manifest -outputresource:"../lib/libicuin.dll;2"; \
+                               ); \
                        fi; \
                else \
-                       tmpfile=`mktemp -t weakexternal` || exit 1; \
-                       nm -m $(RC_ARCHS:%=-arch %) $(DYLIB_OBJS) | fgrep "weak external" | fgrep -v "undefined" | sed -e 's/.*weak external //' | sort | uniq | cat >$$tmpfile; \
-                       $($(ENV_$@)) $(CXX) -current_version $(ICU_VERS).$(ICU_SUBVERS) -compatibility_version 1 -dynamiclib -dynamic \
-                               $(RC_ARCHS:%=-arch %) $(CXXFLAGS) $(LDFLAGS) -single_module $(SECTORDER_FLAGS) -unexported_symbols_list $$tmpfile -dead_strip \
-                               -install_name $(libdir)$($(INSTALLED_DYLIB_$@)) -o ./$($(INSTALLED_DYLIB_$@)) $(DYLIB_OBJS); \
-                       if test -f ./$(ICU_DATA_DIR)/$(B_DATA_FILE); then \
-                               ln -fs ./$(ICU_DATA_DIR)/$(B_DATA_FILE); \
+                       if test "$(LINUX)" = "YES"; then \
+                               if test "$(ARCH64)" = "YES"; then \
+                                       $($(ENV_$@)) $(CXX) \
+                                               -m64 -g -Os -fno-exceptions -fvisibility=hidden -fvisibility-inlines-hidden \
+                                               $(CXXFLAGS) $(LDFLAGS) -shared -Wl,-Bsymbolic -Wl,-soname,$($(INSTALLED_DYLIB_$@)) -Wl,-L/usr/lib64/ -ldl \
+                                               -o ./$($(INSTALLED_DYLIB_$@)) $(DYLIB_OBJS); \
+                               else \
+                                       $($(ENV_$@)) $(CXX) \
+                                               -m32 -g -Os -fno-exceptions -fvisibility=hidden -fvisibility-inlines-hidden \
+                                               $(CXXFLAGS) $(LDFLAGS) -shared -Wl,-Bsymbolic -Wl,-soname,$($(INSTALLED_DYLIB_$@)) -ldl \
+                                               -o ./$($(INSTALLED_DYLIB_$@)) $(DYLIB_OBJS); \
+                               fi; \
                        else \
-                               DYLD_LIBRARY_PATH="./lib:./stubdata" \
-                               ./bin/icupkg -tb ./$(ICU_DATA_DIR)/$(L_DATA_FILE) $(B_DATA_FILE); \
+                               tmpfile=`mktemp -t weakexternal.XXXXXX` || exit 1; \
+                               $(NM) -m $(RC_ARCHS:%=-arch %) $(DYLIB_OBJS) | fgrep "weak external" | fgrep -v "undefined" | sed -e 's/.*weak external[^_]*//' | sort | uniq | cat >$$tmpfile; \
+                               if test ! "$(ICU_FOR_EMBEDDED_TRAINS)" = "YES"; then \
+                                       ZIPPERING_LDFLAGS=-Wl,-iosmac_version_min,12.0; \
+                               fi; \
+                               $($(ENV_$@)) $(CXX) -current_version $(ICU_VERS).$(ICU_SUBVERS) -compatibility_version 1 -dynamiclib -dynamic \
+                                       $(RC_ARCHS:%=-arch %) $(ICU_TARGET_VERSION) -g -Os -fno-exceptions -fvisibility=hidden -fvisibility-inlines-hidden $(ISYSROOT) $(THUMB_FLAG) \
+                                       $(CXXFLAGS) $(LDFLAGS) $$ZIPPERING_LDFLAGS -single_module $(SECTORDER_FLAGS) -unexported_symbols_list $$tmpfile -dead_strip \
+                                       -install_name $(libdir)$($(INSTALLED_DYLIB_$@)) -o ./$($(INSTALLED_DYLIB_$@)) $(DYLIB_OBJS); \
+                               if test "$@" = "icu"; then \
+                                       ln -fs  $(INSTALLED_DYLIB) $(DYLIB); \
+                                       echo '# build' $(INFOTOOL) 'linked against' $(LIB_NAME) ; \
+                                       $($(ENV_$@)) $(CXX) --std=c++11 $(RC_ARCHS:%=-arch %) -g -Os -fno-exceptions -fvisibility=hidden -fvisibility-inlines-hidden $(ISYSROOT) $(THUMB_FLAG) \
+                                               $(LDFLAGS) -dead_strip -o ./$(INFOTOOL) $(INFOTOOL_OBJS) -L./ -l$(LIB_NAME) ; \
+                                       echo '# build' $(TOOLS_DYLIB) 'linked against' $(LIB_NAME) ; \
+                                       $($(ENV_$@)) $(CXX) -current_version $(ICU_VERS).$(ICU_SUBVERS) -compatibility_version 1 -dynamiclib -dynamic \
+                                               $(RC_ARCHS:%=-arch %) $(ICU_TARGET_VERSION) -g -Os -fno-exceptions -fvisibility=hidden -fvisibility-inlines-hidden $(ISYSROOT) $(THUMB_FLAG) \
+                                               $(CXXFLAGS) $(LDFLAGS) -single_module \
+                                               -install_name $(locallibdir)$(TOOLS_DYLIB) -o ./$(TOOLS_DYLIB) $(TOOLS_DYLIB_OBJS) -L./ -l$(LIB_NAME) ; \
+                                       echo '# build' $(ICUZDUMPTOOL) 'linked against' $(TOOLSLIB_NAME) $(LIB_NAME) ; \
+                                       $($(ENV_$@)) $(LINK.cc) $(RC_ARCHS:%=-arch %) -g -Os $(ISYSROOT) $(THUMB_FLAG) --std=c++11 \
+                                               -dead_strip -o ./$(ICUZDUMPTOOL) $(ICUZDUMPTOOL_OBJS) -L./ -l$(TOOLSLIB_NAME) -l$(LIB_NAME); \
+                               fi; \
                        fi; \
-                       if test -f ./$(ICU_DATA_DIR)/$(L_DATA_FILE); then \
-                               ln -fs ./$(ICU_DATA_DIR)/$(L_DATA_FILE); \
+                       if test -f ./$(DATA_BUILD_SUBDIR)/$(B_DATA_FILE); then \
+                               ln -fs ./$(DATA_BUILD_SUBDIR)/$(B_DATA_FILE); \
+                       fi; \
+                       if test -f ./$(DATA_BUILD_SUBDIR)/$(L_DATA_FILE); then \
+                               ln -fs ./$(DATA_BUILD_SUBDIR)/$(L_DATA_FILE); \
                        else \
-                               DYLD_LIBRARY_PATH="./lib:./stubdata" \
-                               ./bin/icupkg -tl ./$(ICU_DATA_DIR)/$(B_DATA_FILE) $(L_DATA_FILE); \
+                               DYLD_LIBRARY_PATH=$(ICUPKGTOOLIBS) \
+                               $(ICUPKGTOOL) -tl ./$(DATA_BUILD_SUBDIR)/$(B_DATA_FILE) $(L_DATA_FILE); \
                        fi; \
+                       printf $(TZDATA_FORMAT_STRING) > $(TZDATA_FORMAT_FILE); \
                fi; \
        );
 
+crossbuildhost : $(CROSSHOST_OBJROOT)/Makefile
+       echo "# make for crossbuild host";
+       (cd $(CROSSHOST_OBJROOT); \
+               $(MAKE) $($(ENV_BUILDHOST)) || exit 1; \
+       );
+
+# For the install-icutztoolsforsdk target, SDKROOT will always be an OSX SDK root.
+# If the sources were installed using the minimalpatchconfig.txt patch, then
+# we need to patch using crosshostpatchconfig.txt as for $(CROSSHOST_OBJROOT)/Makefile
+# (otherwise we ignore the patch in crosshostpatchconfig.txt, using -N)
+icutztoolsforsdk : $(OBJROOT_CURRENT)/Makefile
+       echo "# make icutztoolsforsdk";
+       (cd $(OBJROOT_CURRENT); \
+               if test ! -e $(SRCROOT)/installsrcNotRunFlag ; then patch -N -p1 <$(SRCROOT)/crosshostpatchconfig.txt; fi; \
+               $(MAKE) $($(ENV)) || exit 1; \
+               echo '# build' $(TOOLS_DYLIB_FORTOOLS) 'linked against' $(LIB_NAME) ; \
+               $($(ENV)) $(CXX) -current_version $(ICU_VERS).$(ICU_SUBVERS) -compatibility_version 1 -dynamiclib -dynamic \
+                       -g -Os -fno-exceptions -fvisibility=hidden -fvisibility-inlines-hidden $(ISYSROOT) \
+                       $(CXXFLAGS) $(LDFLAGS) -single_module \
+                       -install_name $(locallibdir)$(TOOLS_DYLIB_FORTOOLS) -o ./$(TOOLS_DYLIB_FORTOOLS) $(TOOLS_DYLIB_OBJS_FORTOOLS) -L./ -l$(LIB_NAME) ; \
+               echo '# build' $(ZICTOOL) 'linked against' $(TOOLSLIB_NAME_FORTOOLS) ; \
+               $($(ENV_BUILDHOST)) $(CXX) --std=c++11 -g -Os -isysroot $(HOSTSDKPATH) \
+                       $(LDFLAGS) -dead_strip -o ./$(ZICTOOL) $(ZICTOOL_OBJS) -L./ -l$(TOOLSLIB_NAME_FORTOOLS) ; \
+               echo '# build' $(RESTOOL) 'linked against' $(TOOLSLIB_NAME_FORTOOLS) $(LIB_NAME) ; \
+               $($(ENV_BUILDHOST)) $(CXX) --std=c++11 -g -Os -isysroot $(HOSTSDKPATH) \
+                       $(LDFLAGS) -dead_strip -o ./$(RESTOOL) $(RESTOOL_OBJS) -L./ -l$(TOOLSLIB_NAME_FORTOOLS) -l$(LIB_NAME) ; \
+               echo '# build' $(PKGTOOL) 'linked against' $(TOOLSLIB_NAME_FORTOOLS) ; \
+               $($(ENV_BUILDHOST)) $(CXX) --std=c++11 -g -Os -isysroot $(HOSTSDKPATH) \
+                       $(LDFLAGS) -dead_strip -o ./$(PKGTOOL) $(PKGTOOL_OBJS) -L./ -l$(TOOLSLIB_NAME_FORTOOLS) ; \
+               echo '# build' $(TZ2ICUTOOL) 'linked against' $(TOOLSLIB_NAME_FORTOOLS) ; \
+               $($(ENV_BUILDHOST)) $(CXX) --std=c++11 -g -Os -isysroot $(HOSTSDKPATH) \
+                       $(LDFLAGS) -dead_strip -o ./$(TZ2ICUTOOL) $(TZ2ICUTOOL_OBJS) -L./ -l$(TOOLSLIB_NAME_FORTOOLS) ; \
+               echo '# build' $(GENBRKTOOL) 'linked against' $(TOOLSLIB_NAME_FORTOOLS) ; \
+               $($(ENV_BUILDHOST)) $(CXX) --std=c++11 -g -Os -isysroot $(HOSTSDKPATH) \
+                       $(LDFLAGS) -dead_strip -o ./$(GENBRKTOOL) $(GENBRKTOOL_OBJS) -L./ -l$(TOOLSLIB_NAME_FORTOOLS) ; \
+       );
+
 check : icu
-       (cd $(OBJROOT); \
-               ICU_DATA=$(OBJROOT) $(MAKE) $(ENV) check; \
+ifneq "$(CROSS_BUILD)" "YES"
+       (cd $(OBJROOT_CURRENT); \
+               ICU_DATA=$(OBJROOT_CURRENT) $(MAKE) $(ENV) check; \
        );
+else
+       $(warning check not supported for cross-build)
+endif
 
 check-debug: debug
-       (cd $(OBJROOT); \
-               ICU_DATA=$(OBJROOT) $(MAKE) $(ENV_DEBUG) check; \
+ifneq "$(CROSS_BUILD)" "YES"
+       (cd $(OBJROOT_CURRENT); \
+               ICU_DATA=$(OBJROOT_CURRENT) $(MAKE) $(ENV_DEBUG) check; \
        );
+else
+       $(warning check not supported for cross-build)
+endif
 
 samples: icu
-       (cd $(OBJROOT)/samples; \
+       (cd $(OBJROOT_CURRENT)/samples; \
                $(MAKE) $(ENV_DEBUG) $(LIBOVERRIDES); \
        );
 
 extra: icu
-       (cd $(OBJROOT)/extra; \
+       (cd $(OBJROOT_CURRENT)/extra; \
                $(MAKE) $(ENV_DEBUG) $(LIBOVERRIDES); \
        );
 
-$(OBJROOT)/Makefile : 
-       if test ! -d $(OBJROOT); then \
-               mkdir -p $(OBJROOT); \
+ifneq "$(CROSS_BUILD)" "YES"
+$(OBJROOT_CURRENT)/Makefile :
+else
+$(OBJROOT_CURRENT)/Makefile : crossbuildhost
+endif
+       if test ! -d $(OBJROOT_CURRENT); then \
+               mkdir -p $(OBJROOT_CURRENT); \
        fi;
-       if test "$(WINDOWS)" = "YES"; then \
-               cp -Rpf $(SRCROOT)/icuSources/* $(OBJROOT); \
-               (cd $(OBJROOT)/data/unidata; mv base_unidata/*.txt .;); \
-               (cd $(OBJROOT); $(ENV_CONFIGURE) ./runConfigureICU Cygwin/MSVC $(CONFIG_FLAGS);) \
-       else \
-               (cd $(OBJROOT); $(ENV_CONFIGURE) $(SRCROOT)/icuSources/runConfigureICU MacOSX $(CONFIG_FLAGS);) \
+       cp -Rpf $(SRCROOT)/icuSources/* $(OBJROOT_CURRENT)/;
+       (cd $(OBJROOT_CURRENT); \
+               if test -e $(SRCROOT)/installsrcNotRunFlag ; then $(ADJUST_SOURCES); fi; \
+               if test -f $(TZAUXFILESDIR)/metaZones.txt ; then cp -p $(TZAUXFILESDIR)/metaZones.txt data/misc/; fi; \
+               if test -f $(TZAUXFILESDIR)/timezoneTypes.txt ; then cp -p $(TZAUXFILESDIR)/timezoneTypes.txt data/misc/; fi; \
+               if test -f $(TZAUXFILESDIR)/windowsZones.txt ; then cp -p $(TZAUXFILESDIR)/windowsZones.txt data/misc/; fi; \
+               if test -f $(TZAUXFILESDIR)/icuregions ; then cp -p $(TZAUXFILESDIR)/icuregions tools/tzcode/; fi; \
+               if test -f $(TZAUXFILESDIR)/icuzones ; then cp -p $(TZAUXFILESDIR)/icuzones tools/tzcode/; fi; \
+               if test "$(WINDOWS)" = "YES"; then \
+                       echo "# configure for target"; \
+                       $(ENV_CONFIGURE) ./runConfigureICU Cygwin/MSVC $(CONFIG_FLAGS); \
+               elif test "$(LINUX)" = "YES"; then \
+                       echo "# configure for target"; \
+                       $(ENV_CONFIGURE) ./runConfigureICU Linux $(CONFIG_FLAGS); \
+               elif test "$(CROSS_BUILD)" = "YES"; then \
+                       echo "# configure for crossbuild target"; \
+                       $(ENV_CONFIGURE) ./configure --host=$(TARGET_SPEC) --with-cross-build=$(CROSSHOST_OBJROOT) $(CONFIG_FLAGS); \
+               else \
+                       echo "# configure for non-crossbuild target"; \
+                       $(ENV_CONFIGURE) ./runConfigureICU MacOSX $(CONFIG_FLAGS); \
+               fi; \
+       );
+
+# for the tools that build the data file, cannot set UDATA_DEFAULT_ACCESS = UDATA_ONLY_PACKAGES
+# as minimalpatchconfig.txt does; need different patches for the host build. Thus
+# we have to use crosshostpatchconfig.txt to undo the udata.h changes that would have
+# been made for ICU_FOR_EMBEDDED_TRAINS builds.
+$(CROSSHOST_OBJROOT)/Makefile :
+       if test ! -d $(CROSSHOST_OBJROOT); then \
+               mkdir -p $(CROSSHOST_OBJROOT); \
        fi;
-       if test "$(MINIMAL)" = "YES"; then \
-               (cd $(OBJROOT)/common/unicode/; \
-                       cp $(SRCROOT)/icuSources/common/unicode/uconfig.h . ; \
-                       patch <$(SRCROOT)/minimalpatchconfig.txt;) \
-       elif test "$(WINDOWS)" = "YES"; then \
-               (cd $(OBJROOT)/common/unicode/; \
-                       cp $(SRCROOT)/icuSources/common/unicode/uconfig.h . ; \
-                       patch <$(SRCROOT)/windowspatchconfig.txt;) \
-       else \
-               (cd $(OBJROOT)/common/unicode/; \
-                       cp $(SRCROOT)/icuSources/common/unicode/uconfig.h . ; \
-                       patch <$(SRCROOT)/patchconfig.txt;) \
-       fi; \
-       if test -f $(SRCROOT)/icuSources/common/Makefile.local; then \
-               cp -p $(SRCROOT)/icuSources/common/Makefile.local $(OBJROOT)/common/ ; \
-       fi; 
+       cp -Rpf $(SRCROOT)/icuSources/* $(CROSSHOST_OBJROOT);
+       (cd $(CROSSHOST_OBJROOT); \
+               if test -e $(SRCROOT)/installsrcNotRunFlag; then $(ADJUST_SOURCES); fi; \
+               if test -f $(TZAUXFILESDIR)/metaZones.txt ; then cp -p $(TZAUXFILESDIR)/metaZones.txt data/misc/; fi; \
+               if test -f $(TZAUXFILESDIR)/timezoneTypes.txt ; then cp -p $(TZAUXFILESDIR)/timezoneTypes.txt data/misc/; fi; \
+               if test -f $(TZAUXFILESDIR)/windowsZones.txt ; then cp -p $(TZAUXFILESDIR)/windowsZones.txt data/misc/; fi; \
+               if test -f $(TZAUXFILESDIR)/icuregions ; then cp -p $(TZAUXFILESDIR)/icuregions tools/tzcode/; fi; \
+               if test -f $(TZAUXFILESDIR)/icuzones ; then cp -p $(TZAUXFILESDIR)/icuzones tools/tzcode/; fi; \
+               if test "$(ICU_FOR_EMBEDDED_TRAINS)" = "YES"; then \
+                       patch -p1 <$(SRCROOT)/crosshostpatchconfig.txt; \
+               fi; \
+               echo "# configure for crossbuild host"; \
+               $(ENV_CONFIGURE_BUILDHOST) ./runConfigureICU MacOSX $(CONFIG_FLAGS); \
+       );
 
 #################################
 # B&I TARGETS
 #################################
 
-# Since our sources are in icuSources (ignore the ICU subdirectory for now), we wish to 
+# Since our sources are in icuSources (ignore the ICU subdirectory for now), we wish to
 # copy them to somewhere else. We tar it to stdout, cd to the appropriate directory, and
-# untar from stdin.  We then look for all the CVS directories and remove them. We may have 
-# to remove the .cvsignore files also.
+# untar from stdin.
+# Do NOT include installsrcNotRunFlag in the list of files to tar up, that defeats the purpose.
 
 installsrc :
        if test ! -d $(SRCROOT); then mkdir $(SRCROOT); fi;
        if test -d $(SRCROOT)/icuSources ; then rm -rf $(SRCROOT)/icuSources; fi;
-       tar cf - ./makefile ./ICU.plist ./license.html ./icuSources ./minimalpatchconfig.txt ./windowspatchconfig.txt ./patchconfig.txt | (cd $(SRCROOT) ; tar xfp -); \
-       for i in `find $(SRCROOT)/icuSources/ | grep "CVS$$"` ; do \
-               if test -d $$i ; then \
-                       rm -rf $$i; \
-               fi; \
-       done
-       for j in `find $(SRCROOT)/icuSources/ | grep ".cvsignore"` ; do \
-               if test -f $$j ; then \
-                       rm -f $$j; \
-               fi; \
-       done
+       tar cf - ./makefile ./ICU.plist ./LICENSE ./icuSources ./cldrFiles ./emojiData ./modules $(INSTALLSRC_VARFILES) | (cd $(SRCROOT) ; tar xfp -); \
+       (cd $(SRCROOT)/icuSources; $(ADJUST_SOURCES) );
 
-# This works. Just not for ~ in the DSTROOT. We run configure first (in case it hasn't 
-# been already). Then we make the install-headers target on specific makefiles (since 
+# This works. Just not for ~ in the DSTROOT. We run configure first (in case it hasn't
+# been already). Then we make the install-headers target on specific makefiles (since
 # not every subdirectory/sub-component has a install-headers target).
 
-installhdrs : $(OBJROOT)/Makefile
-       (cd $(OBJROOT); \
+# installhdrs should be no-op for BUILD_TYPE=TOOL
+ifeq "$(BUILD_TYPE)" "TOOL"
+installhdrs :
+else
+installhdrs : installhdrsint
+endif
+
+MKINSTALLDIRS=$(SHELL) $(SRCROOT)/icuSources/mkinstalldirs
+INSTALL_DATA=${INSTALL} -m 644
+
+ifneq "$(ICU_FOR_APPLE_PLATFORMS)" "YES"
+installhdrsint : $(OBJROOT_CURRENT)/Makefile
+else ifneq "$(RC_XBS)" "YES"
+installhdrsint : $(OBJROOT_CURRENT)/Makefile
+else
+installhdrsint :
+endif
+       (if test -e $(SRCROOT)/installsrcNotRunFlag; then cd $(OBJROOT_CURRENT); else cd $(SRCROOT)/icuSources/; fi; \
+               $(MKINSTALLDIRS) $(DSTROOT)/$(PRIVATE_HDR_PREFIX)/include/unicode/; \
                for subdir in $(HDR_MAKE_SUBDIR); do \
-                       (cd $$subdir; $(MAKE) -e DESTDIR=$(DSTROOT) $(ENV) install-headers); \
+                       echo "# Subdir $$subdir"; \
+                       (cd $$subdir/unicode; \
+                               for i in *.h; do \
+                                       echo "$(INSTALL_DATA) $$i $(DSTROOT)/$(PRIVATE_HDR_PREFIX)/include/unicode/"; \
+                                       $(INSTALL_DATA) $$i $(DSTROOT)/$(PRIVATE_HDR_PREFIX)/include/unicode/ || exit; \
+                               done; \
+                       ); \
                done; \
+               if test "$(ICU_FOR_EMBEDDED_TRAINS)" = "YES"; then \
+                       if test ! -d $(DSTROOT)/$(HDR_PREFIX)/include/unicode/; then \
+                               $(INSTALL) -d -m 0755 $(DSTROOT)/$(HDR_PREFIX)/include/unicode/; \
+                       fi; \
+                       if test -d $(DSTROOT)/$(PRIVATE_HDR_PREFIX)/include/unicode/; then \
+                               (cd $(DSTROOT)/$(PRIVATE_HDR_PREFIX)/include/unicode; \
+                                       for i in *.h; do \
+                                               if fgrep -q -x $$i $(SRCROOT)/minimalapis.txt ; then \
+                                                       mv $$i $(DSTROOT)/$(HDR_PREFIX)/include/unicode ; \
+                                               fi ; \
+                                       done ); \
+                               if test ! "$(RC_XBS)" = "YES"; then \
+                                       echo "# Not building for XBS, so running minimal test"; \
+                                       $(CC) $(SRCROOT)/minimalapisTest.c $(INSTALLHDRS_ARCH) $(ISYSROOT) -nostdinc \
+                                               -I $(DSTROOT)/$(HDR_PREFIX)/include/ -I $(SDKPATH)/usr/include/ -E > /dev/null ; \
+                               fi; \
+                       fi; \
+                       $(INSTALL_DATA) $(SRCROOT)/modules/embedded/module.modulemap $(DSTROOT)/$(HDR_PREFIX)/include/unicode/ ; \
+                       $(INSTALL_DATA) $(SRCROOT)/modules/embedded/module.private.modulemap $(DSTROOT)/$(PRIVATE_HDR_PREFIX)/include/unicode/ ; \
+               else \
+                       if test "$(ICU_FOR_APPLE_PLATFORMS)" = "YES"; then \
+                               $(INSTALL_DATA) $(SRCROOT)/modules/macos/module.private.modulemap $(DSTROOT)/$(PRIVATE_HDR_PREFIX)/include/unicode/ ; \
+                       fi; \
+               fi; \
        );
 
-# We run configure and run make first. This generates the .o files. We then link them 
-# all up together into libicucore. Then we put it into its install location, create 
-# symbolic links, and then strip the main dylib. Then install the remaining libraries. 
+# We run configure and run make first. This generates the .o files. We then link them
+# all up together into libicucore. Then we put it into its install location, create
+# symbolic links, and then strip the main dylib. Then install the remaining libraries.
 # We cleanup the sources folder.
 
-install : installhdrs icu
-       if test ! -d $(DSTROOT)$(libdir)/; then \
-               $(INSTALL) -d -m 0775 $(DSTROOT)$(libdir)/; \
-       fi;
+install : installhdrsint icu
        if test "$(WINDOWS)" = "YES"; then \
-               if test ! -d $(DSTROOT)$(winlibdir)/; then \
-                       $(INSTALL) -d -m 0775 $(DSTROOT)$(winlibdir)/; \
+               if test ! -d $(DSTROOT)/$(winprogdir)/; then \
+                       $(INSTALL) -d -m 0755 $(DSTROOT)/$(winprogdir)/; \
+               fi; \
+               if test ! -d $(DSTROOT)/$(winintlibdir)/; then \
+                       $(INSTALL) -d -m 0755 $(DSTROOT)/$(winintlibdir)/; \
                fi; \
-               $(INSTALL) -b -m 0644 $(OBJROOT)/lib/icuuc.lib $(DSTROOT)$(winlibdir)icuuc.lib; \
-               $(INSTALL) -b -m 0644 $(OBJROOT)/lib/icuuc$(ICU_VERS).pdb $(DSTROOT)$(libdir)icuuc$(ICU_VERS).pdb; \
-               $(INSTALL) -b -m 0755 $(OBJROOT)/lib/icuuc$(ICU_VERS).dll $(DSTROOT)$(libdir)icuuc$(ICU_VERS).dll; \
-               $(INSTALL) -b -m 0644 $(OBJROOT)/lib/icuin.lib $(DSTROOT)$(winlibdir)icuin.lib; \
-               $(INSTALL) -b -m 0644 $(OBJROOT)/lib/icuin$(ICU_VERS).pdb $(DSTROOT)$(libdir)icuin$(ICU_VERS).pdb; \
-               $(INSTALL) -b -m 0755 $(OBJROOT)/lib/icuin$(ICU_VERS).dll $(DSTROOT)$(libdir)icuin$(ICU_VERS).dll; \
-               $(INSTALL) -b -m 0755 $(OBJROOT)/lib/icudt$(ICU_VERS).dll $(DSTROOT)$(libdir)icudt$(ICU_VERS).dll; \
+               $(INSTALL) -b -m 0644 $(OBJROOT_CURRENT)/lib/libicuuc.lib $(DSTROOT)/$(winintlibdir)libicuuc.lib; \
+               $(INSTALL) -b -m 0644 $(OBJROOT_CURRENT)/lib/libicuuc.pdb $(DSTROOT)/$(winprogdir)libicuuc.pdb; \
+               $(INSTALL) -b -m 0755 $(OBJROOT_CURRENT)/lib/libicuuc.dll $(DSTROOT)/$(winprogdir)libicuuc.dll; \
+               $(INSTALL) -b -m 0644 $(OBJROOT_CURRENT)/lib/libicuin.lib $(DSTROOT)/$(winintlibdir)libicuin.lib; \
+               $(INSTALL) -b -m 0644 $(OBJROOT_CURRENT)/lib/libicuin.pdb $(DSTROOT)/$(winprogdir)libicuin.pdb; \
+               $(INSTALL) -b -m 0755 $(OBJROOT_CURRENT)/lib/libicuin.dll $(DSTROOT)/$(winprogdir)libicuin.dll; \
+               $(INSTALL) -b -m 0755 $(OBJROOT_CURRENT)/lib/icudt$(ICU_VERS).dll $(DSTROOT)/$(winprogdir)icudt$(ICU_VERS).dll; \
        else \
-               $(INSTALL) -b -m 0664 $(OBJROOT)/$(INSTALLED_DYLIB) $(DSTROOT)$(libdir)$(INSTALLED_DYLIB); \
-               (cd $(DSTROOT)$(libdir); \
-               ln -fs  $(INSTALLED_DYLIB) $(DYLIB)); \
-               cp $(OBJROOT)/$(INSTALLED_DYLIB) $(SYMROOT)/$(INSTALLED_DYLIB); \
-               strip -x -u -r -S $(DSTROOT)$(libdir)$(INSTALLED_DYLIB); \
+               if test ! -d $(DSTROOT)/$(libdir)/; then \
+                       $(INSTALL) -d -m 0755 $(DSTROOT)/$(libdir)/; \
+               fi; \
+               $(INSTALL) -b -m 0755 $(OBJROOT_CURRENT)/$(INSTALLED_DYLIB) $(DSTROOT)/$(libdir)$(INSTALLED_DYLIB); \
+               if test "$(LINUX)" = "YES"; then \
+                       if test ! -d $(SYMROOT_CURRENT)/; then \
+                               $(INSTALL) -d -m 0755 $(SYMROOT_CURRENT)/; \
+                       fi; \
+                       cp $(OBJROOT_CURRENT)/$(INSTALLED_DYLIB) $(SYMROOT_CURRENT)/$(INSTALLED_DYLIB); \
+                       strip -x -S $(DSTROOT)/$(libdir)$(INSTALLED_DYLIB); \
+               else \
+                       (cd $(DSTROOT)/$(libdir); \
+                       ln -fs  $(INSTALLED_DYLIB) $(DYLIB)); \
+                       cp $(OBJROOT_CURRENT)/$(INSTALLED_DYLIB) $(SYMROOT_CURRENT)/$(INSTALLED_DYLIB); \
+                       $(DSYMTOOL) -o $(SYMROOT_CURRENT)/$(INSTALLED_DYLIB)$(DSYMSUFFIX) $(SYMROOT_CURRENT)/$(INSTALLED_DYLIB); \
+                       $(STRIPCMD) -x -u -r -S $(DSTROOT)/$(libdir)$(INSTALLED_DYLIB); \
+               fi; \
                for subdir in $(EXTRA_LIBS); do \
-                       (cd $(OBJROOT)/$$subdir; $(MAKE) -e DESTDIR=$(DSTROOT) $(ENV) install-library;) \
+                       (cd $(OBJROOT_CURRENT)/$$subdir; $(MAKE) -e DESTDIR=$(DSTROOT)/ $(ENV) install-library;) \
                done; \
-               if test ! -d $(DSTROOT)$(datadir)/; then \
-                       $(INSTALL) -d -m 0755 $(DSTROOT)$(datadir)/; \
-               fi;     \
-               if test -f $(OBJROOT)/$(B_DATA_FILE); then \
-                       $(INSTALL) -b -m 0644  $(OBJROOT)/$(B_DATA_FILE) $(DSTROOT)$(datadir)$(B_DATA_FILE); \
+               if test ! -d $(DSTROOT)/$(DATA_INSTALL_DIR)/; then \
+                       $(INSTALL) -d -m 0755 $(DSTROOT)/$(DATA_INSTALL_DIR)/; \
+               fi; \
+               if test -f $(OBJROOT_CURRENT)/$(L_DATA_FILE); then \
+                       $(INSTALL) -b -m 0444  $(OBJROOT_CURRENT)/$(L_DATA_FILE) $(DSTROOT)/$(DATA_INSTALL_DIR)$(L_DATA_FILE); \
                fi; \
-               if test -f $(OBJROOT)/$(L_DATA_FILE); then \
-                       $(INSTALL) -b -m 0644  $(OBJROOT)/$(L_DATA_FILE) $(DSTROOT)$(datadir)$(L_DATA_FILE); \
+               if test -f $(OBJROOT_CURRENT)/$(TZDATA_FORMAT_FILE); then \
+                       $(INSTALL) -b -m 0644  $(OBJROOT_CURRENT)/$(TZDATA_FORMAT_FILE) $(DSTROOT)/$(DATA_INSTALL_DIR)$(TZDATA_FORMAT_FILE); \
                fi; \
-               if test ! -d $(DSTROOT)$(OPEN_SOURCE_VERSIONS_DIR)/; then \
-                       $(INSTALL) -d -m 0755 $(DSTROOT)$(OPEN_SOURCE_VERSIONS_DIR)/; \
+               if test ! -d $(DSTROOT)/$(OPEN_SOURCE_VERSIONS_DIR)/; then \
+                       $(INSTALL) -d -m 0755 $(DSTROOT)/$(OPEN_SOURCE_VERSIONS_DIR)/; \
                fi; \
-               $(INSTALL) -b -m 0644 $(SRCROOT)/ICU.plist $(DSTROOT)$(OPEN_SOURCE_VERSIONS_DIR)ICU.plist; \
-               if test ! -d $(DSTROOT)$(OPEN_SOURCE_LICENSES_DIR)/; then \
-                       $(INSTALL) -d -m 0755 $(DSTROOT)$(OPEN_SOURCE_LICENSES_DIR)/; \
+               $(INSTALL) -b -m 0644 $(SRCROOT)/ICU.plist $(DSTROOT)/$(OPEN_SOURCE_VERSIONS_DIR)ICU.plist; \
+               if test ! -d $(DSTROOT)/$(OPEN_SOURCE_LICENSES_DIR)/; then \
+                       $(INSTALL) -d -m 0755 $(DSTROOT)/$(OPEN_SOURCE_LICENSES_DIR)/; \
+               fi; \
+               $(INSTALL) -b -m 0644 $(SRCROOT)/LICENSE $(DSTROOT)/$(OPEN_SOURCE_LICENSES_DIR)ICU.txt; \
+               if test ! -d $(DSTROOT)/$(CLDRFILESDIR)/; then \
+                       $(INSTALL) -d -m 0755 $(DSTROOT)/$(CLDRFILESDIR)/; \
+               fi; \
+               $(INSTALL) -b -m 0644  $(SRCROOT)/cldrFiles/supplementalData.xml $(DSTROOT)/$(CLDRFILESDIR)/supplementalData.xml; \
+               $(INSTALL) -b -m 0644  $(SRCROOT)/cldrFiles/plurals.xml $(DSTROOT)/$(CLDRFILESDIR)/plurals.xml; \
+               if test ! -d $(DSTROOT)/$(EMOJI_DATA_DIR)/; then \
+                       $(INSTALL) -d -m 0755 $(DSTROOT)/$(EMOJI_DATA_DIR)/; \
+               fi; \
+               $(INSTALL) -b -m 0644 $(SRCROOT)/emojiData/charClasses.txt $(DSTROOT)/$(EMOJI_DATA_DIR)/charClasses.txt; \
+               $(INSTALL) -b -m 0644 $(SRCROOT)/emojiData/lineClasses.txt $(DSTROOT)/$(EMOJI_DATA_DIR)/lineClasses.txt; \
+               if test "$(LINUX)" != "YES"; then \
+                       if test ! -d $(DSTROOT)/$(localtooldir)/; then \
+                               $(INSTALL) -d -m 0755 $(DSTROOT)/$(localtooldir)/; \
+                       fi; \
+                       if test -f $(OBJROOT_CURRENT)/$(INFOTOOL); then \
+                               echo '# install' $(INFOTOOL) 'to' $(DSTROOT)/$(localtooldir)$(INFOTOOL) ; \
+                               $(INSTALL) -b -m 0755  $(OBJROOT_CURRENT)/$(INFOTOOL) $(DSTROOT)/$(localtooldir)$(INFOTOOL); \
+                               cp $(OBJROOT_CURRENT)/$(INFOTOOL) $(SYMROOT_CURRENT)/$(INFOTOOL); \
+                               $(DSYMTOOL) -o $(SYMROOT_CURRENT)/$(INFOTOOL)$(DSYMSUFFIX) $(SYMROOT_CURRENT)/$(INFOTOOL); \
+                       fi; \
+                       if test ! -d $(DSTROOT)/$(locallibdir)/; then \
+                               $(INSTALL) -d -m 0755 $(DSTROOT)/$(locallibdir)/; \
+                       fi; \
+                       if test -f $(OBJROOT_CURRENT)/$(TOOLS_DYLIB); then \
+                               echo '# install' $(TOOLS_DYLIB) 'to' $(DSTROOT)/$(locallibdir)$(TOOLS_DYLIB) ; \
+                               $(INSTALL) -b -m 0755 $(OBJROOT_CURRENT)/$(TOOLS_DYLIB) $(DSTROOT)/$(locallibdir)$(TOOLS_DYLIB); \
+                               cp $(OBJROOT_CURRENT)/$(TOOLS_DYLIB) $(SYMROOT_CURRENT)/$(TOOLS_DYLIB); \
+                               $(DSYMTOOL) -o $(SYMROOT_CURRENT)/$(TOOLS_DYLIB)$(DSYMSUFFIX) $(SYMROOT_CURRENT)/$(TOOLS_DYLIB); \
+                       fi; \
+                       if test -f $(OBJROOT_CURRENT)/$(ICUZDUMPTOOL); then \
+                               echo '# install' $(ICUZDUMPTOOL) 'to' $(DSTROOT)/$(localtooldir)$(ICUZDUMPTOOL) ; \
+                               $(INSTALL) -b -m 0755  $(OBJROOT_CURRENT)/$(ICUZDUMPTOOL) $(DSTROOT)/$(localtooldir)$(ICUZDUMPTOOL); \
+                               cp $(OBJROOT_CURRENT)/$(ICUZDUMPTOOL) $(SYMROOT_CURRENT)/$(ICUZDUMPTOOL); \
+                               $(DSYMTOOL) -o $(SYMROOT_CURRENT)/$(ICUZDUMPTOOL)$(DSYMSUFFIX) $(SYMROOT_CURRENT)/$(ICUZDUMPTOOL); \
+                       fi; \
                fi; \
-               $(INSTALL) -b -m 0644 $(SRCROOT)/license.html $(DSTROOT)$(OPEN_SOURCE_LICENSES_DIR)ICU.html; \
        fi;
 
 DEPEND_install_debug = debug
 DEPEND_install_profile = profile
-       
+
 .SECONDEXPANSION:
 install_debug install_profile : $$(DEPEND_$$@)
-       if test ! -d $(DSTROOT)$(libdir)/; then \
-               $(INSTALL) -d -m 0775 $(DSTROOT)$(libdir)/; \
-       fi;
        if test "$(WINDOWS)" = "YES"; then \
-               if test ! -d $(DSTROOT)$(winlibdir)/; then \
-                       $(INSTALL) -d -m 0775 $(DSTROOT)$(winlibdir)/; \
+               if test ! -d $(DSTROOT)/$(winprogdir)/; then \
+                       $(INSTALL) -d -m 0755 $(DSTROOT)/$(winprogdir)/; \
+               fi; \
+               if test ! -d $(DSTROOT)/$(winintlibdir)/; then \
+                       $(INSTALL) -d -m 0755 $(DSTROOT)/$(winintlibdir)/; \
                fi; \
-               $(INSTALL) -b -m 0644 $(OBJROOT)/lib/icuuc_$(DEPEND_$@).lib $(DSTROOT)$(winlibdir)icuuc_$(DEPEND_$@).lib; \
-               $(INSTALL) -b -m 0644 $(OBJROOT)/lib/icuuc$(ICU_VERS)_$(DEPEND_$@).pdb $(DSTROOT)$(libdir)icuuc$(ICU_VERS)_$(DEPEND_$@).pdb; \
-               $(INSTALL) -b -m 0755 $(OBJROOT)/lib/icuuc$(ICU_VERS)_$(DEPEND_$@).dll $(DSTROOT)$(libdir)icuuc$(ICU_VERS)_$(DEPEND_$@).dll; \
-               $(INSTALL) -b -m 0644 $(OBJROOT)/lib/icuin_$(DEPEND_$@).lib $(DSTROOT)$(winlibdir)icuin_$(DEPEND_$@).lib; \
-               $(INSTALL) -b -m 0644 $(OBJROOT)/lib/icuin$(ICU_VERS)_$(DEPEND_$@).pdb $(DSTROOT)$(libdir)icuin$(ICU_VERS)_$(DEPEND_$@).pdb; \
-               $(INSTALL) -b -m 0755 $(OBJROOT)/lib/icuin$(ICU_VERS)_$(DEPEND_$@).dll $(DSTROOT)$(libdir)icuin$(ICU_VERS)_$(DEPEND_$@).dll; \
+               $(INSTALL) -b -m 0644 $(OBJROOT_CURRENT)/lib/libicuuc_$(DEPEND_$@).lib $(DSTROOT)/$(winintlibdir)libicuuc_$(DEPEND_$@).lib; \
+               $(INSTALL) -b -m 0644 $(OBJROOT_CURRENT)/lib/libicuuc_$(DEPEND_$@).pdb $(DSTROOT)/$(winprogdir)libicuuc_$(DEPEND_$@).pdb; \
+               $(INSTALL) -b -m 0755 $(OBJROOT_CURRENT)/lib/libicuuc_$(DEPEND_$@).dll $(DSTROOT)/$(winprogdir)libicuuc_$(DEPEND_$@).dll; \
+               $(INSTALL) -b -m 0644 $(OBJROOT_CURRENT)/lib/libicuin_$(DEPEND_$@).lib $(DSTROOT)/$(winintlibdir)libicuin_$(DEPEND_$@).lib; \
+               $(INSTALL) -b -m 0644 $(OBJROOT_CURRENT)/lib/libicuin_$(DEPEND_$@).pdb $(DSTROOT)/$(winprogdir)libicuin_$(DEPEND_$@).pdb; \
+               $(INSTALL) -b -m 0755 $(OBJROOT_CURRENT)/lib/libicuin_$(DEPEND_$@).dll $(DSTROOT)/$(winprogdir)libicuin_$(DEPEND_$@).dll; \
        else \
-               $(INSTALL) -b -m 0664 $(OBJROOT)/$($(INSTALLED_DYLIB_$(DEPEND_$@))) $(DSTROOT)$(libdir)$($(INSTALLED_DYLIB_$(DEPEND_$@))); \
-               (cd $(DSTROOT)$(libdir); \
-               ln -fs  $($(INSTALLED_DYLIB_$(DEPEND_$@))) $($(DYLIB_$(DEPEND_$@)))); \
-               cp $(OBJROOT)/$($(INSTALLED_DYLIB_$(DEPEND_$@))) $(SYMROOT)/$($(INSTALLED_DYLIB_$(DEPEND_$@))); \
-               strip -x -u -r -S $(DSTROOT)$(libdir)$($(INSTALLED_DYLIB_$(DEPEND_$@))); \
+               if test ! -d $(DSTROOT)/$(libdir)/; then \
+                       $(INSTALL) -d -m 0755 $(DSTROOT)/$(libdir)/; \
+               fi; \
+               $(INSTALL) -b -m 0664 $(OBJROOT_CURRENT)/$($(INSTALLED_DYLIB_$(DEPEND_$@))) $(DSTROOT)/$(libdir)$($(INSTALLED_DYLIB_$(DEPEND_$@))); \
+               if test "$(LINUX)" = "YES"; then \
+                       if test ! -d $(SYMROOT_CURRENT)/; then \
+                               $(INSTALL) -d -m 0755 $(SYMROOT_CURRENT)/; \
+                       fi; \
+                       cp $(OBJROOT_CURRENT)/$($(INSTALLED_DYLIB_$(DEPEND_$@))) $(SYMROOT_CURRENT)/$($(INSTALLED_DYLIB_$(DEPEND_$@))); \
+                       strip -x -S $(DSTROOT)/$(libdir)$($(INSTALLED_DYLIB_$(DEPEND_$@))); \
+               else \
+                       (cd $(DSTROOT)/$(libdir); \
+                       ln -fs  $($(INSTALLED_DYLIB_$(DEPEND_$@))) $($(DYLIB_$(DEPEND_$@)))); \
+                       cp $(OBJROOT_CURRENT)/$($(INSTALLED_DYLIB_$(DEPEND_$@))) $(SYMROOT_CURRENT)/$($(INSTALLED_DYLIB_$(DEPEND_$@))); \
+                       $(STRIPCMD) -x -u -r -S $(DSTROOT)/$(libdir)$($(INSTALLED_DYLIB_$(DEPEND_$@))); \
+               fi; \
                for subdir in $(EXTRA_LIBS); do \
-                       (cd $(OBJROOT)/$$subdir; $(MAKE) -e DESTDIR=$(DSTROOT) $(ENV) install-library;) \
+                       (cd $(OBJROOT_CURRENT)/$$subdir; $(MAKE) -e DESTDIR=$(DSTROOT)/ $(ENV) install-library;) \
                done; \
        fi;
 
 clean :
        -rm -rf $(OBJROOT)
 
+# For the install-icutztoolsforsdk target, SDKROOT will always be an OSX SDK root
+install-icutztoolsforsdk : icutztoolsforsdk
+       if test ! -d $(DSTROOT)$(localtooldir)/; then \
+               $(INSTALL) -d -m 0755 $(DSTROOT)$(localtooldir)/; \
+       fi;
+       if test ! -d $(DSTROOT)$(locallibdir)/; then \
+               $(INSTALL) -d -m 0755 $(DSTROOT)$(locallibdir)/; \
+       fi;
+       if test -f $(OBJROOT_CURRENT)/$(TOOLS_DYLIB_FORTOOLS); then \
+               echo '# install' $(TOOLS_DYLIB_FORTOOLS) 'to' $(DSTROOT)$(locallibdir)$(TOOLS_DYLIB_FORTOOLS) ; \
+               $(INSTALL) -b -m 0755 $(OBJROOT_CURRENT)/$(TOOLS_DYLIB_FORTOOLS) $(DSTROOT)$(locallibdir)$(TOOLS_DYLIB_FORTOOLS); \
+       fi;
+       if test -f $(OBJROOT_CURRENT)/$(ZICTOOL); then \
+               echo '# install' $(ZICTOOL) 'to' $(DSTROOT)$(localtooldir)$(ZICTOOL) ; \
+               $(INSTALL) -b -m 0755  $(OBJROOT_CURRENT)/$(ZICTOOL) $(DSTROOT)$(localtooldir)$(ZICTOOL); \
+       fi;
+       if test -f $(OBJROOT_CURRENT)/$(RESTOOL); then \
+               echo '# install' $(RESTOOL) 'to' $(DSTROOT)$(localtooldir)$(RESTOOL) ; \
+               $(INSTALL) -b -m 0755  $(OBJROOT_CURRENT)/$(RESTOOL) $(DSTROOT)$(localtooldir)$(RESTOOL); \
+       fi;
+       if test -f $(OBJROOT_CURRENT)/$(PKGTOOL); then \
+               echo '# install' $(PKGTOOL) 'to' $(DSTROOT)$(localtooldir)$(PKGTOOL) ; \
+               $(INSTALL) -b -m 0755  $(OBJROOT_CURRENT)/$(PKGTOOL) $(DSTROOT)$(localtooldir)$(PKGTOOL); \
+       fi;
+       if test -f $(OBJROOT_CURRENT)/$(TZ2ICUTOOL); then \
+               echo '# install' $(TZ2ICUTOOL) 'to' $(DSTROOT)$(localtooldir)$(TZ2ICUTOOL) ; \
+               $(INSTALL) -b -m 0755  $(OBJROOT_CURRENT)/$(TZ2ICUTOOL) $(DSTROOT)$(localtooldir)$(TZ2ICUTOOL); \
+       fi;
+       if test -f $(OBJROOT_CURRENT)/$(GENBRKTOOL); then \
+               echo '# install' $(GENBRKTOOL) 'to' $(DSTROOT)$(localtooldir)$(GENBRKTOOL) ; \
+               $(INSTALL) -b -m 0755  $(OBJROOT_CURRENT)/$(GENBRKTOOL) $(DSTROOT)$(localtooldir)$(GENBRKTOOL); \
+       fi;