From 3f0610384a2a32e77565b22b9e5ad479ccce8856 Mon Sep 17 00:00:00 2001
From: Koushik Dutta <koushd@gmail.com>
Date: Tue, 7 May 2013 14:06:35 -0700
Subject: Add support for cross compiling Windows tools on Darwin.

Change-Id: I71372543e8da02e1d2437d6da7eb46b0a72c9870
---
 core/Makefile                  |  2 +-
 core/combo/HOST_windows-x86.mk | 12 ++++++++++--
 core/config.mk                 |  2 +-
 core/envsetup.mk               |  4 +---
 4 files changed, 13 insertions(+), 7 deletions(-)

diff --git a/core/Makefile b/core/Makefile
index 94b5561..cae5d1f 100644
--- a/core/Makefile
+++ b/core/Makefile
@@ -1660,7 +1660,7 @@ $(INTERNAL_SDK_TARGET): $(deps)
 MAIN_SDK_NAME := $(sdk_name)
 MAIN_SDK_DIR  := $(sdk_dir)
 MAIN_SDK_ZIP  := $(INTERNAL_SDK_TARGET)
-ifneq ($(filter win_sdk,$(MAKECMDGOALS)),)
+ifneq ($(filter win_sdk winsdk-coretools,$(MAKECMDGOALS)),)
 include $(TOPDIR)development/build/tools/windows_sdk.mk
 endif
 
diff --git a/core/combo/HOST_windows-x86.mk b/core/combo/HOST_windows-x86.mk
index 85bc1e0..bca6e31 100644
--- a/core/combo/HOST_windows-x86.mk
+++ b/core/combo/HOST_windows-x86.mk
@@ -23,22 +23,30 @@ TOOLS_PREFIX := #prebuilt/windows/host/bin/
 TOOLS_EXE_SUFFIX := .exe
 
 # Settings to use MinGW has a cross-compiler under Linux
-ifneq ($(findstring Linux,$(UNAME)),)
 ifneq ($(strip $(USE_MINGW)),)
 HOST_ACP_UNAVAILABLE := true
 TOOLS_EXE_SUFFIX :=
 HOST_GLOBAL_CFLAGS += -DUSE_MINGW
 ifneq ($(strip $(BUILD_HOST_64bit)),)
+ifeq ($(BUILD_OS),darwin)
+$(error Windows amd64 cross compile builds not supported from Darwin)
+else
 TOOLS_PREFIX := /usr/bin/amd64-mingw32msvc-
 HOST_C_INCLUDES += /usr/lib/gcc/amd64-mingw32msvc/4.4.2/include
 HOST_GLOBAL_LD_DIRS += -L/usr/amd64-mingw32msvc/lib
+endif
+else
+ifeq ($(BUILD_OS),darwin)
+TOOLS_PREFIX := /usr/local/gcc-4.8.0-qt-4.8.4-for-mingw32/win32-gcc/bin//i586-mingw32-
+HOST_C_INCLUDES += /usr/local/gcc-4.8.0-qt-4.8.4-for-mingw32/win32-gcc/i586-mingw32/include /usr/local/gcc-4.8.0-qt-4.8.4-for-mingw32/win32-gcc/i586-mingw32/include/ddk
+HOST_GLOBAL_LD_DIRS += -L/usr/local/gcc-4.8.0-qt-4.8.4-for-mingw32/win32-gcc/i586-mingw32/lib
 else
 TOOLS_PREFIX := /usr/bin/i586-mingw32msvc-
 HOST_C_INCLUDES += /usr/lib/gcc/i586-mingw32msvc/3.4.4/include
 HOST_GLOBAL_LD_DIRS += -L/usr/i586-mingw32msvc/lib
+endif
 endif # BUILD_HOST_64bit
 endif # USE_MINGW
-endif # Linux
 
 HOST_CC := $(TOOLS_PREFIX)gcc$(TOOLS_EXE_SUFFIX)
 HOST_CXX := $(TOOLS_PREFIX)g++$(TOOLS_EXE_SUFFIX)
diff --git a/core/config.mk b/core/config.mk
index ab06f6a..90237b7 100644
--- a/core/config.mk
+++ b/core/config.mk
@@ -336,7 +336,7 @@ endif
 
 OLD_FLEX := prebuilts/misc/$(HOST_PREBUILT_TAG)/flex/flex-2.5.4a$(HOST_EXECUTABLE_SUFFIX)
 
-ifeq ($(HOST_OS),darwin)
+ifeq ($(BUILD_OS),darwin)
 # Mac OS' screwy version of java uses a non-standard directory layout
 # and doesn't even seem to have tools.jar.  On the other hand, javac seems
 # to be able to magically find the classes in there, wherever they are, so
diff --git a/core/envsetup.mk b/core/envsetup.mk
index 7a3ec92..1211887 100644
--- a/core/envsetup.mk
+++ b/core/envsetup.mk
@@ -55,13 +55,11 @@ endif
 # BUILD_OS is the real host doing the build.
 BUILD_OS := $(HOST_OS)
 
-# Under Linux, if USE_MINGW is set, we change HOST_OS to Windows to build the
+# If USE_MINGW is set, we change HOST_OS to Windows to build the
 # Windows SDK. Only a subset of tools and SDK will manage to build properly.
-ifeq ($(HOST_OS),linux)
 ifneq ($(USE_MINGW),)
 	HOST_OS := windows
 endif
-endif
 
 ifeq ($(HOST_OS),)
 $(error Unable to determine HOST_OS from uname -sm: $(UNAME)!)
-- 
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