Fix "make layoutlib" under Windows+Cygwin

# Bring in all modules that need to be built.

ifneq ($(dont_bother),true)

ifeq ($(HOST_OS),windows)

ifeq ($(HOST_OS)-$(HOST_ARCH),darwin-ppc)

SDK_ONLY := true

$(info Building the SDK under darwin-ppc is actually obsolete and unsupported.)

$(error stop)

endif

ifeq ($(HOST_OS)-$(HOST_ARCH),darwin-ppc)

ifeq ($(HOST_OS),windows)

SDK_ONLY := true

endif

ifeq ($(SDK_ONLY),true)

# ----- SDK for Windows ------

# These configure the build targets that are available for the SDK under Cygwin.

# The first section defines all the C/C++ tools that can be compiled under Cygwin,

# These configure the build targets that are available for the SDK under Windows.

# The first section defines all the C/C++ tools that can be compiled in C/C++,

# the second section defines all the Java ones (assuming javac is available.)

subdirs := \

	external/qemu \

	external/sqlite/dist \

	external/zlib \

	frameworks/base/libs/utils \

	frameworks/base/tools/aapt \

	frameworks/base/tools/aidl \

	frameworks/base/opengl/libs \

	frameworks/base \

	system/core/adb \

	system/core/fastboot \

	system/core/libcutils \

# The following can only be built if "javac" is available.

# This check is used when building parts of the SDK under Cygwin.

ifneq (,$(shell which javac 2>/dev/null))

$(warning sdk-only: javac available.)

subdirs += \

	build/tools/signapk \

	dalvik/dx \

	sdk/layoutopt \

	development/apps \

	development/tools/mkstubs \

	frameworks/base/tools/layoutlib \

	external/googleclient \

	packages

else

$(warning sdk-only: javac not available.)

$(warning SDK_ONLY: javac not available.)

endif

# Exclude tools/acp when cross-compiling windows under linux