Merge "Re-tighten default compiler options."

TARGET_ANDROID_CONFIG_CFLAGS := -include $(android_config_h) -I $(dir $(android_config_h))

TARGET_GLOBAL_CFLAGS += $(TARGET_ANDROID_CONFIG_CFLAGS)

# This warning causes dalvik not to build with gcc 4.6+ and -Werror.

# We cannot turn it off blindly since the option is not available

# in gcc-4.4.x.  We also want to disable sincos optimization globally

# by turning off the builtin sin function.

# The "-Wunused-but-set-variable" option often breaks projects that enable

# "-Wall -Werror" due to a commom idiom "ALOGV(mesg)" where ALOGV is turned

# into no-op in some builds while mesg is defined earlier. So we explicitly

# disable "-Wunused-but-set-variable" here.

ifneq ($(filter 4.6 4.6.% 4.7 4.7.% 4.8, $(TARGET_GCC_VERSION)),)

TARGET_GLOBAL_CFLAGS += -Wno-unused-but-set-variable -fno-builtin-sin \

			-fno-strict-volatile-bitfields \

			-Wno-unused-parameter -Wno-unused-but-set-parameter

			-fno-strict-volatile-bitfields

endif

# This is to avoid the dreaded warning compiler message: