Merge "select.mk: Tune ccache options"

include $(BUILD_COMBOS)/$(combo_target)$(combo_os_arch).mk

ifneq ($(USE_CCACHE),)

  # The default check uses size and modification time, causing false misses

  # since the mtime depends when the repo was checked out

  export CCACHE_COMPILERCHECK := content

  # See man page, optimizations to get more cache hits

  # implies that __DATE__ and __TIME__ are not critical for functionality.

  # Ignore include file modification time since it will depend on when

  # the repo was checked out

  export CCACHE_SLOPPINESS := time_macros,include_file_mtime,file_macro

  # Turn all preprocessor absolute paths into relative paths.

  # Fixes absolute paths in preprocessed source due to use of -g.

  # We don't really use system headers much so the rootdir is

  # fine; ensures these paths are relative for all Android trees

  # on a workstation.

  export CCACHE_BASEDIR := /

  CCACHE_HOST_TAG := $(HOST_PREBUILT_TAG)

  # If we are cross-compiling Windows binaries on Linux

  # then use the linux ccache binary instead.